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1 Kobe Steel s

As a basic industrial material, Kobe Steel s support the transition to higher grades in Hot-rolled steel sheets are extensively used in many applications such as automobiles, electronics, building

2 As a basic industrial material, Kobe Steel s support the transition to higher grades in Hot-rolled steel sheets are extensively used in many applications such as automobiles, electronics, building materials, containers and welded steel tubes. As these products have become more sophisticated and upmarket in recent years, hot-rolled steel sheets are expected to satisfy higher quality requirements. Under stringent quality control, Kobe Steel uses its excellent facilities to manufacture hot-rolled steel sheets that meet the requirements of customers and have many different features. Through our tireless efforts in research and development, we will remain committed to the advancement of new products and manufacturing technologies. Your continued support and patronage is appreciated. Table of Contents Manufacturing process Product items Main applications Manufacturing standards Feasible range of production Dimension tolerance Packing and sticker indication Order guide and contact

3 hot-rolled steel sheets the modern age Characteristics 1. Good and consistent quality Our hot-rolled steel sheets are manufactured with excellent facilities and technologies and undergo thorough quality control throughout the process, from raw materials to the final product. 2. Rich variety Soft steel sheets, high-tensile strength steel sheets and other product items are available in many different standards and are suitable for a variety of applications. They come in a wide range of sizes, from 1.2 mm to 25.4 mm in thickness and from 6 mm to 2,8 mm in width. 3. Excellent products After the introduction of the latest equipment and based on excellent technological strength, we manufacture crown control mills, edge heaters, controlled cooling systems and other products with excellent surface quality, shape and workability. 4. Timely technical service Contact our sales and technical service divisions for advice on the use of our hot-rolled steel sheets. We will closely work with customers to provide technical service in a timely manner. 1

4 Manufacturing process Ironmaking and steelmaking process Sintering furnace Iron ore Pelletizing plant Coal Limestone Coke oven Blast furnace Torpedo car Pre-treatment of molten iron Converter Ladle refining Converter Blast furnace Continuous casting facility (outlet side) 2

Hot rolling process Degassing treatment Continuous casting facility Slab Sizing press Roughing mill Finishing mill Cooling

Cut sheet (Mill scale or pickling) Hot strip mill Sheet thickness mm Width mm Inside diameter mm Outside diameter mm

7 6 24 (trim) 914/136 Slitter line Sheet thickness mm Width mm Inside diameter mm Outside diameter mm 1.2 12.

5 Hot rolling process Degassing treatment Continuous casting facility Slab Sizing press Roughing mill Finishing mill Cooling Temper rolling mill Coil (Mill scale or pickling) Continuous pickling line Slitter Slit coil (Mill scale or pickling) Shear Cut sheet (Mill scale or pickling) Hot strip mill Sheet thickness mm Width mm Inside diameter mm Outside diameter mm Individual weight ton Max21 Max43 Shearing line Sheet thickness mm Width mm Length mm (trim) 914/136 Slitter line Sheet thickness mm Width mm Inside diameter mm Outside diameter mm Min1 58/61/762 Max21 Continuous pickling line Sheet thickness mm Width mm Inside diameter mm Outside diameter mm Individual weight ton /762 Max21 Max38 3

