Hot Rolled Flat Products

T E C H N I C A L C A T A L O G U E Hot Rolled Flat Products

AHMSA s hot rolled products comply with the highest international quality standards. The company s plate and coil production processes are certified under the ISO 9002 standard. To comply with its automotive industry customers, AHMSA s hot rolling area obtained the QS 9000 certification. In an effort to protect the environment during its production processes, the Company also received the ISO 14001 certification. AHMSA supplies plate (cut-to-length and coiled) and hot rolled strip (coiled) in different grades and specifications for various applications in the autromotive and construction industries. These products are also used to manufacture heavy machinery, tubing, structures and pressure vessels, among others. AHMSA is Mexico s only manufacturer of wide plate. The grades presented in this catalogue represent our main product line. A minimum volume is required to manufacture certain grades and/or are subject to other restrictions. Types of packaging: Standard Standard with paper (for pickled) Overseas (for pickled) Shipping: Truck or railroad I n d e x PLATE Low, medium and high carbon steel 1 Pressure vessel steel 2 Medium and high strength structural steel 3 Pipeline, casing, tubing and drilling pipe steel 4 Atmospheric corrosion resistant structural steel 5 Dimensional ranges 6 Tolerances 8 HOT ROLLED COIL Low, medium and high carbon steel 11 High formability steel for automotive parts 12 Steel for shapes and structures 13 Pressure vessel steel 14 Pipeline, casing, tubing and drilling pipe steel 15 Atmospheric corrosion resistant structural steel 16 Tolerances 17 Dimensional ranges 19 Skin Pass / Pickling / Floor plate 21

LOW, MEDIUM AND HIGH CARBON STEEL PLATE Characteristics Specification Chemical composition (maximum %) C Mn P S Si SAE 1008 0.10 0.50 0.030 0.035 --- 1 SAE 1010 0.08-0.13 0.30-0.60 0.030 0.035 --- 1 SAE 1015 0.12-0.18 0.30-0.60 0.030 0.035 --- 1 SAE 1020 0.17-0.23 0.60-0.90 0.030 0.035 --- 2 SAE 1025 0.22-0.28 0.30-0.60 0.030 0.035 0.35 2 SAE 1030 0.27-0.34 0.60-0.90 0.030 0.035 0.35 2 SAE 1035 0.31-0.38 0.60-0.90 0.030 0.035 0.35 2 SAE 1040 0.36-0.44 0.60-0.90 0.030 0.035 0.35 2 SAE 1045 0.42-0.50 0.60-0.90 0.030 0.035 0.35 2 SAE 1050 0.47-0.55 0.60-0.90 0.030 0.035 0.35 2 SAE 1055 0.52-0.60 0.60-0.90 0.030 0.035 0.35 2 SAE 1060 0.55-0.66 0.60-0.90 0.030 0.035 0.35 2 SAE 1065 (1) 0.59-0.70 0.60-0.90 0.030 0.035 0.35 3 SAE 1070 (1) 0.65-0.76 0.60-0.90 0.030 0.035 0.35 3 SAE 1075 (1) 0.69-0.80 0.40-0.70 0.030 0.035 0.35 3 SAE 1080 (1) 0.74-0.88 0.60-0.90 0.030 0.035 0.35 3 SAE 1085 (1) 0.80-0.90 0.70-1.00 0.030 0.035 0.35 3 SAE 4140 (1) 0.36-0.44 0.70-1.00 0.030 0.040 0.15-0.35 3 SAE 1552 0.55 1.50 0.030 0.035 0.35 2 Size Range Low carbon to manufacture commercial shapes, welded pipes, etc. Medium carbon to manufacture structural parts. Machinery parts, tools, etc. Machinery parts, tools, wheelbarrows, shovels, etc. Machinery parts. Typical applications Agricultural tools. Agricultural tools, colters, knife blades. Plowing disks, colters, machetes. Machinery parts, gears, pulleys. Tempered parts, colters, knife blades. 1) Cut-to-length plate s maximum weight is 4 metric tons and is manufactured in a width of up to 76, cut-edge. 1

PRESSURE VESSEL STEEL PLATE Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cb Yield Point Ksi Tensile strength Ksi elongation % (8 ) ASTM/ASME SA-285-C 0.28 0.90 0.035 0.035 --- --- 33 55-75 23 1 Size Range Typical applications Low and medium strength for stationary vessels. ASTM/ASME SA-455 0.33 0.85 1.20 0.035 0.035 0.40 0.020 45 75-95 15 2 ASTM/ASME SA-515-60 (1) 0.27 0.90 0.035 0.035 --- --- 33 60-80 20 2 ASTM/ASME SA-516-60 0.27 0.90 0.035 0.035 --- --- 33 60-80 20 2 ASTM/ASME SA-516-70 0.31 1.20 0.035 0.035 --- --- 38 70-90 --- 2 ASTM/ASME SA-515-70 (1) 0.31 1.20 0.035 0.035 --- --- 38 70-90 --- 2 ASTM/ASME SA-612 0.25 1.0-1.35 0.035 0.035.15 -.40 0.020 --- 83-105 --- 3 AAR TC 128-B 0.25 1.0-1.35 0.035 0.035.15 -.40 0.020 --- 83-105 --- 3 High strength for stationary vessels. Medium strength vessels for medium and high temperature service. Medium strength vessels for medium and low temperature service. Vessels for medium and low temperature service. Vessels for medium and high temperature service. Railroad tanks NOM B 475 0.20 1.50 0.035 0.035 --- --- 50 71-90 18 3 Fuel deposits, gas spheres. 1) Cut-to-length plate s maximum weight is 4 metric tons and is manufactured in a width of up to 76, cut-edge. 2

