* 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 Central Steel and Wire Company 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. Central Steel and Wire Company 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 CONVERSION TABLE FOR CARBON AND ALLOY STEELS NON-AUSTENITIC STAINLESS STEEL MOST NON-FERROUS ALLOYS-EXCEPT ALUMINUM ALL VALUES ARE APPROXIMATE C Scale Rockwell Hardness Numbers A Scale 15N Scale Superficial B Scale Brinell Hardness Tensile 30T Scale Number Strength Superficial (Carbide Ball) ksi MPa (654)* * Outside recommended Brinell hardness testing range (ASTM E 10)

3 STANDARD CARBON NON-RESULFURIZED STEELS* CHEMICAL COMPOSITION LIMITS ASTM/AISI UNS P S Grade Number C Mn Max. Max G max max G max G max SHEET 0.10 max max SHEET 0.15 max max G SHEET MT1010 TUBE G G G G G G G G G TUBE PLATE M G G G G G TUBE G G G G G G G G M G G G SHEET G G G G G G G G STRIP G G G G G G G STRIP * The above chemistries are Recognized Industry Standards for Bar Products, unless otherwise noted. Plate, sheet, and tubing may be slightly different. Source: ASTM A 29, ISS Steel Bar Product Guidelines, UNS 7th Ed. When lead is added to a grade (e.g.,10l18), the limits of lead are 0.15% / 0.35%.

4 STANDARD CARBON-RESULFURIZED STEELS* CHEMICAL COMPOSITION LIMITS ASTM/AISI UNS P Grade Number C Mn Max. S 1108 G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / / G / / /0.13 ASTM A 311 or STRESSPROOF G / / /0.33 FATIGUE- PROOF G / / /0.33 * The above chemistries are Recognized Industry Standards for Bar Products. Source: ASTM A 29, ISS Steel Bar Product Guidelines, and UNS 7th Edition When lead is added to a grade (e.g., 11L17), the limits of lead are 0.15%/0.35%. STANDARD CARBON REPHOSPHORIZED AND RESULFURIZED STEELS* CHEMICAL COMPOSITION LIMITS ASTM/AISI UNS C Grade Number Max Mn P S Pb 1211 G /.90.07/.12.10/ G / /.12.16/ G / /.12.24/ G / /.09.26/.35 12L13 G / /.12.24/.33.15/.35 12L14 G / /.09.26/.35.15/.35 INcut 100/ Bismuth 1214SA.09.85/ /.09.26/ min. (.10 Nom) Bismuth INcut / /.09.26/ min (.20 Nom) * The above chemistries are Recognized Industry Standards for Bar Products. Source: ASTM A 29, ISS Steel Bar Product Guidelines, and UNS 7th Edition.

5 STANDARD CARBON HIGH MANGANESE STEELS* CHEMICAL COMPOSITION LIMITS ASTM/AISI UNS P S Former Grade Number C Mn Max. Max. Std SAE 1513 G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / G / / * The above chemistries are Recognized Industry Standards for Bar Products. Plate, sheet, and tubing may be slightly different. Source: ASTM A 29, ISS Steel Bar Product Guidelines and UNS 7th Edition

6 TYPICAL MECHANICAL PROPERTIES OF STANDARD CARBON STEELS These figures show the APPROXIMATE ranges of mechanical properties of steels in common use in 1 Rounds 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. MECHANICAL PROPERTIES TYPICAL HARDNESS Average Tensile Yield Elongation Reduction Machinability ASTM/AISI Strength Strength in 2 of Area % of G rade Condition of Steel ksi ksi % % Brinell Rockwell CD Hot Rolled 42/52 21/31 25/35 50/60 95/120 B60/67 50/65 40/55 20/30 40/50 110/140 B63/ ** Hot Rolled 55/70 35/50 30/40 55/65 120/140 B67/80 55 * Carburize 1700 F, Austenitize 1425 F, 70/85 60/75 18/25 45/55 150/180 B80/90 65 Water Quench, Temper 350 F (Core) B M * Hot Rolled Hot Rolled 55/70 75/85 35/50 40/50 30/40 12/20 55/65 35/45 120/ /170 Hot Rolled 90/105 55/65 15/25 35/45 190/220 B90/ /110 75/90 12/20 30/45 195/230 B90/99 58 Austenitize 1550 F, Water Quench, Temper 1000 F C Hard Drawn Stress Relieved.524 & Under 145 typical 100 min 5 min 253 min C25 min Incl 155 typical 125 min 5 min 286 min C30 min 50 Over min 130 min 5 min 319 typical C34 typical 50 * ** Not stocked typical properties if heat treated as shown Continued 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%. 1 ksi = 1000 psi B67/80 B80/87 50

