Wrought Copper Alloys: Bronzes (C50000 - C69999)

Standard Designation for Wrought Copper Alloys

  • C50000-C52999: Copper-Tin-Phosporus Alloys (Phosphor Bronzes)
  • C53000-C54999: Copper-Tin-Lead-Phosphorus Alloys (Leaded Phosphor Bronzes)
  • C55000-C55299: Copper-Phosphorus and Copper-Silver-Phosphorus Alloys (Brazing Alloys)
  • C55300-C60799: Copper-Silver-Zinc-Alloys
  • C60800-C64699: Copper-Aluminum Alloys (Aluminum Bronzes)
  • C64700-C66199: Copper-Silicon Alloys (Silicon Bronzes and Silicon Brasses)
  • C66200-C69999: Other Copper-Zinc Alloys

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Bronzes (C50000 - C69999)

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

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UNS # Cu Pb Sn Zn Fe P Ni Al Ag Mn Si Other Named Elements Status
Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max% Min%Max%
C50100*Rem(1)0.050.500.80.050.010.05active
C50150*
Copper Tin Phos Zirconium
99.0(2)0.500.80.0040.0150.04 Zr
0.08 Zr
active
C50200*Rem(1)0.051.01.50.100.04active
C50500*
Phosphor Bronze, 1.25% E
Rem(1)0.051.01.70.300.100.030.35active
C50510*Rem(3)1.01.50.100.250.020.070.150.40active
C50580*Rem(1)0.051.01.70.300.050.200.010.350.050.20active
C50590*97.0(1)0.020.501.50.500.050.400.020.15active
C50700*Rem(1)0.051.52.00.100.30active
C50705*96.5(1)0.021.52.00.500.100.400.040.15active
C50710*
MF202
Rem(1)1.72.30.150.100.40active
C50715*Rem(4)0.021.72.3(4)0.050.15(4)0.025(4)0.04active
C50725*94.0(1)0.021.52.51.53.00.050.200.020.06active
C50780*Rem(1)0.051.72.30.300.050.200.010.350.050.20active
C50800*
Tin Brass
Rem0.052.63.40.100.010.07inactive
03/92
C50900*Rem(1)0.052.53.80.300.100.030.30active
C51000*
Phosphor Bronze, 5% A
Rem(1)0.054.25.80.300.100.030.35active
C51080*Rem(1)0.054.85.80.300.050.200.010.350.050.20active
C51100*Rem(1)0.053.54.90.300.100.030.35active
C51180*Rem(1)0.053.54.90.300.050.200.010.350.050.20active
C51190*Rem(1)0.023.06.50.050.150.0250.0450.15 Co
active
C51800*
Phosphor Bronze
Rem(1)0.024.06.00.100.350.01active
C51900*Rem(1)0.055.07.00.300.100.030.35active
C51980*Rem(1)0.055.57.00.300.050.200.010.350.050.20active
C52100*
Phospher Bronze, 8% C
Rem(1)0.057.09.00.200.100.030.35active
C52180*Rem(1)0.057.09.00.300.050.200.010.350.050.20active
C52400*
Phospher Bronze 10% D
Rem(1)0.059.011.00.200.100.030.35active
C52480*Rem(1)0.059.011.00.300.050.200.010.350.050.20active
C52600*
Copper Tin Phosphorus Alloy
Rem0.052.23.30.200.100.030.351.02.0inactive
07/74
C52900*
Copper Tin Phosphorus Alloy
Rem0.057.09.00.200.100.030.351.02.0inactive