6 Product items Standard Title Code of type Applicable thickness (mm) Applications JIS G 3131 Hot-rolled soft steel sheet/strip SPHC General use 1.2 or more, but no more than 14 SPHD tolerance SPHE 1.2 or more, but no more than 8 Deep drawing SPHF 1.4 or more, but no more than 8 Special killed treatment for deep drawing JIS G 3132 Hot-rolled carbon steel strip for steel tubes SPHT1 SPHT2 SPHT3 SPHT4 1.2 or more, but no more than or more, but no more than 13 Hot-rolled carbon steel strip for welded steel tubes SAPH31 JIS G 3113 Hot-rolled steel sheet/strip for automobile structure SAPH37 SAPH4 1.6 or more, but no more than 14 Hot-rolled steel sheets and strips for workable structure, mainly used in automobiles SAPH44 JIS G 3134 Workable, hot-rolled hightensile steel sheet/strip for automobiles SPFH49 SPFH54 SPFH or more, but no more than 6 Workable, hot-rolled high-tensile strength steel sheets and strips, mainly used in automobiles JIS G 311 Rolled steel material for general structure SS or more, but no more than 25.4 SS4 SS or more, but no more than 16 Hot-rolled steel material for use in bridges, ships, vehicles and other general structures SS or more, but no more than 1 SM4 A/B/C 1.2 or more, but no more than 16 JIS G 316 Rolled steel material for welded structures SM49 A/B/C 1.4 or more, but no more than 16 SM49Y A/B 1.4 or more, but no more than 12 SM52 B/C Hot-rolled steel materials for use in bridges, ships, vehicles and other structures and have particularly excellent weldability SM or more, but no more than 1 JIS G 3116 Steel sheets and strips for high-pressure gas containers SG255 SG295 SG or more, but no more than 6 Hot-rolled steel sheets and strips for use in a welded container with a capacity of 5 liters or fewer and is designed to store LP gas, acetylene and other types of high-pressure gas KOBELCO standard Hot-rolled high-tensile strength steel sheets (General processing) Hot-rolled high-tensile strength steel sheets (Strong processing) KBHF or more, but no more than 9 KBHF54 KBHF or more, but no more than 6 KBHF69 KBHF49B KBHF54B 1.6 or more, but no more than 6 KBHF59B KBHF78B 1.8 or more, but no more than 4.5 Precipitation-hardening, hot-rolled high-tensile strength steel sheets with high strength and are suitable for bending Hot-rolled high-tensile strength steel sheets with a combined reinforcement type and have an excellent balance between strength and elongation, particularly in stretch flange formability KOBELCO standard Checkered steel sheet KCP KCP-SS4 2.3 or more, but no more than 12.7 Steel sheets with Kobe Steel s unique and beautiful checkered pattern and have excellent slip prevention effects and drainage properties 4

7 Main applications Kobe Steel s hot-rolled steel sheets have incredible features and can be adapted to diverse applications to satisfy the needs in many different industries such as automobiles, electronics, building materials, containers and welded steel tubes. Column Crane Pipe Cylinders Mechanical panel Checkered steel sheet 5

8 Manufacturing standards Hot-rolled soft steel sheet/strip (JIS G3131) Chemical components (%) Code of type C Mn P S Tensile strength 1.2 or more, but less than or more, but less than 2. SPHC.15 or less.6 or less.5 or less.5 or less 27 or more 27 or more 29 or more SPHD.1 or less.5 or less.4 or less.4 or less 27 or more 3 or more 32 or more SPHE.1 or less.5 or less.3 or less.35 or less 27 or more 31 or more 33 or more SPHF.8 or less.5 or less.25 or less.25 or less 27 or more 37 or more 38 or more Hot-rolled carbon steel strip for steel tubes (JIS G3132) Chemical components (%) Code of type C Si Mn P S Tensile strength 1.2 or more, but less than 1.6 SPHT1.1 or less.35 or less.5 or less.4 or less.4 or less 27 or more 3 or more SPHT2.18 or less.35 or less.6 or less.4 or less.4 or less 34 or more 25 or more SPHT3.25 or less.35 or less.3 to.9.4 or less.4 or less 41 or more 2 or more SPHT4.3 or less.35 or less.3 to 1..4 or less.4 or less 49 or more 15 or more Hot-rolled steel sheet/strip for automobile structure (JIS G3113) Chemical components (%) Tensile SAPH31 Code of type P S Tensile strength Thinner than 6 mm Yield point 6 mm or thicker and thinner than 8 mm 8 mm or thicker and 14 mm or thinner 1.6 or more, but less than or more (185) or more (185) or more (175) or more 33 or more SAPH37 37 or more 225 or more 225 or more 215 or more 32 or more.4 or less.4 or less SAPH4 4 or more 255 or more 235 or more 235 or more 31 or more SAPH44 44 or more 35 or more 295 or more 275 or more 29 or more Workable, hot-rolled high-tensile strength steel sheet/strip for automobiles (JIS G3134) Code of type Tensile strength Yield point or Yield strength 1.6 or more, but less than 2. Tensile testing 2. or more, but less than 2.5 Elongation (%) (mm) 2.5 or more, but less than 3.25 SPFH49 49 or more 325 or more 22 or more 23 or more 24 or more SPFH54 54 or more 355 or more 21 or more 22 or more 23 or more SPFH59 59 or more 42 or more 19 or more 2 or more 21 or more 6