MEDIUM AND HIGH STRENGTH STRUCTURAL STEEL PLATE Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cb V LC-PAILAS (1) 0.06 0.35 0.030 0.030 0.40 --- --- --- --- --- 1 ASTM A-283-A 0.14 0.90 0.035 0.040 0.40 --- --- 24 45-60 27 1 ASTM A-283-B 0.17 0.90 0.035 0.040 0.40 --- --- 27 50-65 25 1 ASTM A-283-C 0.24 0.90 0.035 0.040 0.40 --- --- 30 55-75 22 1 ASTM A-36 0.29 1.20 0.040 0.050 0.40 --- --- 36 58-80 20 1 ABS-A,B,D,E 0.23 1.35 0.035 0.040 --- --- --- 34 58-71 21 1 LLOYD S-A,B,D,E 0.21 1.35 0.035 0.040 --- --- --- 34 58-71 21 1 ASTM A-131-A,B,D,E 0.23 1.35 0.035 0.040 --- --- --- 34 58-71 21 1 ASTM A-131 AH-36 0.20 1.35 0.035 0.040 0.50 0.050 0.10 51 71-90 22 3 DIN/BS EN 10025 S235 0.18 0.90 0.035 0.040 0.40 --- --- 35 55 20 2 DIN/BS EN 10025 S275 0.18 1.50 0.035 0.040 0.40 --- --- 37 63 20 2 DIN/BS EN 10025 S355 0.20 1.50 0.035 0.040 0.40 --- --- 51 71 18 3 ASTM A-572-50 0.23 1.50 0.035 0.035 0.40 0.050 0.06 50 65 18 2 ASTM A-572-60 0.26 1.50 0.035 0.040 0.40 0.050 0.06 60 75 16 2 ASTM A-572-65 0.23 1.50 0.035 0.040 0.40 0.050 0.06 65 80 15 3 B 483 Gr. 35 0.21 1.50 0.035 0.040 0.40 0.050 --- 50 65 18 2 B 483 Gr. 39 0.21 1.50 0.035 0.040 0.40 0.050 --- 55 70 18 3 AHMSA 50 0.23 1.50 0.035 0.040 0.40 0.050 --- 50 65 18 2 AHMSA 55 0.27 1.50 0.035 0.040 0.40 0.050 --- 55 70 18 3 ASTM A-537 0.23 1.50 0.035 0.040 0.40 0.050 --- 50 70 25 3 ASTM A-656 Gr. 50 0.20 1.50 0.035 0.035 0.40 --- --- 50 70 18 2 ASTM A-656 Gr. 60 0.20 1.50 0.035 0.035 0.40 --- --- 60 75 18 3 ASTM A-656 Gr. 70 0.18 1.60 0.035 0.035 0.40 --- --- 70 85 16 3 ASTM A-656 Gr. 80 0.18 1.60 0.035 0.035 0.40 --- --- 80 95 14 3 AHMSA ALLOY (1) 0.30 1.2-1.8 0.040 0.040.15 -.30 --- --- --- --- --- 2 ASTM A-633-C 0.23 1.50 0.035 0.040 0.40 0.050 --- 50 70 25 2 Yield Point Tensile Strength elongation % (8 ) Size Range Typical applications Large shallow pans. Structures of moderate use and high welding capacity. Medium strength, structural, welded girders, column bases. Medium strength structural for shipbuilding. High strength structural for shipbuilding. Structures of moderate use and high welding capacity. Medium strength, structural, welded girders, column bases. High strength, welded girders, bridges, buildings. High strength low alloy, welded girders, bridges, buildings. High strength low alloy, post bases, lighting poles. High strength, structures, welded girders, column bases. High strength, structures, welded girders, tower bases, columns. High strength normalized, guaranteed impact under low temp. High strength, structures, welded girders. Extra high strength for structures where low weight is required. Abrasion resistant steel for overused parts. High strength normalized, guaranteed impact under low temp. 1) Cut-to-length plate s maximum weight is 4 metric tons maximum and is manufactured in a width of up to 76, cut-edge. 3

PIPELINE, CASING, TUBING AND DRILLING PIPE STEEL PLATE Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cb V Yield Point Tensile Strength elongation % (8 ) Size Range Typical applications API 5L-A 0.20 1.10 0.035 0.035 0.35 --- --- 30 60 35 1 API 5L-B 0.20 1.15 0.035 0.035 0.35 --- --- 35 60 35 1 API 5L X-42 0.16 1.20 0.025 0.020 0.35 --- --- 42 61 35 1 ASTM A-252-C 0.20 1.10 0.035 0.035 0.35 --- --- 35 60 35 1 ASTM A-53-A 0.20 1.15 0.035 0.035 0.35 --- --- 30 60 35 1 ASTM A-53-B 0.20 1.15 0.035 0.035 0.35 --- --- 35 60 35 2 API 5L X-46 0.16 1.20 0.025 0.020 0.35 0.05 0.06 46 62 35 2 Low tensile strength pipeline. Medium tensile strength pipeline. Low tensile strength pipeline. Medium and high tensile strength pipeline. API 5L X-52 0.15 1.35 0.025 0.020 0.35 0.05 0.06 52 66 33 3 API 5L X-56 0.15 1.35 0.025 0.020 0.35 0.05 0.06 56 68 33 3 API 5L X-60 0.15 1.50 0.025 0.020 0.35 0.05 0.06 60 76 32 3 High tensile strength pipeline. API 5L X-65 0.15 1.60 0.025 0.020 0.35 0.05 0.06 65 78 32 3 API 5L X-70 0.15 1.60 0.025 0.020 0.35 0.05 0.06 70 83 30 3 API J-55 0.30 1.35 0.030 0.025 0.35 0.05 0.06 55 70-90 32 3 API 5CT-N-80 0.35 1.50 0.025 0.020 0.35 0.05 0.06 --- --- --- 1 API 2H 50 (2) 0.18 1.60 0.035 0.006 --- --- --- 50 70 25 3 API 2MT1 (2) 0.18 1.60 0.035 0.006 --- --- --- 50 70 25 3 API X-52-GA (2) 0.10 1.05 0.025 0.005 0.35 0.05 0.06 52-68 66-80 35 3 API X-60-GA (2) 0.10 1.05 0.025 0.005 0.35 0.05 0.06 60-75 --- 32 3 Casing, tubing and drill pipe. Pipes for support in marine platforms. High tensile strength pipeline for sour gas conduction. API X-65-GA* (2) 0.10 1.05 0.025 0.005 0.35 0.05 0.06 68-80 80-92 30 3 * Contains a 0.20% maximum of molybdenum. 2) Due to special requirements, a feasibility analysis is always required for these steel grades. 4

ATMOSPHERIC CORROSION RESISTANT STRUCTURAL STEEL PLATE Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cu min. Ni Cr V Yield Point Tensile Strength elongation % (8 ) Size Range Typical applications ASTM A-36-Cu 0.28 1.20 0.035 0.04 0.40 0.20 --- --- --- 36 58-80 20 2 Medium strength for welded girders, bridges and building parts. ASTM A-588-B 0.20 0.75-1.35 0.040 0.05 0.50 0.20-0.40 0.50 0.40-0.70 0.10 50 70-90 18 3 ASTM A-242-T1 0.15 1.00 0.150 0.05 --- 0.20 --- --- --- 50 70 18 3 High strength for structures, posts and lighting poles. ASTM A-871-T-2 0.20 0.75-1.35 0.040 0.05 0.50 0.20-0.40 0.50 0.40-0.70 0.10 65 80 17 3 5