07/74
C53200
Tin Brass
Rem2.54.04.05.50.200.100.030.35inactive
03/92
C53400
Phosphor Bronze B-1
Rem(1)0.81.23.55.80.300.100.030.35active
C53800Rem(2)(5)0.400.613.113.90.120.0300.03(6)0.06active
C54400
Phosphor Bronze B-2
Rem(1)3.04.03.54.51.54.50.100.010.50active
C54600
Copper Tin Phosphorus Alloy
Rem3.54.63.54.51.54.50.50inactive
07/74
C54800
Tin Brass
Rem4.06.04.06.00.300.100.030.35inactive
03/92
C55180*Rem(7)4.85.2active
C55181*Rem(7)7.07.5active
C55185inactive
08/04
C55280*Rem(7)6.87.21.82.2active
C55281*Rem(7)5.86.24.85.2active
C55282*Rem(7)6.57.04.85.2active
C55283*Rem(7)7.07.55.86.2active
C55284*Rem(7)4.85.214.515.5active
C55285*
Copper-Silver Phosphorus Alloy Brazing Alloy
Rem(1)6.06.717.218.0active
C55385*Rem(7)6.07.06.07.00.010.40active
C55386*
Other Copper Brazing Alloy
Rem(7)5.56.56.87.23.05.0active
C56000Rem(1)30.034.029.031.0active
C60600*
Aluminum Bronze
Rem0.504.07.0inactive
03/92
C60700*
Copper-Aluminum Alloy Aluminum Bronze
Rem0.011.72.02.32.9inactive
03/92
C60800Rem(1)(5)0.100.105.06.50.02 As
0.35 As
active
C61000*Rem(5)(1)0.020.200.506.08.50.10active
C61200*
Copper Alumnum Alloy Aluminum Bronze
Rem0.057.09.0inactive
05/71
C61300*Rem(5)(2)0.010.200.500.10(8)2.03.00.0150.15(6)6.07.50.200.10active
C61400*Rem(5)(1)0.010.201.53.50.0156.08.01.0active
C61470
Aluminum Bronze Welding Electrode
Rem0.020.505.08.511.02.0inactive
05/71
C61500*Rem(1)(5)0.0151.82.2(6)7.78.3active
C61550*Rem(5)(1)0.050.050.201.52.5(6)5.56.51.0active
C61600*
Copper Aluminum Alloy Aluminum Bronze
Rem0.61.04.01.06.511.01.50.25inactive
05/71
C61700*
Copper Aluminum Alloy Aluminum Bronze
Rem2.01.01.52.07.02.010.0 Sb
inactive
05/71
C61800*Rem(1)(5)0.020.020.501.58.511.00.10active
C61810*
Aluminum Bronze
Rem0.020.020.501.58.511.00.10inactive
02/85
C61900*Rem(5)(1)0.020.60.83.04.58.510.0active
C62000*
Copper Aluminum Alloy Aluminum Bronze
Rem3.23.79.810.5inactive
05/71
C62200*Rem(1)(5)0.020.023.04.211.012.00.10active
C62300*
Aluminum Bronze, 9%
Rem(5)(1)0.62.04.01.0(6)8.510.00.500.25active
C62400*
Aluminum Bronze,11%
Rem(5)(1)0.202.04.510.011.50.300.25active
C62500*Rem(1)(5)3.55.512.513.52.0active
C62580*Rem(1)(5)0.020.023.05.012.013.00.04active
C62581*Rem(1)(5)0.020.023.05.013.014.00.04active
C62582*Rem(5)(1)0.020.203.05.014.015.00.04active
C62600*
Copper Aluminum Alloy Aluminum Bronze
Rem2.04.59.710.71.53.04.5inactive
05/71
C62700
Copper Aluminum Alloy
Reminactive
05/71
C62730*
Aluminum Bronze
Rem0.050.100.404.06.04.06.08.511.00.050.100.05 Mg
inactive
09/92
C62800*
Copper Aluminum Alloy Aluminum Bronze