9 2. or more, but less than 2.5 Tensile testing Elongation (%) (mm) 2.5 or more, but less than or more, but less than or more 29 or more 29 or more 31 or more 31 or more Test piece (JIS) Bending angle Thinner than 3.2 mm Bending test Bending property Inner radius 3.2 mm or thicker 18 Adhesion.5 times the thickness 33 or more 35 or more 37 or more 39 or more Direction of rolling of test 35 or more 37 or more 39 or more 41 or more piece # or more 39 or more 4 or more 42 or more Test piece (JIS) Direction of rolling of test piece #3 Tensile testing 1.6 or more, but less than 3. Elongation (%) (mm) 3. or more, but less than or more, but no more than or more 35 or more 37 or more Test piece (JIS) Bending angle 3. mm or thinner Bending test Bending property Inner radius Thicker than 3. mm and 13 mm or thinner 18 Adhesion.5 times the thickness 27 or more 3 or more 32 or more Direction of times the thickness 1.5 times the thickness rolling of test 22 or more 25 or more 27 or more piece # times the thickness 2. times the thickness 18 or more 2 or more 22 or more times the thickness 2. times the thickness Test piece (JIS) Direction of rolling of test piece #3 testing 2. or more, but less than or more, but less than 3.15 Elongation (%) (mm) 3.15 or more, but less than or more, but less than 6.3 Bending test Bending property Test piece Inner radius (JIS) Bending angle 6.3 or more Thinner than 2. mm 2. mm or thicker Test piece (JIS) 34 or more 36 or more 38 or more 4 or more 41 or more 18 Adhesion 1. times the thickness Orthogonal in 33 or more 35 or more 36 or more 37 or more 38 or more Direction of 18.5 times the thickness 1. times the thickness the direction of rolling of test 32 or more 34 or more 35 or more 36 or more 37 or more rolling of test piece # times the thickness 1. times the thickness piece #3 3 or more 32 or more 33 or more 34 or more 35 or more times the thickness 1.5 times the thickness 3.25 or more, but no more than 6. Test piece (JIS) Bending angle Bending property 1.6 mm or thicker and thinner than 3.25 mm Bending test Inner radius 3.25 mm or thicker and 6. mm or thinner 25 or more Orthogonal in the 18.5 times the thickness 1. times the thickness 24 or more direction of rolling times the thickness 1.5 times the thickness 22 or more of test piece # times the thickness 1.5 times the thickness Test piece (JIS) Orthogonal in the direction of rolling of test piece #3 7

10 Manufacturing standards Rolled steel material for general structure (JIS G311) Chemical components (%) Code of type C Mn P S Tensile strength SS or less.5 or less 33 to 43 SS or less.5 or less 4 to 51 SS or less.5 or less 49 to 61 SS54.3 or less 1.6 or less.4 or less.4 or less 54 or more Rolled steel material for welded structures (JIS G316) Chemical components (%) Code of type C Si Mn P SM4A.23 or less C or more (Note 1).35 or less SM4B.2 or less.35 or less.6 to or less SM4C.18 or less.35 or less 1.4 or less.35 or less SM49A.2 or less.55 or less 1.6 or less.35 or less SM49B SM49C SM49YA.18 or less.55 or less 1.6 or less.35 or less SM49YB SM52B.2 or less.55 or less 1.6 or less.35 or less SM52C.2 or less.55 or less 1.6 or less.35 or less SM57.18 or less.55 or less 1.6 or less.35 or less Note 1) Molten steel analysis values apply to the values in column C. Steel sheets and strips for high-pressure gas containers (JIS G3116) Code of type Chemical components (%) C Si Mn P S Tensile strength SG255.2 or less -.3 or more.3 or less.3 or less 4 or more SG295.2 or less.35 or less 1. or less.3 or less.3 or less 44 or more SG325.2 or less.55 or less 1.5 or less.3 or less.3 or less 49 or more 8