PLATE DIMENSIONAL RANGE / THICKNESS-WIDTH-LENGTH RELATION Size Range 1 Inches 56-60 61-64 65-68 69-72 73-76 77-80 81-84 85-88 89-92 93-96 97-107 108-120 0.187-0.230 480 480 480 480 480 480 480 --- --- --- --- --- 0.231-0.312 480 480 480 480 480 480 480 480 480 480 --- --- 0.313-0.374 480 480 480 480 480 480 480 480 480 480 --- --- 0.375-0.625 480 480 480 480 480 480 480 480 480 480 480 480 0.626-0.750 480 480 480 480 480 480 480 480 480 480 480 480 0.751-0.875 480 480 480 480 480 480 480 480 480 480 480 440 0.876-1.000 480 480 480 480 480 480 480 480 480 480 430 380 1.001-1.250 480 480 480 480 480 460 440 420 400 380 340 310 1.251-1.500 480 480 450 430 400 380 360 350 330 320 280 250 1.501-1.750 440 410 390 360 340 330 310 300 280 270 240 220 1.751-2.000 380 360 340 320 300 290 270 260 250 240 210 190 2.001-2.250 340 320 300 280 270 250 240 230 220 200 190 170 2.251-2.500 310 290 270 250 240 230 220 200 200 190 170 150 > 2.500 Contact the Hot Rolled Products Manager. Size Range 2 Inches 56-60 61-64 65-68 69-72 73-76 77-80 81-84 85-88 89-92 93-96 97-107 108-120 0.187-0.230 480 480 480 480 480 --- --- --- --- --- --- --- 0.231-0.250 480 480 480 480 480 480 480 --- --- --- --- --- 0.251-0.312 480 480 480 480 480 480 480 480 480 480 --- --- 0.313-0.343 480 480 480 480 480 480 480 480 480 480 --- --- 0.344-0.374 480 480 480 480 480 480 480 480 480 480 --- --- 0.375-0.437 480 480 480 480 480 480 480 480 480 480 480 --- 0.438-0.625 480 480 480 480 480 480 480 480 480 480 480 480 0.626-0.875 480 480 480 480 480 480 480 480 480 480 480 440 0.876-1.000 480 480 480 480 480 480 480 480 480 480 430 380 1.001-1.250 480 480 480 480 480 460 440 420 400 380 340 310 1.251-1.375 480 480 480 460 440 420 400 380 360 350 310 280 1.376-1.500 480 480 450 430 400 380 360 350 330 320 280 250 1.501-1.750 440 410 390 360 340 330 310 300 280 270 240 220 1.751-2.250 340 320 300 280 270 350 240 230 220 200 190 170 2.251-2.500 310 290 270 250 240 230 220 200 200 190 170 150 > 2.500 Contact the Hot Rolled Products Manager. Cut-to-length plate s maximum length is 500 and minimum is 150. 6

PLATE DIMENSIONAL RANGE / THICKNESS-WIDTH-LENGTH RELATION Size Range 3 Inches 56-60 61-64 65-68 69-72 73-76 77-80 81-84 85-88 89-92 93-96 97-107 108-120 0.312-0.343 480 480 480 480 480 480 480 480 480 480 --- --- 0.344-0.374 480 480 480 480 480 480 480 480 480 480 --- --- 0.375-0.437 480 480 480 480 480 480 480 480 480 480 480 --- 0.438-0.500 480 480 480 480 480 480 480 480 480 480 480 480 0.501-0.562 480 480 480 480 480 480 480 480 480 480 480 480 0.563-0.625 480 480 480 480 480 480 480 480 480 480 480 480 0.626-0.750 480 480 480 480 480 480 480 480 480 480 480 480 0.751-0.875 480 480 480 480 480 480 480 480 480 480 480 440 > 0.875 Contact the Hot Rolled Products Manager. Cut-to-length plate s maximum length is 500 and minimum is 150. 7

PLATE TOLERANCES (ACCORDING TO ASTM A-6) Thickness tolerances (upward) Permissible variation (downward) Specified thickness Width (inches) (inches) 56 to < 72 72 to < 84 84 to < 96 96 to < 108 108 to < 120 Up to < 1/4 0.03 0.03 0.03 0.03 0.03 From 1/4 to < 5/16 0.03 0.03 0.03 0.03 0.03 From 5/16 to < 3/8 0.03 0.03 0.03 0.03 0.03 From 3/8 to < 7/16 0.03 0.03 0.03 0.03 0.04 From 7/16 to < 1/2 0.03 0.03 0.03 0.03 0.04 From 1/2 to < 5/8 0.03 0.03 0.03 0.03 0.04 From 5/8 to < 3/4 0.03 0.03 0.03 0.04 0.04 From 3/4 to < 1 0.03 0.03 0.04 0.04 0.05 From 1 to < 2 0.06 0.06 0.06 0.07 0.08 0.010 (0.254 mm) Thickness is measured at 3/8" (9.5 mm) from the edge with a cut edge, and 3/4" (19.05 mm) with a mill edge. Specified thickness Width (millimeters) (millimeters) 1420 to < 1800 1800 to < 2100 2100 to < 2400 2400 to < 2700 2700 to < 3000 5 0.8 0.8 0.8 0.8 0.8 5.5 0.8 0.8 0.8 0.8 0.8 6 0.8 0.8 0.8 0.8 0.9 7 0.8 0.8 0.8 0.8 0.9 8 0.8 0.8 0.8 0.8 0.9 9 0.8 0.8 0.8 0.8 1.0 10 0.8 0.8 0.8 0.8 1.0 11 0.8 0.8 0.8 0.8 1.0 12 0.8 0.8 0.8 0.9 1.0 14 0.8 0.8 0.9 0.9 1.0 16 0.8 0.8 0.9 0.9 1.0 18 0.8 0.8 0.9 1.0 1.1 20 0.8 0.8 0.9 1.0 1.2 22 0.9 0.9 1.0 1.1 1.3 25 1.0 1.0 1.0 1.2 1.3 28 1.1 1.1 1.1 1.3 1.4 30 1.2 1.2 1.2 1.4 1.5 32 1.3 1.3 1.3 1.5 1.6 35 1.4 1.4 1.4 1.6 1.7 38 1.5 1.5 1.5 1.7 1.8 40 1.6 1.6 1.6 1.8 2.0 45 1.7 1.8 1.8 2.0 2.3 50 1.8 2.0 2.0 2.3 2.5 8