Rem1.53.54.07.08.011.00.502.01.2inactive
05/71
C63000*
Aluminum Bronze
Rem(1)(5)0.200.302.04.04.0(6)5.59.011.01.50.25active
C63010*78.0(5)(2)0.200.302.03.54.5(6)5.59.710.91.5active
C63020*74.5(1)(5)0.030.250.304.05.54.26.0(6)10.011.01.50.20 Co
0.05 Cr
active
C63200*
Aluminum Bronze
Rem(5)(1)0.023.54.3(9)4.04.8(6)(9)8.79.51.22.00.10active
C63230*
Aluminum Bronze
75.984.40.023.05.04.05.58.59.53.50.10inactive
03/92
C63280*Rem(1)(5)0.023.05.04.0(6)5.58.59.50.63.5active
C63300*
Aluminum Bronze
Rem0.022.06.01.02.55.07.511.013.01.5inactive
03/92
C63380*Rem(5)(1)0.020.152.04.01.5(6)3.07.08.511.014.00.10active
C63400*
Aluminum Bronze
Rem(1)(5)0.050.200.500.150.15(6)2.63.20.250.450.09 As
active
C63500
Plus Bright Gold Copper Aluminum Zinc Alloy
Rem(5)(1)0.502.04.57.00.150.504.57.0active
C63600Rem(5)(1)0.050.200.500.150.15(6)3.04.00.71.30.15 As
active
C63700*
Copper Aluminum Alloy Aluminum Bronze
Rem(5)0.050.61.00.300.256.58.51.22.2inactive
05/71
C63800*Rem(1)(5)0.050.80.200.20(10)2.53.10.101.52.10.25 Co
0.55 Co
active
C63900*
Copper Aluminum Alloy Aluminum Bronze
Rem(5)0.051.06.58.01.53.0inactive
05/71
C64100
Copper Aluminum Alloy
Rem(5)inactive
05/71
C64110
Aluminum Bronze
Rem(5)1.02.08.011.00.50inactive
03/92
C64200*
Aluminum Bronze
Rem(5)(1)0.050.200.500.300.25(6)6.37.60.101.52.20.09 As
active
C64210*
Aluminum Silicon Bronze
Rem(1)(5)0.050.200.500.300.25(6)6.37.00.101.52.00.09 As
active
C64250*
Aluminum Bronze
Rem(5)1.05.57.50.500.03.0inactive
03/92
C64400*
Aluminum Bronze
Rem(5)0.030.100.200.054.2(6)5.03.54.50.81.3inactive
03/92
C64700*
Silicon Bronze
Rem(5)(1)0.090.500.101.62.2(6)0.400.8active
C64710*95.0(5)(1)0.200.502.93.5(6)0.100.500.9active
C64720*
Silicon Bronze
Rem(5)0.100.401.62.20.350.60.01 Mg
0.03 Mg
inactive
03/92
C64725*
Copper Silicon Alloy
95.0(1)(5)0.010.200.80.501.50.251.3(6)2.70.200.80.01 Ca
0.09 Cr
0.20 Mg
active
C64727*
Copper Silicon Alloy MAX375
Rem(1)(5)0.010.200.80.201.00.252.53.00.500.80.002 Mg
0.01 Ca
0.01 Cr
0.20 Mg
active
C64728*
Copper-Nickel-Zinc-Silicon Alloy
Rem(1)(5)0.050.101.00.102.00.202.03.60.300.9active
C64730*93.5(5)(1)1.01.50.200.502.9(6)3.50.100.500.9active
C64740*95.0(5)(1)0.011.52.50.201.00.251.02.0(6)0.050.500.01 Ca
0.05 Mg
active
C64745*
NKC164
Rem(1)(5)0.050.200.800.200.80.200.7(6)2.50.100.100.7active
C64750*Rem(11)(5)0.050.81.01.00.101.03.0(6)0.100.70.10 Mg
0.10 Zr
active
C64760*93.5(5)(1)0.020.300.202.50.402.5(6)0.050.60.05 Mg
active
C64770*Rem(5)(1)0.050.050.500.300.80.101.5(6)3.00.100.400.80.30 Mg
active
C64775
Copper-nickel-silicon