11 Yield point or Yield strength Tensile testing Elongation (%) Test piece #5 Test piece #1A Bending property Bending test 5 mm or thinner Thicker than 5 mm and 16 mm or thinner Bending angle Inner radius 25 or more 26 or more 21 or more 18.5 times the thickness 245 or more 21 or more 17 or more times the thickness 285 or more 19 or more 15 or more times the thickness 4 or more 16 or more 13 or more times the thickness Test piece (JIS) #1 S.35 or less.35 or less.35 or less.35 or less.35 or less Tensile strength Yield point or Yield strength Tensile testing Elongation (%) Test piece #5 Test piece #1A 5 mm or thinner Thicker than 5 mm and 16 mm or thinner 4 to or more 23 or more 18 or more 49 to or more 22 or more 17 or more.35 or less 49 to or more 19 or more 15 or more.35 or less 52 to or more 19 or more 15 or more.35 or less 57 to or more 19 or more - Yield point or Yield strength Tensile testing Bending test Elongation (%) Test piece Bending property 6. mm or thinner (JIS) Bending angle Inner radius Test piece (JIS) 255 or more 28 or more times the thickness 295 or more 26 or more Direction of rolling of test piece # times the thickness 325 or more 22 or more times the thickness Direction of rolling of test piece #3 9

12 Manufacturing standards (KOBELCO standards) Hot-rolled high-tensile strength steel sheets (KOBELCO standard) Type Code of type Tensile strength General processing Strong processing Yield point or Yield strength 1.6 or more, but less than 2. KBHF49 49 or more 325 or more 22 or more KBHF54 54 or more 355 or more 21 or more KBHF59 59 or more 42 or more 19 or more KBHF69 69 or more 52 or more 15 or more KBHF49B 49 or more 325 or more 22 or more KBHF54B 54 or more 355 or more 21 or more KBHF59B 59 or more 42 or more 19 or more KBHF78B 78 or more 55 or more 13 or more Checkered steel sheet (KOBELCO standard) Type Code of type Chemical components (%) P S Tensile strength Yield point Tensile testing Elongation (%) Test piece #5 Test piece #1A 5. mm or thinner Thicker than 5. mm and 12. mm or thinner General use KCP General structure KCP-SS4.5 or less.5 or less 4 to or more 21 or more 17 or more Remarks 1. KCP does not specify mechanical properties. Its tensile strength is usually 275 N/mm 2 (28 kgf/mm 2 ) or greater. 2. KCP-SS4 only guarantees tensile strength. The yield point and elongation of KCP-SS4 should be considered as reference values. 3. Mechanical property is the value determined with a test piece whose checkered part has been removed. Feasible dimensions and weight (Unit: kg) Sheet thickness (mm) Types Weight per steel sheet (W2) Maximum weight per coil Unit mass (W1) (kg/m 2 ) Sheet width length Designation (ft) l 1219 l 1524 l sheet width 4-sheet width 5-sheet width Remarks 1. Dimensions other than those described above may also be available upon request. 2. Unit weight (W1) is calculated with the following formula. W1 =7.85 t (kg/m 2 ) t = of a checkered steel sheet (mm) The weight of a steel sheet (W2) is calculated with the following formula. W2 =W1 A A =Area of checkered steel sheet (m 2 ) 3. Inside diameter and maximum outside diameter of a steel strip are assumed to be nearly 76 mm and 2,1 mm, respectively. 1

Tensile testing Elongation (%) (mm) 2. or more, but less than 2.5 2.5 or more, but less than 3.25 3.25 or more, but no more than 6.

