Wrought Copper Alloys: Copper Nickels (C70000 - C73499)

Standard Designation for Wrought Copper Alloys

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Copper-Nickel Alloys (C70000 - C73499)

* = are alloys registered with the U.S. EPA as Antimicrobial.

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UNS # Cu Pb Sn Zn Fe Ni Mn Other Named Elements Status
Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max%
C70100*Rem(1)(2)0.250.053.0(3)4.00.50active
C70200*Rem(1)(2)0.050.102.0(3)3.00.40active
C70230*Rem(2)(1)0.100.500.502.02.23.20.40 Si
0.10 Ag(4)
0.8 Si
active
C70240*Rem(2)(1)0.050.300.80.101.04.0(3)0.010.200.01 Ag
0.40 Si
0.10 Ag
0.8 Si
active
C70250*Rem(1)(2)0.051.00.202.24.2(3)0.100.05 Mg
0.25 Si
0.30 Mg
1.2 Si
active
C70252*
Copper Nickel NKC 388
Rem(2)(1)0.051.00.203.0(3)4.20.110.200.05 Mg
0.40 Si
0.30 Mg
1.2 Si
active
C70260*Rem(1)(2)1.0(3)3.00.20 Si
0.01 P
0.7 Si
active
C70265*Rem(2)(1)0.050.050.80.301.03.0(3)0.20 Si
0.01 P
0.7 Si
active
C70270*Rem(2)(1)0.050.101.01.00.281.01.03.0(3)0.150.20 Si
1.0 Si
active
C70275*
Copper Nickel Alloy MAX126
Rem(1)(2)0.010.301.00.301.00.250.501.50.002 Mg
0.10 Si
0.01 Ca
0.06 Cr
0.20 Mg
0.50 Si
active
C70280*Rem(1)(2)0.021.01.50.300.0151.3(3)1.70.02 P
0.22 Si
0.04 P
0.30 Si
active
C70290*Rem(2)(1)0.022.12.70.300.0151.3(3)1.70.02 P
0.22 Si
0.04 P
0.30 Si
active
C70300*
Copper Nickel Alloy
Rem(1)0.054.75.70.05inactive
07/74
C70310*Rem(1)(2)0.051.02.00.101.04.0(3)0.02 Ag
0.08 Si
0.005 Zr
0.05 P
0.50 Ag
0.10 Mg
1.0 Si
0.05 Zr
active
C70320
Copper Nickel
Rem(1)2.5(3)5.00.20 Al
0.18 Cr
0.20 Si
1.2 Al
0.50 Cr
1.2 Si
inactive
03/92
C70350*Rem(1)(2)0.051.00.201.02.50.201.0 Co
0.50 Si
2.0 Co
0.04 Mg
1.2 Si
active
C70370*Rem(2)(1)0.051.00.201.02.00.200.20 Ag
1.0 Co
0.50 Si
0.70 Ag
2.0 Co
0.04 Mg
1.0 Si
active
C70400*
Copper-Nickel, 5%
Rem(1)(2)0.051.01.31.74.8(3)6.20.300.8active
C70440
95/5 Copper-Nickel
Rem(1)(2)0.051.01.01.84.5(3)6.01.01.50.35 Si
0.05 C
0.05 S
0.45 Si
inactive
03/92
C70500*
Copper-Nickel, 7%
Rem(2)(1)0.050.200.105.8(3)7.80.15active
C70600*
Copper-Nickel, 10%
Rem(2)(1)0.051.01.01.89.011.0(3)1.0active
C70610*Rem(1)(2)0.011.02.010.0(3)11.00.501.00.05 C
0.05 S
active
C70620*86.5(1)(2)0.020.501.01.89.011.0(3)1.00.02 P
0.05 C
0.02 S
active
C70690*Rem(1)(5)(2)0.0010.0010.0059.0(3)11.00.0010.02 C
active
C70700*Rem(1)(2)0.059.510.5(3)0.50active
C70800*
Copper-Nickel, 11%
Rem(1)(2)0.050.200.1010.5(3)12.50.15active
C70900*
Copper Nickel
Rem(1)0.051.00.613.5(3)16.50.6inactive
03/92
C71000*
Copper-Nickel, 20%
Rem(2)(1)0.051.01.019.0(3)23.01.0active
C71100*Rem(1)(2)0.050.200.1022.0(3)24.00.15active
C71110*
Copper Nickel
Rem(1)21.5(3)23.50.350.008 S
0.05 Ti
inactive
03/92
C71300*Rem(1)(2)0.051.00.2023.5(3)26.51.0active
C71500*
Copper-Nickel, 30%
Rem(2)(1)0.051.00.401.029.033.0(3)1.0active
C71520*65.0(1)(2)0.020.500.401.029.0(3)33.01.00.02 P
0.05 C