Rem(5)(1)0.050.051.00.300.80.101.53.5(6)0.100.400.90.50 Cr
0.30 Mg
active
C64780*90.0(1)(5)0.020.102.00.202.51.03.50.011.00.200.90.01 Cr
0.01 Mg
0.01 Ti
0.01 Zr
active
C64785*Rem(1)(5)0.0150.502.03.06.00.020.0150.401.6(10)3.06.00.201.00.15active
C64790Rem(5)(1)0.050.050.500.300.80.102.5(6)4.50.100.61.20.05 Cr
0.05 Mg
0.50 Cr
0.30 Mg
active
C64800*
NKC4419
Rem(1)(5)0.050.500.501.00.500.500.201.01.0 Co
3.0 Co
0.09 Cr
active
C64810
NKC4820
Rem(1)0.050.500.501.00.500.101.00.201.00.50 Co
3.0 Co
0.09 Cr
0.20 Mg
active
C64900*Rem(5)(1)0.051.21.60.200.100.10(6)0.100.81.2active
C65100*
Low-Silicon Bronze B
Rem(5)(1)0.051.50.80.70.82.0active
C65300*
Silicon Bronze
Rem(5)0.050.082.02.6active
C65400Rem(1)(5)0.051.21.90.502.73.40.01 Cr
0.12 Cr
active
C65500*
High-Silicon Bronze A
Rem(1)(5)0.051.50.80.6(6)0.501.32.83.8active
C65600*Rem(5)(1)0.021.51.50.500.011.52.84.0active
C65620*
Silicon Bronze
90.0(5)1.54.01.02.00.101.02.44.0inactive
03/92
C65700
Copper Silicon Alloy
inactive
11/74
C65800*
Silicon Bronze
Rem(5)0.050.250.60.501.32.53.8inactive
03/92
C66100Rem(1)(5)0.200.81.50.251.52.83.5active
C66200*86.691.0(1)(5)0.050.200.7Rem0.050.050.200.30(6)1.0active
C66300*84.5(1)(5)87.50.051.53.0Rem1.42.4(12)0.350.20 Co(12)
active
C66400*Rem(1)(5)0.0150.0511.012.01.3(13)1.70.30 Co(13)
0.7 Co
active
C66410*Rem(5)(1)0.0150.0511.012.01.82.3active
C66420*Rem(1)(5)12.717.00.501.5active
C66430*Rem(1)(5)0.050.60.913.015.00.60.90.10active
C66500*
Copper Zinc Alloy
80.082.0(5)0.05Rem0.100.71.5inactive
02/72
C66700*
Manganese Brass
68.571.5(1)(5)0.07Rem0.100.81.5active
C6680060.0(5)(1)63.00.500.30Rem0.350.25(6)0.252.03.50.501.5active
C66850*
Copper Zinc Alloy
60.0(5)(1)64.00.090.6Rem0.501.50.050.50(6)0.501.54.08.0active
C66900*
Manganese Brass
62.5(2)(5)64.50.05Rem0.2511.512.5active
C66908*
Copper-Zinc-Manganese
Rem(14)(1)0.050.506.09.00.012.00.013.50.254.07.0active
C66910*
Copper-Zinc-Manganese
Rem(14)(1)0.050.056.08.00.011.50.013.50.2512.015.00.01 Co
0.15 Ti
0.15 Zr
0.05 Nb
active
C66913*
Copper-Zinc-Manganese
Rem(14)(1)0.050.508.012.50.011.50.013.50.2512.015.00.01 Co
active
C66915*
Copper-Zinc-Manganese
Rem(1)(14)0.050.508.012.50.011.50.013.50.2512.015.00.01 Co
0.50 Co
active
C66920*
White Alloy
66.0(15)(14)70.0.0910.014.0.63.06.0(6)12.016.0.05.10 Sb
.10 C
.25 S
1.0 Sb
active
C66925*
Copper-Zinc-Manganese
Rem(14)(1)0.050.5017.021.00.500.013.50.258.011.00.01 Co
active
C66930*
Copper-Manganese Alloy
Rem(5)(16)0.020.050.050.050.020.02(6)19.020.5active
C66950*Rem(1)(5)0.0114.015.00.501.01.514.015.0active
C67000
Manganese Bronze B