13 Tensile testing Elongation (%) (mm) 2. or more, but less than or more, but less than or more, but no more than or more 24 or more 25 or more 22 or more 23 or more 24 or more 2 or more 21 or more 22 or more 16 or more 17 or more 18 or more 23 or more 24 or more 25 or more 22 or more 23 or more 24 or more 2 or more 21 or more 22 or more 14 or more 15 or more 16 or more Test piece (JIS) Orthogonal in the direction of rolling of test piece #5 Appearance, shape and dimensions A A cross section t 11

14 Feasible range of production Hot-rolled steel sheet Tensile strength : N/mm 2 level (mm) Sheet width (mm) Applicable standards : SPHC, SPHD, SPHE, SS33, SAPH31, SAPH37, SPHT1, SPHT2 Tensile strength : 4 44 N/mm 2 level (mm) Upper limit of thickness of a 4 N/mm 2 level pickling sheet Upper limit of thickness of a 44 N/mm 2 level pickling sheet Sheet width (mm) Applicable standards : SS4, SM4A / B / C, SAPH4, SAPH44, SG255, SG295, SPHT3 12

15 Tensile strength : N/mm 2 level The white line represents the feasible upper limit of thickness of a pickling material. Please contact us about the range marked with. (mm) Upper limit of thickness of a 49 N/mm 2 level pickling sheet Upper limit of thickness of a 54 N/mm 2 level pickling sheet Sheet width (mm) Applicable standards : SS49 / 54, SM49 A / B / C, SM49Y A / B, SM52 B / C, SM57, SG325, SPHT4, SPFH49 / 54, KBHF49 / 54, KBHF49B / 54B Tensile strength : 59 N/mm 2 level (mm) Applicable standards : SPFH59, KBHB59, KBHF59B Sheet width (mm) 13

16 Feasible range of production Hot-rolled steel sheet Tensile strength : N/mm 2 level The white line represents the feasible upper limit of thickness of a pickling material. Please contact us about the range marked with. (mm) Upper limit of thickness of a 69 N/mm 2 level pickling sheet Upper limit of thickness of a 78 N/mm 2 level pickling sheet Applicable standards : KBHB69, KBHB78B Sheet width (mm) Checkered steel sheet Tensile strength : 27 4 N/mm 2 level (mm) Applicable standards : KCP, KCP-SS4 Sheet width (mm) 14

17 Dimension tolerance 1 tolerance Hot-rolled soft steel sheet/strip (JIS G3131) Width Less than or more, but less than or more, but less than or more, but no more than 28 Less than 1.6 ±.14 ±.15 ±.16 (Note 1) or more, but less than 2. ±.16 ±.17 ±.18 ±.21 (Note 2) 2. or more, but less than 2.5 ±.17 ±.19 ±.21 ±.25 (Note 2) 2.5 or more, but less than 3.15 ±.19 ±.21 ±.24 ± or more, but less than 4. ±.21 ±.23 ±.26 ± or more, but less than 5. ±.24 ±.26 ±.28 ± or more, but less than 6. ±.26 ±.28 ±.29 ± or more, but less than 8. ±.29 ±.3 ±.31 ± or more, but less than 1. ±.32 ±.33 ±.34 ±.4 1. or more, but less than 12.5 ±.35 ±.36 ±.37 ± or more, but no more than 14. ±.38 ±.39 ±.4 ±.5 (Unit: mm) Note 1 ) Note 2 ) Remarks Applicable to a steel sheet/strip with a width less than 1,6 mm Applicable to a steel sheet/strip with a width less than 2, mm 1. is determined at an arbitrary point located 2 mm or more inward from the edge. 2. Inapplicable to the irregular parts at both ends of a steel strip Hot-rolled carbon steel strip for steel tubes (JIS G3132) Applicable to SPHT1, SPHT2 and SPHT3 Width Less than or more, but less than 15 Less than 1.6 ±.14 ± or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but no more than or more, but less than 18 ±.16 (Note 1) ±.16 ±.17 ±.18 ±.17 ±.19 ±.21 (Unit: mm) 18 or more, but no more than 28 - ±.21 (Note 2) ±.25 (Note 2) ±.19 ±.21 ±.24 ±.26 ±.21 ±.23 ±.26 ±.27 ±.24 ±.26 ±.28 ±.29 ±.26 ±.28 ±.29 ±.31 ±.29 ±.3 ±.31 ±.35 ±.32 ±.33 ±.34 ±.4 ±.35 ±.36 ±.37 ±.45 ±.38 ±.39 ±.4 ±.5 Applicable to SPHT4 Width Less than or more, but less than 15 Less than 1.6 ±.14 ± or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but less than or more, but no more than or more, but less than 18 ±.16 (Note 1) 18 or more, but no more than 28 ±.16 ±.19 ±.2 - ±.18 ±.22 ±.23 (Unit: mm) - ±.25 (Note 2) ±.2 ±.24 ±.26 ±.29 ±.23 ±.26 ±.28 ±.3 ±.26 ±.29 ±.31 ±.32 ±.29 ±.31 ±.32 ±.34 ±.32 ±.33 ±.34 ±.38 ±.35 ±.36 ±.37 ±.44 ±.38 ±.4 ±.41 ±.49 ±.41 ±.44 ±.45 ±.54 Note 1 ) Note 2 ) Remarks Applicable to a steel sheet/strip with a width less than 1,6 mm Applicable to a steel sheet/strip with a width less than 2, mm 1. is determined at an arbitrary point located 2 mm or more inward from the edge. 2. Inapplicable to the irregular parts at both ends of a steel strip 15