0.02 S
active
C71580*Rem(6)(1)(2)0.050.050.5029.0(3)33.00.300.07 C
active
C71581*Rem(7)(2)(1)0.020.400.729.0(3)32.01.0active
C71590*Rem(5)(1)0.0010.0010.0010.1529.0(3)31.00.500.02 C
active
C71600*
Copper Nickel Alloy
Rem(1)0.051.04.85.829.0(3)33.01.0inactive
05/71
C71630*
Copper Nickel
Rem(1)0.010.401.030.0(3)32.00.501.50.06 C
0.08 S
inactive
03/92
C71640*Rem(2)(8)(1)0.05(8)1.0(8)1.72.329.0(3)32.01.52.50.06 C
0.03 S
active
C71700*Rem(1)(2)1.00.401.029.0(3)33.01.00.30 Be
0.7 Be
active
C71900Rem(1)(2)0.0150.050.5028.0(3)33.00.201.02.2 Cr
0.01 Ti
0.02 Zr
0.02 P
0.04 C
3.0 Cr
0.015 S
0.25 Si
0.20 Ti
0.35 Zr
active
C72000
Copper-Nickel Alloy
Rem(1)0.050.301.52.540.043.0(3)0.81.7inactive
02/71
C72150Rem(1)(2)0.050.200.1043.0(3)46.00.050.10 C
0.50 Si
active
C72200Rem(1)(8)(9)0.05(8)1.0(8)0.501.015.0(3)18.01.00.30 Cr
0.7 Cr
0.03 Si
0.03 Ti
active
C72400
Copper Nickel
Rem(1)0.050.050.500.1011.015.0(3)1.01.5 Al
0.05 Mg
2.5 Al
0.40 Mg
1.0 Hg
inactive
03/92
C72420Rem(1)(10)0.020.100.200.71.213.5(3)16.53.55.51.0 Al
0.01 P
2.0 Al
0.05 C
0.50 Cr
0.05 Mg
0.15 S
0.15 Si
active
C72500*Rem(9)(1)0.051.82.80.500.68.5(3)10.50.20active
C72600*
Copper Nickel
91.093.0(10)(1)3.54.50.500.203.5(3)4.50.200.05 P
inactive
03/92
C72650*Rem(10)(1)0.014.55.50.100.107.0(3)8.00.10active
C72660*Rem(2).024.55.5.50.507.08.0(11).05.30.15 Mg
active
C72700*Rem(10)(1)0.02(12)5.56.50.500.508.59.5(3)0.050.300.15 Mg
0.10 Nb
active
C72800*Rem(10)(1)0.0057.58.51.00.509.5(3)10.50.050.300.005 Mg
0.10 Nb
0.005 P
0.10 Al
0.001 B
0.001 Bi
0.15 Mg
0.0025 S
0.02 Sb
0.05 Si
0.01 Ti
0.30 Nb
active
C72900*Rem(10)(1)0.02(12)7.58.50.500.5014.515.5(3)0.300.15 Mg
0.10 Nb
active
C72950*Rem(10)(1)0.054.55.70.620.0(3)22.00.6active
C73100*
Copper Zinc Nickel Alloy
Rem(1)(2)0.050.1018.022.00.104.06.00.50active
C73150*
Copper Nickel
Rem(1)0.109.015.00.254.07.00.50active
C73200*
Copper Nickel
Rem(1)0.053.06.00.619.023.01.0inactive
03/92

* = are alloys registered with the U.S. EPA as Antimicrobial.

(1) = Cu value includes Ag.
(2) = Cu + Sum of Named Elements 99.5% min.
(3) = Ni value includes Co.
(4) = Ag Includes B
(5) = The following additional maximum limits shall apply: Si 0.015% S 0.003% Al 0.002% P 0.001% Hg 0.0005% Ti 0.001% Sb 0.001% As 0.001% Bi 0.001% Co 0.05% Mg 0.10% and Oxygen 0.005% Oxygen. For C70690, Co shall be 0.02% max.
(6) = The following additional maximum limits shall apply: Si 0.15% S 0.024% Al 0.05% and P 0.03%.
(7) = Includes P 0.02% max.; Si 0.25% max.; S 0.01% max.; Ti 0.02 - 0.50%.
(8) = The following additional maximum limits shall apply: When the product is for subsequent welding applications and is so specified by the purchaser Zn 0.50% P 0.02% Pb 0.02% S 0.02% (0.008% S for C71110) and C 0.05%.
(9) = Cu + Sum of Named Elements 99.8% min.
(10) = Cu + Sum of Named Elements 99.7% min.
(11) = Includes Co.
(12) = 0.005% Pb max. for hot rolling.