63.0(1)(5)68.00.200.50Rem2.04.03.06.02.55.0active
C67100
Copper Zinc Alloy
59.0(5)62.00.150.350.501.0Rem0.200.80.050.25inactive
02/72
C67130
Copper Zinc
56.059.0(5)0.501.50.501.5Rem0.501.50.101.00.501.5inactive
03/92
C67200
Copper Zinc Alloy
57.561.0(5)0.05Rem0.254.06.06.08.0inactive
12/72
C6730058.0(1)(5)63.00.403.00.30Rem0.500.25(6)0.252.03.50.501.5active
C6734060.0(2)(5)63.50.10Rem0.200.70.200.6(6)0.501.01.52.00.501.0active
C6740057.060.0(1)(5)0.500.30Rem0.350.25(6)0.502.02.03.50.501.5active
C67410
Copper Zinc
55.059.0(5)0.80.50Rem1.02.01.32.31.02.40.71.3active
C6742057.058.5(1)(5)0.250.80.35Rem0.150.550.25(6)1.02.01.52.50.250.7active
C67500
Manganese Bronze A
57.060.0(5)(1)0.200.501.5Rem0.82.00.250.050.50active
C6760057.060.0(5)(1)0.501.00.501.5Rem0.401.30.050.50active
C67610
Copper Zinc
56.0(5)59.00.501.50.501.0Rem0.501.50.401.00.51.5inactive
02/81
C67620
Copper Zinc
55.057.0(5)0.501.5Rem0.501.21.02.0inactive
03/92
C67700
Copper Zinc
55.558.0(5)0.501.0Rem0.71.51.52.30.050.300.40 As
0.8 As
inactive
03/92
C67800
Copper Zinc
56.059.0(5)0.300.20Rem0.71.50.501.50.200.6inactive
03/92
C67810
Copper Zinc
56.559.5(5)1.00.5041.9Rem1.01.50.401.60.401.80.6inactive
03/92
C67820
Copper Zinc
56.559.5(5)0.100.301.0Rem0.501.20.301.20.302.0inactive
03/92
C67830
Copper Zinc
56.060.0(5)0.501.50.201.0Rem0.501.20.301.50.302.0inactive
02/81
C67900
Copper Zinc Alloy
49.052.0(5)0.50Rem1.052.53.05.07.58.5inactive
02/72
C68000
Bronze, Low Fuming (Nickel)
56.060.0(5)(1)0.050.751.10Rem0.251.250.200.8(6)0.010.010.500.040.15active
C68100
Bronze, Low Fuming
56.060.0(1)(5)0.050.751.10Rem0.251.30.010.010.500.040.15active
C68200
Copper Zinc
58.060.0(5)Rem0.61.00.070.15inactive
03/92
C68300*
Copper-Znc Alloy Silicon Modified Brass
59.0(1)(5)63.00.090.050.20Rem0.301.00.30 Sb
0.01 Cd
1.0 Sb
active
C6832059.065.0(5)(1)0.250.50Rem0.300.200.20(6)0.090.050.500.02 As
0.16 As
active
C68350*
Low Silicon Brass
59.064.0(1)(5)0.090.6Rem0.150.050.400.20(6)0.300.301.0active
C68400*59.064.0(5)(1).09.50Rem1.0.03.30.50(6).50.201.51.52.5.001 B
.03 B
active
C68410*59.064.0(1).09.50Rem1.0.03.30.50(6).50.201.51.01.5.001 B
.03 B
active
C68600
Copper Zinc
56.060.0(5)0.501.50.201.0Rem0.501.20.301.50.302.0active
C68700*
Aluminum Brass, Arsenical
76.0(5)(1)79.00.07Rem0.061.82.50.02 As
0.06 As
active
C68800*Rem(5)(1)0.0521.3(17)24.10.203.03.8(17)0.25 Co
0.55 Co
active
C68900*
Copper Zinc Alloy
65.067.0(5)0.03Rem0.81.40.021.12.0inactive
02/72
C69000*
Copper Zinc
72.074.5(1)(5)0.025Rem0.050.0250.500.8(6)3.33.5inactive
03/92
C69050*70.075.0(1)(5)Rem0.501.5(6)3.04.00.100.60.01 Zr