PLATE TOLERANCES Width and length permissible variations Specified dimension (inches) Upward width and length tolerances (inches) Up to < 3/8" 3/8" to < 5/8" 5/8" to < 1" 1" to 2" Width Length Width Length Width Length Width Length Width Length 56 to < 84 120 to < 240 1/2 3/4 5/8 7/8 3/4 1 7/8 1 1/4 84 to < 108 9/16 7/8 11/16 15/16 13/16 1 1/8 1 1 3/8 108 and up 5/8 1 3/4 1 1/8 7/8 1 1/4 1 1/8 1 3/8 56 to < 84 240 to < 360 1/2 1 5/8 1 1/8 3/4 1 1/4 7/8 1 1/2 84 to < 108 9/16 1 11/16 1 1/8 7/8 1 3/8 1 1 1/12 108 and up 11/16 1 1/8 7/8 1 1/4 1 1 3/8 1 1/4 1 3/4 56 to < 84 360 to < 480 1/2 1 1/4 5/8 1 3/8 3/4 1 1/2 7/8 1 5/8 84 to < 108 9/16 1 1/4 3/4 1 3/8 7/8 1 1/2 1 1 7/8 108 and up 3/4 1 3/8 7/8 1 1/2 1 1 5/8 1 1/4 1 7/8 Specified dimension Upward width and length tolerances (millimeters) (millimeters) Up to < 10.5 10.5 to < 16 16 to < 25 25 to < 50 Width Length Width Length Width Length Width Length Width Length 1420 to < 2100 3000 to < 6000 13 19 16 22 19 25 22 32 2100 to < 2700 14 22 18 24 21 29 25 35 2700 and up 16 25 19 29 22 32 29 35 1420 to < 2100 6000 to < 9000 13 25 16 29 19 32 22 38 2100 to < 2700 14 25 18 29 22 35 25 38 2700 and up 18 29 22 32 25 35 32 44 1420 to < 2700 9000 to < 12000 13 32 16 35 19 38 22 41 2100 to < 2700 13 32 19 35 22 38 25 48 2700 and up 19 35 22 38 25 41 32 48 Note: The downward specified width and length permissible is 1/4" (6.35 mm). 9

PLATE TOLERANCES Flatness permissible variations for carbon steel Specified thickness (inches) Width (inches) 56 to < 72 72 to < 84 84 to < 96 96 to < 108 108 to < 120 Up to < 1/4 1 1/4 1 3/8 1 1/2 --- --- 1/4 to < 3/8 15/16 1 1/8 1 1/4 --- --- 3/8 to < 1/2 5/8 3/4 7/8 1 1 1/8 1/2 to < 3/4 5/8 5/8 3/4 1 1 3/4 to < 1 5/8 5/8 5/8 3/4 7/8 1 to < 2 9/16 9/16 5/8 5/8 5/8 Specified thickness Width (millimeters) (millimeters) 1420 to < 1800 1800 to < 2100 2100 to < 2400 2400 to < 2700 2700 to < 3000 Up to < 6 32 35 38 --- --- 6 to < 10 24 29 32 --- --- 10 to < 12 16 19 22 25 29 12 to < 20 16 16 19 25 25 20 to < 25 16 16 16 19 22 25 to < 50 14 14 16 16 16 Flatness permissible variations for microalloy steel Specified thickness (inches) 56 to < 72 72 to < 84 Width (inches) 84 to < 96 96 to < 108 108 to < 120 Up to < 1/4 1 7/8 2 2 1/4 --- --- 1/4 to < 3/8 1 3/8 1 3/4 1 7/8 --- --- 3/8 to < 1/2 15/16 1 1/8 1 5/16 1 1/2 1 5/8 1/2 to < 3/4 7/8 1 1 1/8 1 1/4 1 3/8 3/4 to < 1 7/8 15/16 1 1 1/8 1 5/16 1 to < 2 13/16 7/8 15/16 1 1 Specified thickness Width (millimeters) (millimeters) 1420 to < 1800 1800 to < 2100 2100 to < 2400 2400 to < 2700 2700 to < 3000 Up to < 6 48 51 57 --- --- 6 to < 10 35 44 48 --- --- 10 to < 12 24 29 33 38 41 12 to < 20 22 25 29 32 35 20 to < 25 22 24 25 29 33 25 to < 50 21 22 24 25 25 Permissible variations in camber for cut-to-length plate, any thickness Maximum permissible camber in inches is calculated by dividing the plate s length in feet by 40. 10

LOW, MEDIUM AND HIGH CARBON STEEL HOT ROLLED COIL Characteristics Specification Chemical composition (maximum %) C Mn P S Si SAE 1006 0.08 0.45 0.030 0.035 --- 1 SAE 1008 0.10 0.50 0.030 0.035 --- 1 SAE 1010 0.08-0.13 0.30-0.60 0.030 0.035 --- 1 SAE 1012 0.10-0.15 0.30-0.60 0.030 0.035 --- 1 SAE 1015 0.12-0.18 0.30-0.60 0.030 0.035 --- 1 SAE 1018 0.14-0.20 0.60-0.90 0.030 0.035 --- 1 SAE 1020 0.17-0.23 0.60-0.90 0.030 0.035 --- 2 SAE 1025 0.22-0.28 0.30-0.60 0.030 0.035 0.35 2 SAE 1030 0.27-0.34 0.60-0.90 0.030 0.035 0.35 2 SAE 1035 0.31-0.38 0.60-0.90 0.030 0.035 0.35 2 SAE 1040 0.36-0.44 0.60-0.90 0.030 0.035 0.35 3 SAE 1045 0.42-0.50 0.60-0.90 0.030 0.035 0.35 3 SAE 1050 0.47-0.55 0.60-0.90 0.030 0.035 0.35 3 SAE 1055 0.52-0.60 0.60-0.90 0.030 0.035 0.35 3 SAE 1060 0.55-0.66 0.60-0.90 0.030 0.035 0.35 3 Agricultural tools. SAE 1065 (1) 0.59-0.70 0.60-0.90 0.030 0.035 0.35 3 Agricultural tools, knife blades and colters. SAE 1070 (1) 0.65-0.76 0.60-0.90 0.030 0.035 0.35 3 SAE 1074 (1) 0.69-0.80 0.50-0.80 0.030 0.035 0.35 3 Knife blades, colters, machetes. SAE 1075 (1) 0.69-0.80 0.40-0.70 0.030 0.035 0.35 3 SAE 1080 (1) 0.74-0.88 0.60-0.90 0.030 0.035 0.35 3 SAE 1085 (1) 0.80-0.90 0.70-1.00 0.030 0.035 0.35 3 Agricultural tools, plowing disks. 1085 MOD (1) 0.80-0.95 0.80-1.30 0.030 0.035 0.35 3 SAE 1552 0.55 1.50 0.030 0.035 0.35 5 Tempered parts. AHMSA 130 B 0.35 1.35 0.030 0.035 0.35 4 Tempered parts, plowing disks. 1) These grades are manufactured in a weight of 6 to 10 metric tons and in a width of up to 30. Size Range Typical applications Low carbon for drawing parts. Low carbon for commercial shapes, tubular and purlins. Medium carbon for structural parts. Machinery parts, tools. Tools, knife blades, wheelbarrows, shovels. Tools, frames, cold reduction. 11

