* Outside recommended Brinell hardness testing range (ASTM E 10)

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1 Material Data The data information contained on this Web site is derived from many different sources. While entral Steel and Wire ompany has taken all reasonable steps to ensure that all the information is from a reliable and reputable source and is accurate, it accepts no liability or responsibility for any acts or omissions, done or omitted in reliance, in whole or in part, on the information. entral Steel and Wire ompany takes no responsibility for the manner in which this information is subsequently used. These figures show the APPROXIMATE ranges of mechanical properties and cannot be used as a basis of acceptance or rejection of material. They are NOT GUARANTEED and are given only as an indication of what may be expected and should under no circumstances be used in specifying the raw materials. It must not be assumed that these properties will be obtained in all cases, as they vary widely with permissible variations in analysis, size of section, rolling conditions, grain size, and methods of heat treatment. Dependable mechanical properties can only be obtained through carefully controlled heat treatment or special processing.

2 HARDNESS ONVERSION TABLE FOR ARBON AND ALLOY STEELS NON-AUSTENITI STAINLESS STEEL MOST NON-FERROUS ALLOYS-EXEPT ALUMINUM ALL VALUES ARE APPROXIMATE Scale Rockwell Hardness Numbers A Scale 15N Scale Superficial B Scale Brinell Hardness Tensile 30T Scale Number Strength Superficial (arbide Ball) ksi MPa (654) Outside recommended Brinell hardness testing range (ASTM E 10)

3 STANDARD ALLOY STEELS HEMIAL OMPOSITION LIMITS Grade UNS Number Mn P omposition Limits, Per ent 1330 G / / / G / / / G / / / G / / / G / / / / G / / / / / G / / / / G / / / / / G / / / / G / / / / G / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / G / / / / / MRS 0.48/ / / / / / G / / / / / G / / / / / / G / / / / / /0.30 The above chemistries are Recognized Industry Standards for Bar Products. Plate, sheet and tubing may be slightly different. When lead is added to a grade (e.g., 41L42), the limits of lead are 0.15%/0.35%. ontinued on following page S Si Ni r

4 ontinued from preceding page Grade UNS Number STANDARD ALLOY STEELS HEMIAL OMPOSITION LIMITS Mn P omposition Limits, Per ent E4340 G / / / / / / G / / / / G / / / / G / / / / / G / / / / / G / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / G / / / / / G / / / / / G / / / / B44 G / / / / B46 G / / / / B60 G / / / / G / / / / G / / / / G / / / / Boron content is.0005%/.003%. ontinued on following page S The above chemistries are Recognized Industry Standards for bar products. Plate, sheet, and tubing may be slightly different. When lead is added to a grade (e.g., 41L42), the limits of lead are 0.15%/0.35%. E=Electric Furnace Quality Si Ni r

5 ontinued from preceding page Grade UNS Number STANDARD ALLOY STEELS HEMIAL OMPOSITION LIMITS Mn P omposition Limits, Per ent 5132 G / / / / G / / / / G / / / / G / / / / G / / / / G / / / / G / / / / B60 G / / / / E50100 G / / / / E51100 G / / / / E52100 G / / / / V 6118 G / / / / / G / / / / Min G / / / / / / G / / / / / / G / / / / / / G / / / / / /0.25 E8620 G / / / / / / G / / / / / / G / / / / / / G / / / / / /0.25 Boron content is.0005%/.003%. ontinued on following page S The above chemistries are Recognized Industry Standards for bar products. Plate, sheet, and tubing may be slightly different. When lead is added to a grade (e.g., 41L42), the limits of lead are 0.15%/0.35%. E=Electric Furnace Quality Si Ni r

6 See notes below ontinued from preceding page Grade UNS Number STANDARD ALLOY STEELS HEMIAL OMPOSITION LIMITS Mn P omposition Limits, Per ent 8630 G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / / / G / / / / G / / / E9310 G / / / / / / B17 G / / / / / / B30 G / / / / / /0.15 e.t.d. 150 K min. 0.70/ / / /0.25 Proprietary Grade Nearest Standard grade is 4142H dified with additives to improve machinability may be Te, Se, S (.06 ) or others separately or in combination. The above chemistries are Recognized Industry Standards for bar products. Plate, sheet, and tubing may be slightly different. Boron content is.0005%/.003%. When lead is added to a grade (e.g., 41L42), the limits of lead are 0.15%/0.35%. NOTE 1. Small quantities of certain elements which are not specified or required are present in alloy steels. These elements are considered as incidental and may be present to the following maximum amounts: opper, 0.35 per cent; Nickel, 0.25 per cent; hromium, 0.20 per cent and lybdenum, 0.06 per cent. NOTE 2. Source for all chemical composition limits: ASTM A 29, ISS Steel Bar Product Guidelines, UNS 7th edition. These limits are subject to standard variations in product analysis shown in these sources. E=Electric Furnace Quality S Si Ni r