0.20 Zr
active
C69100*81.084.0(5)(1)0.050.10Rem0.250.8(6)1.40.71.20.100.81.3active
C69150*
Copper Zinc Alloy Copper Zinc Alloy
82.5(5)(18)87.50.050.025Rem0.250.20(6)0.71.30.250.60.02active
C69200*
Copper Zinc Alloy
89.091.0(5)0.05Rem0.050.81.8inactive
02/72
C69220*
Copper Zinc Alloy
69.0(5)(1)71.00.080.30Rem0.100.050.200.20(6)0.81.81.82.60.10 Sb
active
C69230*70.073.0(5)(1).08.20Rem.10.20.10(6).10.83.03.6.10 Ca
.15 Ca
active
C6924071.0(1)72.50.250.30Rem0.200.060.120.10(6)0.500.61.21.82.2active
C69250*
Copper-Zinc-Manganese
Rem(1)(14)0.050.207.58.50.202.03.01.02.05.06.00.10active
C69300*
ECO Brass
73.0(5)(1)77.00.090.20Rem0.100.040.150.10(6)0.102.73.4active
C69310*
SnEco
74.0(1)(5)79.0.09.30.7Rem.10.04.15.20(6).102.63.4active
C6935073.077.0(1)(5).20.20Rem.10.50.04.10.10(6).10.103.03.4active
C69400
Silicon Red Brass
80.0(1)(5)83.00.30Rem0.203.54.5active
C6943080.083.0(5)(1)0.30Rem0.203.54.50.03 As
0.06 As
active
C69440
Copper Zinc
80.083.0(5)0.30Rem0.203.54.50.03 Sb
0.06 Sb
active
C69450
Copper Zinc
80.0(5)83.00.30Rem0.200.030.060.403.54.5active
C6970075.080.0(5)(1)0.501.5Rem0.200.402.53.5active
C6971075.0(1)(5)80.00.501.5Rem0.200.402.53.50.03 As
0.06 As
active
C69720
Copper Zinc
75.080.0(5)0.501.5Rem0.200.402.53.50.03 Sb
0.06 Sb
inactive
03/92
C69730
Copper Zinc
75.0(5)80.00.501.5Rem0.200.030.062.53.5inactive
03/92
C6975078.0(5)(1)83.00.81.30.05Rem0.050.020.01(6)0.051.92.22active
C69800
Copper Zinc
66.0(5)70.00.8Rem0.400.500.71.3inactive
03/92
C69900
Copper Zinc
Rem(5)0.020.140.100.101.42.30.1040.048.00.01 As
0.05 C
0.05 Cd
0.20 Co
inactive
03/92
C69910
Copper Zinc
Rem(5)0.013.05.01.01.40.250.828.032.0inactive
03/92
C69950
Copper Zinc
51.054.0(5)8.510.536.040.0inactive
03/92

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

(1) = Cu + Sum of Named Elements 99.5% min.
(2) = Cu + Sum of Named Elements 99.8% min.
(3) = Cu + Sum of Named Elements 99.7% min.
(4) = Cu + Sn + Fe + P 99.5% min
(5) = Cu value includes Ag.
(6) = Ni value includes Co.
(7) = Cu + Sum of Named Elements 99.85% min.
(8) = When the product is for subsequent welding applications and is so specified by the purchaser, Cr, Cd, Zr, and Zn shall each be 0.05%max.
(9) = Fe content shall not exceed Ni content.
(10) = Not including Co.
(11) = Cu + Sum of Named Elements, 99.92% min.
(12) = Fe + Co, 1.4 - 2.4%
(13) = Fe + Co 1.8 - 2.3%.
(14) = Not including Ag.
(15) = Cu + Sum of Named Elements 99.3% min.
(16) = Cu + Sum of Named Elements 99.9% min.
(17) = Al + Zn 25.1 - 27.1%.
(18) = Cu + Sum of Named Elements 99.6% min.