18 Dimension tolerance Hot-rolled steel sheet/strip for automobile structure (JIS G3113) Width Less than or more, but less than or more, but less than or more, but no more than or more, but less than 2. ±.16 ±.17 ± or more, but less than 2.5 ±.17 ±.19 ± or more, but less than 3.15 ±.19 ±.21 ± or more, but less than 4. ±.21 ±.23 ± or more, but less than 5. ±.24 ±.26 ±.28 ± or more, but less than 6. ±.26 ±.28 ±.29 ± or more, but less than 8. ±.29 ±.3 ±.31 ± or more, but less than 1. ±.32 ±.33 ±.34 ±.4 1. or more, but less than 12.5 ±.35 ±.36 ±.37 ± or more, but no more than 14. ±.38 ±.39 ±.4 ±.5 Remarks 1. The thickness measurement point is as per JIS G Inapplicable to the irregular parts at both ends of a steel strip (Unit: mm) Workable, hot-rolled high-tensile strength steel sheet/strip for automobiles (JIS G3134) Width Less than or more, but less than or more, but less than or more, but no more than or more, but less than 2. ±.16 ±.19 ±.2 (Note 1) - 2. or more, but less than 2.5 ±.18 ±.22 ±.23 (Note 1) or more, but less than 3.15 ±.2 ±.24 ±.26 (Note 1) or more, but less than 4. ±.23 ±.26 ±.28 ±.3 4. or more, but less than 5. ±.26 ±.29 ±.31 ± or more, but less than 6. ±.29 ±.31 ±.32 ± ±.32 ±.33 ±.34 ±.38 (Unit: mm) Note 1 ) Remarks Applicable to a steel sheet/strip with a width less than 1,6 mm 1. The thickness measurement point is as per JIS G3193 (shape, dimensions and mass of a hot-rolled steel sheet/strip and their tolerance). 2. Inapplicable to the irregular parts at both ends of a steel strip tolerance of a hot-rolled high-tensile strength steel sheet (KOBELCO standard) is as per JIS G

