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)1.54.01.02.00.101.02.44.0active
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
inactive
03/92
C69450
Copper Zinc
80.0(5)83.00.30Rem0.200.030.060.403.54.5inactive
03/92
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.