Blog
  2. ASTM
  3. Forgings
  4. ASTM B124 Specification

ASTM B124 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM B124 specification establishes the requirements for copper and copper alloy rod, bar, and shapes intended for hot forging. The following coppers and copper alloys are involved:

Copper UNS Nos. Copper Alloy UNS Nos
C11000 C35330
C14500 C36500
C14700 C37000
  C37700
  C46400
  C48200
  C48500
  C48600
  C49250
  C49255
  C49260
  C49300
  C49340
  C49350
  C49355
  C49360
  C61900
  C62300
  C63000
  C63200
  C64200
  C64210
  C65500
  C67500
  C67600
  C69300
  C70620
  C71520
  C77400
  C87700
  C87710
  C27450

NOTE 1—Additional information about forging practice and forgings produced from these alloys is given in Appendix X1 and in Specification B283.
Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
ASTM B124 standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

Related Specifications of ASTM B124

ASTM B124 Chemical Composition

Copper or Copper Alloy UNS No. Composition, %
UNS Cu Pb Sn Fe Ni (incl Co) Al Si Mn Zn S Te P As Bi Cu Plus Elements with Specific Limits Present, min
C11000 99.90 minA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C14500B 99.90 minC . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.40-0.7 0.004-0.012 . . . . . . . . .
C14700B 99.90 minD . . . . . . . . . . . . . . . . . . . . . . . . 0.20-0.50 . . . 0.002-0.005 . . . . . . . . .
C27450 60.0-65.0 0.25 max . . . 0.35 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.5
C35330 59.5-64.0 1.5-3.5 . . . . . . . . . . . . . . . . . . remainder . . . . . . . . . .02-.25 . . . . . .
C36500 58.0-61.0 0.25-0.7 0.25 max 0.15 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.6
C37000 59.0-62.0 0.8-1.5   0.15 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.6
C37700 58.0-61.0 1.5-2.5 . . . 0.30 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.5
C46400 59.0-62.0 0.20 max 0.50-1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.6
C48200 59.0-62.0 0.40-1.0 0.50-1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.6
C48500 59.0-62.0 1.3-2.2 0.50-1.0 0.10 max . . . . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.6
C48600 59.0-62.0 1.0-2.5 .30-1.5 . . . . . . . . . . . . . . . remainder . . . . . . . . . .02-.25 . . . . . .
C49250E 58.0-61.0 0.09 max 0.30 max 0.50 max . . . . . . . . . . . . remainder . . . . . . . . . . . . 1.8-2.4 99.5
C49255F 58.0-60.0 0.01 max 0.50 max 0.10 max 0.10-0.30 . . . 0.10 max . . . remainder . . . . . . 0.10 max . . . 1.7-2.9 99.5
C49260G 58.0-63.0 0.09 max 0.50 max 0.50 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05- 0.15 . . . 0.50-1.8 99.5
C49300H 58.0-62.0 0.01 max 1.0-1.8 0.10 max 1.5 max 0.50 max 0.10 max 0.03 max remainder . . . . . . 0.20 max . . . 0.50-2.0 99.5
C49340I 60.0-63.0 0.09 max 0.50- 1.5 0.12 max . . . . . . 0.10 max . . . remainder . . . . . . 0.05- 0.15 . . . 0.50-2.2 99.5
C49350J 61.0-63.0 0.09 max 1.5-3.0 0.12 max . . . . . . 0.30 max . . . remainder . . . . . . 0.04- 0.15 . . . 0.50-2.5 99.5
C49355K 63.0-69.0 0.09 max 0.50-2.0 0.10 max . . . . . . 1.0-2.0 0.10 max 27.0-35.0 . . . . . . . . . . . . 0.50-1.5 99.5
C49360 remainder 0.09 max 1.0-2.0 . . . . . . . . . 2.0-3.5 . . . 19.0-22.0 . . . . . . . . . . . . 0.50-1.5 99.5
C61900 remainderA 0.02 max 0.6 max 3.0-4.5 . . . 8.5-10.0 . . . . . . 0.8 max . . . . . . . . . . . . . . . 99.5
C62300 remainderA . . . 0.6 max 2.0-4.0 1.0 max 8.5-10.0 0.25 max 0.50 max . . . . . . . . . . . . . . . . . . 99.5
C63000 remainderA . . . 0.20 max 2.0-4.0 4.0-5.5 9.0-11.0 0.25 max 1.5 max 0.30 max . . . . . . . . . . . . . . . 99.5
C63200 remainderA 0.02 max . . . 3.5-4.3L 4.0-4.8L 8.7-9.5 0.10 max 1.2-2.0 . . . . . . . . . . . . . . . . . . 99.5
C64200 remainderA 0.05 max 0.20 max 0.30 max 0.25 max 6.3-7.6 1.5-2.2 0.10 max 0.50 max . . . . . . . . . 0.09 max . . . 99.5
C64210 remainderA 0.05 max 0.20 max 0.30 max 0.25 max 6.3-7.0 1.5-2.0 0.10 max 0.50 max . . . . . . . . . 0.09 max . . . 99.5
C65500 remainderA 0.05 max . . . 0.8 max 0.6 max . . . 2.8-3.8 0.50-1.3 1.5 max . . . . . . . . . . . . . . . 99.5
C67500 57.0-60.0A 0.20 max 0.50-1.5 0.8-2.0 . . . 0.25 max . . . 0.05-0.50 remainder . . . . . . . . . . . . . . . 99.5
C67600 57.0-60.0A 0.50-1.0 0.50-1.5 0.40-1.3 . . . . . . . . . 0.05-0.50 remainder . . . . . . . . . . . . . . . 99.5
C69300 73.0-77.0A 0.09 max 0.20 max 0.10 max 0.10 max . . . 2.7-3.4 0.10 max remainder . . . . . . 0.04-0.15 . . . . . . 99.5
C70620M 86.5 minA 0.02 max . . . 1.0-1.8 9.0-11.0 . . . . . . 1.0 max 0.50 max 0.02 max . . . 0.02 max . . . . . . 99.5
C71520M 65.0 minA 0.02 max . . . 0.40-1.0 29.0-33.0 . . . . . . 1.0 max 0.50 max 0.02 max . . . 0.02 max . . . . . . 99.5
C77400 43.0-47.0A 0.09 max . . . . . . 9.0-11.0 . . . . . . . . . remainder . . . . . . . . . . . . . . . 99.5
C87700N 87.5 min 0.09 max 2.0 max 0.50 max 0.25 maxO . . . 2.5-3.5 0.8 max 7.0-9.0 . . . . . . 0.15 max . . . . . . 99.2
C87710N 84 min 0.09 max 2.0 max 0.50 max 0.25 maxO . . . 3.0-5.0 0.8 max 9.0-11.0 . . . . . . 0.15 max . . . . . . 99.2

ASTM B124 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103