HIGH FORMABILITY STEELS FOR AUTOMOTIVE PARTS HOT ROLLED COIL Characteristics Chemical composition Max Specification (maximum %) Yield Tensile elongation % test ness Size Fold hard- Typical applications Point Strength C Mn P S Cb (2 ) 180º HRB Range ASTM A-621 (3) 0.08 0.50 0.035 0.04 --- --- --- 34 0 T 65 1 Drawing quality, clutch. ASTM A-622 (3) 0.08 0.50 0.035 0.04 --- --- --- 36 0 T 65 1 Extra deep drawing quality, compressor frames. DIN 1614-STW22 (3) 0.08 0.50 0.035 0.04 --- 34 --- 32 0 T 65 1 Commercial/drawing quality for medium strength beams. DIN 1614-STW23 (3) 0.08 0.50 0.035 0.04 --- 31.2-46.0 43.0-59.0 34 0 T 65 1 Deep drawing, clutch. DIN 1614-STW24 (3) 0.08 0.50 0.035 0.04 --- 31.2-46.0 43.0-59.0 36 0 T 65 1 Extra deep drawing quality, compressor frames. 1008/1010 0.10 0.50 0.035 0.04 --- --- 36 32 0 T 65 1 Medium strength structural for beams. QS1010ZW 0.08 0.50 0.035 0.04 --- 31.2-46.0 43.0-59.0 36 0 T 65 1 Deep drawing for non-exposed automotive parts. QSTE380TM 0.15 1.50 0.035 0.04 0.050 50 70 22 2.0 T --- 3 High strength structural for break support. ASTM A-607-50 (3) 0.20 1.50 0.035 0.04 0.050 50 65 22 2.0 T --- 3 ASTM A-607-55 (3) 0.20 1.50 0.035 0.04 0.050 55 70 22 2.0 T --- 3 High strength for rings and centers of rims, frameworks. ASTM A-607-60 (3) 0.20 1.50 0.035 0.04 0.050 60 75 22 2.0 T --- 5 ASTM A-607-70 (3) 0.20 1.50 0.035 0.04 0.050 70 85 18 2.5 T --- 5 Extra high strength structural for beams and crossbars. AHMSA A-455 (4).20-.30 1.30 0.035 0.04 0.050 --- --- --- 2.5 T --- 3 Extra high strength structural for bracings and beams. SAE-1536.30-.38 0.90 0.035 0.04 --- --- --- --- --- --- 3 High strength structural for rear axle support. SAE J1392-050 X/Y 0.13 0.90 0.035 0.04 0.050 50 65 22 2.0 T --- 3 High strength structural for automotive parts. SAE J1392-080 X/Y 0.13 1.65 0.035 0.04 0.100 80 95 16 3.0 T --- 5 AHMSA-100L 0.18 2.00 0.035 0.04 0.100 100 114 15 3.5 T --- 5 Extra high strength structural for beams. AHMSA-110L 0.18 2.00 0.035 0.04 0.100 110 124 15 4.0 T --- 5 ASTM A 715-50 (3) 0.20 1.50 0.030 0.02 0.050 50 70 22 3 High strength for automotive use. 3) These grades are manufactured with a thickness of up to 0.2299. 4) These grades are manufactured starting at a thickness of 0.180. 12

STEEL FOR SHAPES AND STRUCTURES HOT ROLLED COIL Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cb V G 3101-SS-400 --- --- 0.050 0.050 --- --- --- 35.5 58 21 1.5 T 1 G 3131 SPHC --- --- 0.050 0.050 --- --- --- --- 39.1 31 0.5 T 1 G 3131 SPHE --- --- 0.030 0.035 --- --- --- --- 39.1 41 0.5 T 1 G 3132 SPHT1 0.10 0.50 0.040 0.040 0.35 --- --- --- 39.1 37 0.5 T 1 G 3132 SPHT2 0.18 0.60 0.040 0.040 0.35 --- --- --- 49.3 32 1.5 T 1 G 3132 SPHT3 0.25.30 -.90 0.040 0.040 0.35 -- --- --- 59.5 27 1.5 T 1 G 3132 SPHT4 0.30.30-1.0 0.040 0.040 0.35 --- --- --- 71 22 1.5 T 3 ASTM A-569 (3) 0.15 0.50 0.035 0.035 --- --- --- --- --- --- --- 1 ASTM A-570 30 (3) 0.25 0.90 0.035 0.040 --- --- --- 30 45 25 1 T 1 ASTM A-570 33 (3) 0.25 0.90 0.035 0.040 --- --- --- 33 50 23 1 T 1 ASTM A-283 A (4) 0.14 0.90 0.035 0.040 0.40 --- --- 24 45-60 30 --- 1 ASTM A-570 36 (3) 0.25 0.90 0.035 0.040 --- --- --- 36 53 22 1.5 T 1 ASTM A-570 40 (3) 0.25 0.90 0.035 0.040 --- --- --- 40 55 21 2 T 1 ASTM A-570 45 (3) 0.25 1.35 0.035 0.040 --- 0.050 --- 45 60 19 2 T 1 ASTM A-283 B (4) 0.17 0.90 0.035 0.040 0.40 --- --- 27 50-65 28 --- 1 ASTM A-283 C (4) 0.24 0.90 0.035 0.040 0.40 --- --- 30 55-75 25 --- 1 ASTM A-36 (4) 0.25 1.20 0.035 0.035 0.40 --- --- 36 58-80 21 --- 1 ASTM A-131-A (4) 0.23 1.35 0.035 0.040 --- --- --- 34 58-71 24 --- 2 ABS-A,B,D,E (4) 0.23 1.35 0.035 0.040 --- --- --- 34 58-71 24 --- 2 LLOYD S A (4) 0.20 1.35 0.035 0.040 --- --- --- 34 58-71 24 --- 2 ASTM A-131-AH-36 (4) 0.20 1.35 0.035 0.040 --- 0.050 0.10 51 71-90 22 --- 3 SAE 050-X 0.18 1.50 0.030 0.035 0.35 --- --- 50 65 20 --- 3 SAE 050-Y 0.18 1.50 0.030 0.035 0.35 --- --- 50 60 20 --- 3 ASTM A-570 50 (3) 0.25 1.35 0.035 0.040 --- 0.050 --- 50 65 17 2.5 T 3 ASTM A-570 55 (3) 0.25 1.35 0.035 0.040 --- 0.050 --- 55 70 15 3 T 3 ASTM A-572 50 (4) 0.23 1.50 0.035 0.040 0.40 0.050 --- 50 65 21 --- 3 ASTM A-572 60 (4) 0.26 1.50 0.035 0.040 0.40 0.050 0.06 60 70 18 --- 3 Yield Point Tensile elongation % Strength (2 ) ASTM A-572 65 (4) 0.26 1.50 0.035 0.040 0.40 0.050 0.06 65 80 17 --- 5 AHMSA-50 0.23 1.50 0.035 0.040 0.40 0.050 --- 50 65 22 --- 3 AHMSA-55 0.27 1.50 0.035 0.040 0.40 0.050 --- 55 70 22 --- 3 DIN/BS EN 10025 S235 0.18 0.90 0.035 0.040 0.40 --- --- 35 55 20 --- 1 Fold test 180º Size Range Typical applications General structures, construction. General manufacturing and drawing Welded structural pipe. Commercial steel for low strength moderate use. Low strength for parts with moderate drawing, commercial shapes, tubular and purlins. Low strength for structural shapes of moderate use. Medium strength, structures, tubular shapes and purlins. Medium strength for light structural parts. Low strength for structural parts and shapes of moderate use. Medium strength for structural parts and shapes of moderate use. Structural steel for shipbuilding. High strength structural steel for shipbuilding. Automotive parts, high strength low alloy. High strength for structural shapes. High strength for structural parts. High strength for posts, lighting poles and transmission towers. High strength for structures, posts and transmission towers. Low strength for structures of moderate use and high welding capacity. DIN/BS EN 10025 S275 0.18 1.50 0.035 0.040 0.40 --- --- 37 63 20 --- 1 DIN/BS EN 10025 S355 0.20 1.50 0.035 0.040 0.40 --- --- 51 71 18 --- 3 B 483 Gr. 39 0.21 1.50 0.035 0.040 0.40 0.050 --- 55 70 18 --- 3 ASTM A-656 Gr. 50 0.20 1.50 0.035 0.035 --- --- --- 50 70 20 --- 3 ASTM A-656 Gr. 60 0.20 1.50 0.035 0.035 --- --- --- 60 75 18 --- 3 ASTM A-656 Gr. 70 0.18 1.60 0.035 0.035 --- --- --- 70 80 16 --- 5 ASTM A-607-45 T2 (3) 0.20 1.35 0.030 0.020 0.35 --- 0.06 45 60 25 --- 1 High strength for structural use, column bases. High strength for structural use, bridge parts. High strength structural steel. High strength for structural shape. Extra high strength for structures where low weight is required. Medium and high strength for shapes and structural use. 3) These grades are manufactured in a thickness of up to 0.2299. 4) These grades are manufactured starting at a thickness of 0.180. 13