7 Continued from preceding page TYPICAL MECHANICAL PROPERTIES OF STANDARD CARBON STEELS These figures are NOT GUARANTEED MECHANICAL PROPERTIES TYPICAL HARDNESS Average Tensile Yield Elongation Reduction Machinability ASTM/AISI Strength Strength in 2 of Area % of Grade Condition of Steel ksi ksi % % Brinell Rockwell CD Hot Rolled 130/150 75/95 7/17 10/25 260/300 C26/32 Spheroidize Annealed 90/110 55/65 15/25 35/45 190/220 B90/99 42 * Austenitize 1450 F, Water Quench, Temper 1000 F C ** Hot Rolled 65/75 40/50 25/35 55/65 135/155 B74/ /90 65/80 15/20 45/55 150/190 B80/90 90 * Carburize 1700 F, Austenitize 1450 F, Water Quench, Temper 350 F (Core) B Hot Rolled 90/105 55/70 15/25 35/50 180/220 B89/ /110 75/90 9/19 25/35 190/225 B90/99 72 Austenitize 1550 F, Water Quench, Temper 1000 F C26 * Austenitize 1550 F, Oil Quench, Temper 1000 F B ** Hot Rolled Average 95/110 55/70 15/25 30/45 190/220 B90/ /120 85/105 8/18 25/35 200/250 B93/C C /120 90/110 7/17 20/35 210/250 B96/C24 85 * Austenitize 1550 F, Oil Quench, Temper 1000 F * Austenitize 1550 F, Oil Quench, Temper 1000 F C24 ASTM A 311 Hard Drawn Stress Relieved (1144) Thru min 100 min 8 min 25 min 235/285 C22/30 83 Class B or Over 2 Thru min 100 min 8 min 20 min 235/285 C22/30 83 STRESSPROOF Over 3 Thru 4-1/2 115 min 100 min 7 min 20 min 235/285 C22/30 83 FATIGUE-PROOF or Equivalent Mechanical Properties 140 min 125 min 5/15 15/ min C30 min 80 * ** Not stocked typical properties if heat treated as shown Continued 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

8 Continued from preceding page TYPICAL MECHANICAL PROPERTIES OF STANDARD CARBON AND ALLOY STEELS These figures are NOT GUARANTEED MECHANICAL PROPERTIES TYPICAL HARDNESS Tensile Yield Elongation Reduction Machinability ASTM/AISI Strength Strength in 2 of Area % of Grade Condition of Steel ksi ksi % % Brinell Rockwell CD L14 12L14 + Te INcut 100/ 1214 SA 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 /85 60/75 12/18 40/50 150/180 B80/ Normalized 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 105/120 85/95 15/25 45/55 215/235 B96/ /50 HR & CF 1-1/2 and under 130 min 110 min 16 min 50 min 269/321 C28/34 Heat Treated Over 1-1/2 2-1/2 incl 125 min 105 min 16 min 50 min 269/321 C28/34 50 Over 2-1/2 4 incl 115 min 95 min 16 min 50 min 269/321 C28/34 41L42/50 HR & CF Over 4 7 incl 110 min 85 min 16 min 45 min 262/311 C26/33 Heat Treated Over 7 9-1/2 incl 105 min 80 min 15 min 40 min 262/311 C26/ * 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 C28/34 Heat Treated Over 1-1/2 2-1/2 incl 125 min 105 min 16 min 50 min 269/321 C28/34 Over 2-1/2 4 incl 115 min 95 min 16 min 50 min 269/321 C28/34 62 Over 4 7 incl 110 min 85 min 16 min 45 min 262/311 C26/33 Over 7 9-1/2 incl 105 min 80 min 15 min 40 min 262/311 C26/ 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 Continued on following page 20/30 45/55 B80/95 B80/90 B80/90 B80/90 B90/96 Average