19 Steel sheets and strips for high-pressure gas containers (JIS G3116) tolerance of SG255 and SG295 Width Less than or more, but less than or more, but less than or more, but less than or more, but less than 2. ±.16 ±.17 ± or more, but less than 2.5 ±.17 ±.19 ±.21 ± or more, but less than 3.15 ±.19 ±.21 ±.24 ± or more, but less than 4. ±.21 ±.23 ±.26 ± or more, but less than 5. ±.24 ±.26 ±.28 ± or more, but less than 6. ±.26 ±.28 ±.29 ±.31 Remarks 6. ±.29 ±.3 ±.31 ±.35 (Unit: mm) 1. If the width of the steel sheet/strip is 2, mm or more, the tolerance should be determined as an agreement between the parties concerned with the delivery. 2. is determined at an arbitrary point located 2 mm or more inward from the edge. 3. Inapplicable to the irregular parts at both ends of a steel strip tolerance of SG325 Width Less than or more, but less than or more, but less than or more, but less than or more, but less than 2. ±.16 ±.19 ±.2-2. or more, but less than 2.5 ±.18 ±.22 ±.23 ± or more, but less than 3.15 ±.2 ±.24 ±.26 ± or more, but less than 4. ±.23 ±.26 ±.28 ±.3 4. or more, but less than 5. ±.26 ±.29 ±.31 ± or more, but less than 6. ±.29 ±.31 ±.32 ±.34 Remarks 6. ±.32 ±.33 ±.34 ±.38 (Unit: mm) 1. If the width of the steel sheet/strip is 2, mm or more, the tolerance should be determined as an agreement between the parties concerned with the delivery. 2. is determined at an arbitrary point located 2 mm or more inward from the edge. 3. Inapplicable to the irregular parts at both ends of a steel strip Other (JIS G3193) Rolled steel material for general structure (JIS G311) Rolled steel material for welded structures (JIS G316) Checkered steel sheet (KOBELCO standard) tolerance of the above items is as per JIS G3193. Tolerance of JIS G3193 Width Less than or more, but less than 2 2 or more, but no more than 28 Less than 1.25 ± or more, but less than 1.6 ± or more, but less than 2. ±.19 ± or more, but less than 2.5 ±.2 ± or more, but less than 3.15 ±.22 ±.29 ± or more, but less than 4. ±.24 ±.34 ± or more, but less than 5. ±.45 ±.55 ± or more, but less than 6.3 ±.5 ±.6 ± or more, but less than 1. ±.55 ±.65 ± or more, but less than 16. ±.55 ±.65 ± or more, but no more than 25. ±.65 ±.75 ±.75 (Unit: mm) Remarks should be determined at an arbitrary point located 25 mm or more inward from the edge (for a mill-edge steel strip or a cut sheet from it), or at an arbitrary point located 15 mm or more inward from the edge (for a cut-edge steel strip or a cut sheet from it). 17

20 Dimension tolerance 2 Width tolerance Hot-rolled soft steel sheet/strip (JIS G3131) Hot-rolled carbon steel strip for steel tubes (JIS G3132) Hot-rolled steel sheet/strip for automobile structure (JIS G3113) Vehicle-workable, hot-rolled high-tensile strength steel sheet/strip (JIS G3134) Rolled steel material for general structure (JIS G311) Steel sheets and strips for high-pressure gas containers (JIS G3116) Rolled steel material for welded structures (JIS G316) Hot-rolled high-tensile strength steel sheets (KOBELCO standard) Checkered steel sheet (KOBELCO standard) tolerance of the above items is as per JIS G3193. Width tolerance of JIS G3193 (Unit: mm) Tolerance Cut edge Width Mill-edge steel strip and a cut sheet from it A Pursuant to normal sawing methods B Sawn again or undergone precision sawing Less than or more, but less than or more, but less than or more Less than or more, but less than 1 6. or more, but less than or more Less than or more, but less than or more, but less than or more Less than or more, but less than or more, but less than or more Less than or more, but less than 2 6. or more, but less than or more +2 - Less than or more, but less than 3 6. or more, but less than or more +2 - For cut edge, tolerance A should precede unless otherwise specified. 18

21 3Length tolerance (JIS G3193) Hot-rolled soft steel sheet/strip (JIS G3131) Hot-rolled carbon steel strip for steel tubes (JIS G3132) Hot-rolled steel sheet/strip for automobile structure (JIS G3113) Vehicle-workable, hot-rolled high-tensile strength steel sheet/strip (JIS G3134) Rolled steel material for general structure (JIS G311) Steel sheets and strips for high-pressure gas containers (JIS G3116) Rolled steel material for welded structures (JIS G316) Hot-rolled high-tensile strength steel sheets (KOBELCO standard) Checkered steel sheet (KOBELCO standard) tolerance of the above items is as per JIS G3193. Length tolerance A of a steel sheet (pursuant to normal sawing methods) (Unit: mm) Length tolerance B of a steel sheet (sawn again or undergone precision sawing) (Unit: mm) Length Less than 4 4 or more, but less than 6 6 or more, but less than 8 8 or more, but less than 1 1 or more, but less than 15 Tolerance Length Tolerance Less than or more Less than or more, but less than 2. Less than or more, but less than