PRESSURE VESSEL STEEL HOT ROLLED COIL Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cb Yield Point Tensile Strength elongation % (2 ) ASTM/ASME SA-414-C (5) 0.25 0.90 0.035 0.035 --- --- 33 55-70 16 1 ASTM/ASME SA-285-C (4) 0.28 0.90 0.035 0.035 --- --- 33 55-75 23 1 ASTM/ASME SA-515-60 (1)(4) 0.27 0.90 0.035 0.040 --- --- 33 60-80 20 2 ASTM/ASME SA-516-60 (4) 0.27 0.90 0.035 0.040 --- --- 33 60-80 20 2 ASTM/ASME SA-414-G (5) 0.31 1.35 0.035 0.040 --- 0.020 45 75-95 10 3 NOM-EM-011-SEDG-1999 0.20 1.20 0.035 0.040 ---.005 mín. 41 61 25 3 DOT-3 0.20 1.20.035 0.040 ---.005 mín. 50 70 25 3 ASTM/ASME SA-455 (4) 0.33.85-1.20 0.035 0.040 0.40 0.200 45 75-95 15 3 Size Range Typical applications Low and medium tensile strength for stationary vessels. Medium tensile strength vessels for medium and high temperature service. Medium tensile strength vessels for medium and low temperature service. High tensile strength stationary vessels. Body and tops of high tensile strength portable vessels. High tensile strength stationary vessels. ASTM/ASME SA-516-70 (4) 0.31 1.20 0.035 0.040 --- --- 38 70-90 --- 3 Vessels for medium and low temperature service. ASTM/ASME SA-612 (4) 0.25 1.0-1.35 0.035 0.040.15-.40 0.020 --- 83-105 --- 3 Railroad tanks. AAR TC 128-B (4) 0.25 1.0-1.35 0.035 0.040.15-.40 0.020 --- 83-105 --- 3 ASTM/ASME A-515-70 (1) (4) 0.31 1.20 0.035 0.040 --- --- 38 70-90 --- 3 Medium and high temperature service. 1) These grades are manufactured in a weight of 6 to 10 tonnes and width of up to 39.5. 4) These grades are manufactured starting at a thickness of 0.0180 according to specification. 5) These grades are manufactured in a thickness of up to 0.270 according to specification. 14

PIPELINE, CASING, TUBING AND DRILLING PIPE STEEL HOT ROLLED COIL Characteristics Specification Chemical composition (maximum %) C Mn P S Cb V Mo API 5L-A 0.20 1.10 0.035 0.035 --- --- --- 30 60 35 1 Low strength pipeline. API 5L-B 0.20 1.15 0.035 0.040 --- --- --- 35 60 35 1 API 5L X-42 0.16 1.20 0.025 0.020 --- --- --- 42 61 35 1 ASTM A-252-C 0.20 1.10 0.035 0.040 --- --- --- 35 60 35 1 ASTM A-53-A 0.20 1.15 0.035 0.040 --- --- --- 30 60 35 1 ASTM A-53-B 0.20 1.15 0.035 0.040 --- --- --- 35 60 35 1 API 5L X-46 0.16 1.20 0.025 0.020 0.050 0.06 --- 46 62 35 3 API 5L X-52 0.15 1.35 0.025 0.020 0.050 0.06 --- 52 66 35 3 API 5L X-56 0.15 1.35 0.025 0.020 0.050 0.06 --- 56 68 33 3 API J-55 0.30 1.35 0.030 0.030 0.050 0.06 --- 55 70-90 33 3 Tubing and casing. API X-52-GA (2) 0.10 1.05 0.025 0.010 0.050 0.06 --- 52-68 66-80 33 3 High strength pipeline for sour gas conduction. API 5L X-60 0.15 1.50 0.025 0.020 0.050 0.06 --- 60 76 32 4 API 5L X-65 0.15 1.60 0.025 0.020 0.050 0.06 --- 65 78 30 5 High strength pipeline. API 5L X-70 0.15 1.60 0.025 0.020 0.050 0.06 --- 70 83 30 5 API 5L X-80 0.15 1.70 0.025 0.020 0.050 0.06 0.20 80 92 30 5 Extra high strength pipeline. API 5CT-N-80 0.35 1.50 0.025 0.020 0.050 0.06 --- --- --- -- 4 Tubing and casing. Yield Point Tensile Strength elongation % (2 ) API X-60-GA (2) 0.10 1.05 0.025 0.010 0.050 0.06 --- 60-75 --- 32 4 API X-65-GA (2) 0.10 1.05 0.025 0.010 0.050 0.06 0.20 68-80 80-92 30 5 Size Range Medium strength pipeline. Low strength pipeline. Medium strength pipeline. High strength pipeline. Typical applications High strength pipeline for sour gas conduction. 2) A feasibility study is always required for these steel grades due to special requirements. 15

