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
C70315
STOL 94
Rem(2)0.051.02.00.101.04.00.08 Si
0.05 P
0.50 Ag
0.20 Mg
1.0 Si
active
C70318Rem(2)0.050.500.502.63.40.500.6 Si
0.8 Co
1.2 Si
1.2 Co
0.20 Cr
0.10 Mg
0.10 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
C70330Rem(5)0.200.501.50.50 Co
0.05 Cr
0.40 Si
0.20 P
1.5 Co
0.20 Cr
0.8 Si
active
C70350*Rem(2)0.051.00.201.02.50.201.0 Co
0.50 Si
2.0 Co
0.15 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
C70390Rem(2)0.051.00.202.34.60.200.10 Co
0.6 Si
0.8 Co
0.20 Mg
1.3 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)(6)(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(7)(1)(2)0.050.050.5029.0(3)33.00.300.07 C
active
C71581*Rem(8)(2)(1)0.020.400.729.0(3)32.01.0active
C71590*Rem(6)(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)(9)(1)0.05(9)1.0(9)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
C71950Rem(10)0.0050.51.029.032.00.51.01.6 Cr
0.20 Si
0.03 Ti
0.05 Zr
0.005 P
0.001 B
0.001 Bi
0.020 C
0.050 Co
2.0 Cr
0.005 S
0.40 Si
0.15 Ti
0.15 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)(9)(11)0.05(9)1.0(9)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)(12)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(11)(1)0.051.82.80.500.68.5(3)10.50.20active
C72600*
Copper Nickel
91.093.0(12)(1)3.54.50.500.203.5(3)4.50.200.05 P
inactive
03/92
C72650*Rem(12)(1)0.014.55.50.100.107.0(3)8.00.10active
C72660*Rem(2).024.55.5.50.507.08.0(13).05.30.15 Mg
active
C72700*Rem(12)(1)0.02(14)5.56.50.500.508.59.5(3)0.050.300.15 Mg
0.10 Nb
active
C72800*Rem(12)(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(12)(1)0.02(14)7.58.50.500.5014.515.5(3)0.300.15 Mg
0.10 Nb
active
C72950*Rem(12)(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)0.109.015.00.254.07.00.50inactive
03/92
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) = Cu + Sum of Named Elements, 99.92% min.
(6) = 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.
(7) = The following additional maximum limits shall apply: Si 0.15% S 0.024% Al 0.05% and P 0.03%.
(8) = Includes P 0.02% max.; Si 0.25% max.; S 0.01% max.; Ti 0.02 - 0.50%.
(9) = 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%.
(10) = Cu + Sum of Named Elements 99.93% min.
(11) = Cu + Sum of Named Elements 99.8% min.
(12) = Cu + Sum of Named Elements 99.7% min.
(13) = Includes Co.
(14) = 0.005% Pb max. for hot rolling.