22 Packing and sticker indication Coil packing Mill scale coil Pickling coil Hoop dolly block Hoop Hoop dolly block Hoop Steel ring Sticker Sticker Waterproof paper Sticker indication 2

23 Order guide and contact See the following guide before contacting us to place an order. Specifications of a hot-rolled steel sheet Standard Dimensions :, width and length (sheet) Surface finish : Mill scale and pickling Ear finish : Mill edge and cut edge Inside diameter : 762 mm (3 ) and 61 mm (24 ) are standard. Outside diameter : Our maximum restriction on outside diameter is 2,1 mm. Unit of packing : Sheet: Usually, the standard weight of a sheet is 2 tons or greater. Coil: Specify the maximum single mass. Applications and working conditions Purpose and condition of use and working conditions, such as welding and bending Dimension tolerance, mechanical properties and other required properties Deadline Note and disclaimer The technical information written in this document is intended to explain the general properties and performance of our products and is not intended to guarantee anything other than the information and instructions herein. The information written in this document may not apply depending on the purpose, environment and condition of use of the product. We assume no liability for any damage resultant from improper use of the product. The descriptions in this document may be changed without prior notice. For the latest information, contact the relevant department of Kobe Steel, Ltd. Contact Sheet Products Sales Department Tokyo Head Office Osaka Branch Office Nagoya Branch Office Chugoku Sales Office Kyushu Sales Office Sheet Products Marketing & Technical Service Department Tokyo Head Office Osaka Branch Office Nagoya Branch Office Chugoku Sales Office Kyushu Sales Office 21

24 Iron & Steel Business Kobe Head Office 2-4, Wakinohama-Kaigandori 2-chome, Chuo-ku, Kobe, Hyogo, , Japan Tokyo Head Office 9-12, Kita-Shinagawa 5-chome, Shinagawa-ku, Tokyo, , Japan Osaka Branch Office Midosuji Mitsui Building, 1-3, Bingomachi 4-chome, Chuo-ku, Osaka, Osaka, , Japan Nagoya Branch Office Nagoya Prime Central Tower 15th Floor, 27-8, Meieki 2-chome, Nishi-ku, Nagoya, Aichi, , Japan Hokkaido Sales Office Nippon Seimei Kitamonkan Building, 1-3, Kita-Shijo Nishi 5-chome, Chuo-ku, Sapporo, Hokkaido, 6-4, Japan Tohoku Sales Office Sendai NS Building, 2-25, Ichibancho 1-chome, Aoba-ku, Sendai, Miyagi, , Japan Niigata Sales Office Nippon Seimei Niigata Building, 4-1, Higashiodori 2-chome, Chuo-ku, Niigata, Niigata, 95-87, Japan Hokuriku Sales Office Urban Place, 18-7, Ushijimacho, Toyama, Toyama, , Japan Shikoku Sales Office Takamatsu Kogin Building, 6-8, Bancho 1-chome, Takamatsu, Kagawa, 76-17, Japan Chugoku Sales Office Meiji Yasuda Seimei Hiroshima Building 11th Floor, 4-25 Fukuromachi, Naka-ku, Hiroshima, Hiroshima, 73-36, Japan Kyushu Sales Office Shinkansen Hakata Building, 1-1, Hakataeki Chuogai, Hakata-ku, Fukuoka, Fukuoka, , Japan Okinawa Sales Office Naha Shintoshin Media Building-West, 3-31, Omoromachi 1-chome, Naha, Okinawa, 9-6, Japan PR-F

Hot-Rolled Steel Sheets and Coils

Flat Products Hot-Rolled Steel Sheets and Coils http://www.nssmc.com/ 2-6-1 Marunouchi, Chiyoda-ku, Tokyo 1-871 Japan Tel: +81-3-6867-4111 Hot-Rolled Steel Sheets and Coils U1en_2_2168f 212, 216 NIPPON