ATMOSPHERIC CORROSION RESISTANT STEEL HOT ROLLED COIL Characteristics Specification Chemical composition (maximum %) C Mn P S Si Cu mín. Ni Cr V Yield Point Tensile Strength elongation % (2 ) Size Range Typical applications ASTM A-36-Cu (4) 0.28 1.20 0.035 0.035 0.40 0.20 --- --- --- 36 58-80 20 2 Medium strength for welded girders and bridges and building parts. ASTM A-588-B (4) 0.20.75-1.35 0.040 0.050 0.50 0.2-0.4 0.5 0.4-0.7 0.1 50 70-90 18 3 ASTM A-242-T-1 (4) 0.15 1.00 0.150 0.050 --- 0.20 --- --- --- 50 70 18 3 ASTM A-871-T-2 0.20.75-1.35 0.040 0.050 0.50 0.2-0.4 0.5 0.4-0.7 0.1 65 80 17 5 High strength for bridge, building and post parts. High strength for structures, posts and lighting poles. 4) These grades are manufactured starting at a thickness of 0.180. 16

HOT ROLLED COIL TOLERANCES Permissible variations in width for carbon and microalloy steels* Specified width Upward tolerance Specified width Upward tolerance (inches) (inches) (mm) (mm) 23 63.75-0 +1/2 584 1619-0 +12.713 Permissible variations in specified nominal thickness for carbon steels* Specified nominal thickness (inches) Specified width (inches).059 -.071.072 -.098.099 -.180.181 -.230.231 -.313.314 -.375.376 -.500 23-40 ± 0.0030 ± 0.0035 ± 0.0035 ± 0.0040 ± 0.0055 ± 0.0060 ± 0.0070 > 40-48 ± 0.0030 ± 0.0035 ± 0.0040 ± 0.0045 ± 0.0060 ± 0.0065 ± 0.0070 > 48-60 ± 0.0035 ± 0.0035 ± 0.0040 ± 0.0050 ± 0.0060 ± 0.0070 ± 0.0075 > 60-63.75 ± 0.0035 ± 0.0040 ± 0.0040 ± 0.0055 ± 0.0065 ± 0.0075 ± 0.0080 Specified width (millimeters) Specified nominal thickness (millimeters) 1.50-1.80 1.81-2.49 2.50-4.57 4.58-5.84 5.85-7.95 7.96-9.52 9.53-12.70 584-1016 ± 0.076 ± 0.089 ± 0.089 ± 0.102 ± 0.140 ± 0.152 ± 0.178 > 1016-1219 ± 0.076 ± 0.089 ± 0.102 ± 0.114 ± 0.152 ± 0.165 ± 0.178 > 1219-1524 ± 0.089 ± 0.089 ± 0.102 ± 0.127 ± 0.152 ± 0.178 ± 0.191 > 1524-1619 ± 0.089 ± 0.102 ± 0.102 ± 0.140 ± 0.165 ± 0.191 ± 0.203 Permissible variations in specified nominal thickness for microalloy steels* Specified width Specified nominal thickness (inches) (inches).059 -.082.083 -.096.097 -.180.181 -.230.231 -.313.314 -.375.376 -.500 23-40 ± 0.0035 ± 0.0040 ± 0.0040 ± 0.0045 ± 0.0060 ± 0.0065 ± 0.0075 > 40-48 ± 0.0035 ± 0.0040 ± 0.0050 ± 0.0050 ± 0.0065 ± 0.0070 ± 0.0075 > 48-60 ± 0.0035 ± 0.0040 ± 0.0050 ± 0.0055 ± 0.0065 ± 0.0075 ± 0.0080 > 60-63.75 ± 0.0040 ± 0.0045 ± 0.0055 ± 0.0060 ± 0.0070 ± 0.0080 ± 0.0085 Specified width (millimeters) Specified nominal thickness (millimeters) 1.50-2.00 2.01-2.44 2.45-4.57 4.58-5.84 5.85-7.95 7.96-9.50 9.51 12.7 584-1016 ± 0.089 ± 0.102 ± 0.102 ± 0.114 ± 0.152 ± 0.165 ± 0.191 > 1016-1219 ± 0.089 ± 0.102 ± 0.127 ± 0.127 ± 0.165 ± 0.178 ± 0.191 > 1219-1524 ± 0.089 ± 0.102 ± 0.127 ± 0.140 ± 0.165 ± 0.191 ± 0.203 > 1524-1619 ± 0.102 ± 0.114 ± 0.140 ± 0.152 ± 0.178 ± 0.203 ± 0.216 Applicable in 98% of coil s length. * Note: Tolerances in tickness are 50% of ASTM A-568/A-635 requirements. 17

HOT ROLLED COIL TOLERANCES Permissible variations in camber Inches: 1/2" in any 20 feet. Millimeters: 12.5 mm in any 6000 mm. Permissible variations in coil internal nominal diameter ± 5% (± 1.5" if nominal diameter is 30"). Permissible variations in crown 0.004" for all thicknesses and widths. Permissible variations in ondulation Maximum 2 waves of 3/4" tall in any 3.3 ft long. The coil s weight could vary from 8 to 20 metric tons depending on the coil s width. Coiling quality permissible variations Inches Millimeters Internal telescope 2 50 External telescope 2 50 Dealignment 1 25 18