7 ontinued from preceding page TYPIAL MEHANIAL PROPERTIES OF STANDARD ARBON AND ALLOY STEELS These figures are NOT GUARANTEED MEHANIAL PROPERTIES TYPIAL HARDNESS Tensile Yield Elongation Reduction Machinability Strength Strength in 2 of Area % of Grade ondition of Steel ksi ksi % % Brinell Rockwell D L14 12L14 + Te INcut 100/ 1214 SA old Drawn old Drawn old Drawn old Drawn 80/95 70/85 70/85 70/85 70/80 60/75 60/75 60/75 10/15 12/18 12/18 12/18 34/45 40/50 40/50 40/50 150/ / / /180 INcut 200 old Drawn 70/85 60/75 12/18 40/50 150/180 B80/ Normalized old Drawn 85/110 70/85 20/30 50/60 185/217 B90/ Hot Rolled Annealed 90/100 60/70 20/30 50/60 185/210 B90/95 55 Annealed old Drawn 105/120 85/95 15/25 45/55 215/235 B96/ /50 HR & F 1-1/2 and under 130 min 110 min 16 min 50 min 269/321 28/34 Heat Treated Over 1-1/2 2-1/2 incl 125 min 105 min 16 min 50 min 269/321 28/34 50 Over 2-1/2 4 incl 115 min 95 min 16 min 50 min 269/321 28/34 41L42/50 HR & F Over 4 7 incl 110 min 85 min 16 min 45 min 262/311 26/33 Heat Treated Over 7 9-1/2 incl 105 min 80 min 15 min 40 min 262/311 26/ Hot Rolled Annealed 90/110 65/75 20/30 45/55 185/215 B90/ MRS HR 1-1/2 and under 130 min 110 min 16 min 50 min 269/321 28/34 Heat Treated Over 1-1/2 2-1/2 incl 125 min 105 min 16 min 50 min 269/321 28/34 Over 2-1/2 4 incl 115 min 95 min 16 min 50 min 269/321 28/34 62 Over 4 7 incl 110 min 85 min 16 min 45 min 262/311 26/33 Over 7 9-1/2 incl 105 min 80 min 15 min 40 min 262/311 26/ MRS Hot Rolled Annealed 90/110 65/75 185/215 With the addition of 0.15%/0.35% lead, longitudinal mechanical properties are not appreciably affected, and machinability is increased approximately 25%. 1 ksi = 1000 psi ontinued on following page 20/30 45/55 B80/95 B80/90 B80/90 B80/90 B90/96 Average

8 ontinued from preceding page TYPIAL MEHANIAL PROPERTIES OF STANDARD STEELS These figures are NOT GUARANTEED MEHANIAL PROPERTIES TYPIAL HARDNESS Average Tensile Yield Elongation Reduction Machinability Strength Strength in 2 of Area % of Grade ondition of Steel ksi ksi % % Brinell Rockwell D Hot Rolled Annealed 100/120 65/85 20/30 45/55 210/250 B95/ Austenitize 1550 F, Oil Quench, Temper 1000 F Hot Rolled 105/115 68/78 20/30 50/60 205/235 B94/99 52 arburize 1700 F, Austenitize 1475 F, Oil Quench, Temper 300 F (ore) 165/ /135 15/20 45/55 335/365 35/40 E52100 Annealed old Drawn 100/120 80/90 12/22 50/60 200/220 B93/ Austenitize 1550 F, Oil Quench, Temper 400 F 60/ Hot Rolled 80/95 60/70 18/25 55/65 165/200 B85/93 55 old Drawn arburize 1700 F, Austenitize 1550 F, 95/105 80/90 15/25 50/60 200/220 B93/97 60 Oil Quench, Temper 300 F (ore) 125/ /120 15/20 45/55 250/300 24/32 E8620 old Drawn arburize 1700 F, Austenitize 1550 F, Oil Quench, Temper 300 F (ore) 95/ /150 80/90 100/120 15/25 15/20 50/60 45/55 200/ /300 B93/97 24/32 60 e.t.d. 150 W-1 Elevated Temperature Drawn Spheroidize Annealed 150 min 80/ min 65/75 10/30 10/15 35/45 30/ min 32 min /230 B94/97 43 O-1 Austenitize 1450 F, Water Quench, Temper 400 F 627/745 59/62 Spheroidize Annealed 90/105 75/85 10/15 25/30 200/240 B94/ Austenitize 1450 F, Oil Quench, Temper 400 F 627/682 59/61 Not stocked typical properties if heat treated as shown ontinued on following page With the addition of 0.15%/0.35% lead, longitudinal mechanical properties are not appreciably affected, and machinability is increased approximately 25%. In the event of disagreement between hardness and tensile strength, the tensile strength shall govern. 1 ksi = 1000 psi