HOT ROLLED COIL DIMENSIONAL RANGES Size Range 1 0.500 584 610 711 813 914 1016 1117 1219 1320 1422 1524 1625 mm 12.70 0.400 10.16 Width Thickness Inches Millimeters Inches Millimeters 23-38 584-965 0.059-0.500 1.50-12.7 > 38-48 > 965-1219 0.070-0.500 1.78-12.7 > 48-52 > 1219-1321 0.080-0.500 2.03-12.7 > 52-63.750 > 1321-1619 0.175-0.500 4.45-12.7 T H I C K N E S S 0.300 0.200 0.180 0.160 0.140 0.120 0.100 0.080 0.060 7.62 5.08 4.57 4.06 3.55 3.04 2.54 2.03 1.52 Note: 0.059-0.069 (1.5 mm - 1.75 mm) thickness is manufactured in SAE 1008 steel grade and for those with lower carbon content. 0.040 1.01 In. 23 24 28 32 36 40 44 48 52 56 60 64 W I D T H Size Range 2 0.500 584 610 711 813 914 1016 1117 1219 1320 1422 1524 1625 mm 12.70 0.400 10.16 Width Thickness Inches Millimeters Inches Millimeters 23-36 584-914 0.070-0.500 1.78-12.7 > 36-45 > 914-1143 0.075-0.500 1.91-12.7 > 45-50 > 1143-1270 0.080-0.500 2.03-12.7 > 50-63.750 > 1270-1619 0.175-0.500 4.45-12.7 T H I C K N E S S 0.300 0.200 0.180 0.160 0.140 0.120 0.100 0.080 0.060 7.62 5.08 4.57 4.06 3.55 3.04 2.54 2.03 1.52 0.040 1.01 In. 23 24 28 32 36 40 44 48 52 56 60 64 W I D T H Size Range 3 0.500 584 610 711 813 914 1016 1117 1219 1320 1422 1524 1625 mm 12.70 0.400 10.16 Width Thickness Inches Millimeters Inches Millimeters 23-36 584-914 0.070-0.500 1.78-12.7 > 36-44 > 914-1117 0.090-0.500 2.29-12.7 > 44-50 > 1117-1270 0.120-0.500 3.05-12.7 > 50-63.750 > 1270-1619 0.175-0.500 4.45-12.7 T H I C K N E S S 0.300 0.200 0.180 0.160 0.140 0.120 0.100 0.080 0.060 7.62 5.08 4.57 4.06 3.55 3.04 2.54 2.03 1.52 0.040 1.01 In. 23 24 28 32 36 40 44 48 52 56 60 64 W I D T H 19

HOT ROLLED COIL DIMENSIONAL RANGES Size Range 4 0.500 584 610 711 813 914 1016 1117 1219 1320 1422 1524 1625 mm 12.70 0.400 10.16 Width Thickness Inches Millimeters Inches Millimeters 23-36 584-914 0.090-0.500 2.29-12.7 > 36-42 > 914-1067 0.105-0.500 2.67-12.7 > 42-46 > 1067-1168 0.120-0.500 3.05-12.7 > 46-48 > 1168-1219 0.154-0.500 3.91-12.7 > 48-55 > 1219-1397 0.188-0.500 4.78-12.7 > 55-63.750 > 1397-1619 0.250-0.375 6.35-10.97 T H I C K N E S S 0.300 0.200 0.180 0.160 0.140 0.120 0.100 0.080 0.060 0.040 7.62 5.08 4.57 4.06 3.55 3.04 2.54 2.03 1.52 1.01 In. 23 24 28 32 36 40 44 48 52 56 60 64 W I D T H Size Range 5 0.500 584 610 711 813 914 1016 1117 1219 1320 1422 1524 1625 mm 12.70 0.400 10.16 Width Thickness Inches Millimeters Inches Millimeters 23-36 584-914 0.105-0.500 2.67-12.7 > 36-42 > 914-1067 0.120-0.500 3.05-12.7 > 42-46 > 1067-1168 0.134-0.500 3.40-12.7 > 46-48 > 1168-1219 0.188-0.500 4.78-12.7 > 48-55 > 1219-1397 0.250-0.500 6.35-12.7 > 55-63.750 > 1397-1619 0.250-0.375 6.35-10.97 T H I C K N E S S 0.300 0.200 0.180 0.160 0.140 0.120 0.100 0.080 0.060 0.040 7.62 5.08 4.57 4.06 3.55 3.04 2.54 2.03 1.52 1.01 In. 23 24 28 32 36 40 44 48 52 56 60 64 W I D T H 20

SKIN PASS HOT ROLLED COIL AHMSA s hot rolled coil can be processed into the Skin Pass mill within the following ranges: Characteristics Thickness 0.059-0.300 Width 23 to 63.750 Internal diameter 30 Maximum weight 20 metric tons. Steel grade Low and high carbon; low, medium and high strength (elasticity limit of up to 50 Ksi). Flatness 10 I units guaranteed (same at 1/8 max. in any 3.3 ft). PICKLING Pickling can be applied to hot rolled coils with a cut or mill edge 1 (up to 0.250 of thickness), with or without oil according to the following general ranges: Range imum Maximum MILL EDGE Inches Millimeters Inches Millimeters Thickness 0.059 1.50 0.500 12.7 Width 29 737 60 1524 Internal Diameter (2) 20 508 24 610 1) Cut edge only for carbon steels up to 1020 or with a 50 Ksi elasticity limit. 2) Internal diameter of 24 for thicknesses equal or greater than 1/4 and 20 for thicknesses below 1/4. Widths under 29 are offered as mill edges. Sheets with lengths from 24 to 240 can be delivered. Range imum Maximum CUT EDGE (1) Inches Millimeters Inches Millimeters Thickness 0.060 1.22 0.250 6.3 Width 24 609 60 1524 Internal Diameter (2) 20 508 20 508 Sheet length 24 610 240 6096 Cut edge tolerance 0 0 + 1/8 3.175 FLOOR PLATE Floor plate is produced in accordance to ASTM A-786. It is manufactured in the following grades: SAE 1008 and 1010, and ASTM A-36*. * Please inquire our Hot Rolled Products Manager for other steel grades and ranges. (contact information on last page). Thickness Width 0.074 36 0.104 36 and 48 0.125 36 and 48 0.187 36 and 48 0.250 36 and 48 0.375 36 and 48 Maximum coil weight: 15 metric tons. Range and shape tolerances according to ASTM A-568 (for thickness up to 0.179 ) and A-635 (for thickness from 0.180 up to 0.375 ). Our draw pattern is very similar to pattern Nº 5, figure 3 of ASTM A-786 specification.

Any specification not included in this catalogue will be in accordance to the latest edition of the ASTM Specification. To request a special grade or specification not found in this catalogue, please contact our Hot Rolled Products Manager Telephone +52 (86) 49-34-00 Ext. 3432, 3433 and 3442. Fax +52 (86) 49-20-64 and 49-20-66. technicalservice@ahmsa.com service@ahmsa.com sales@ahmsa.com This catalogue is valid up to December 31, 2000 www.ahmsa.com