BS EN 1982 Copper and Copper Alloy Ingots and Castings—Compositions, Properties, Processes and Uses

Copper and copper alloy ingots and castings are specified according to BS EN 1982. Compositions, mechanical properties, applicable casting processes and characteristics and uses are given in these tables below, for castings. The EN designations for castings begin ‘CC’ and the EN symbols end in ‘-C’. For ingots, the EN designations begin ‘CB’ and the EN symbols end in ‘-B’.

The first table shows compositions of copper alloy castings, with range or maximum for each element. Note that not all elements listed as impurities are shown here. For the full chemical composition you should refer to the standard or the Copper and copper alloys. Compendium of compositions and products PD CEN/TS 13388. The second gives typical minimum mechanical properties and applicable casting processes.

Where alloys are approved for drinking water contact (see full list of 4MS copper and copper alloy materials), this is indicated in the characteristics and uses column.

Note there might be slight variations between compositions of castings and ingots of the same alloy, and that, for castings, properties can vary significantly between processes. For more detail, the appropriate standard(s) should be consulted. Visit our page with details of standards and links to the BSI shop.

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Copper and Copper Alloy Ingots and Castings: Compositions and Uses

DescriptionEN Number
for Castings
EN Symbol
for Castings
Nearest
Equiv.
in Old
BS 1400
Cu
%
Al
%
Fe
%
Mn
%
Ni
%
P
%
Pb
%
Si
%
Sn
%
Zn
%
Others
%
Characteristics and Uses
CopperCC040ACu-CHCC1Not
specified
----------Composition of this copper grade is not specified. Electrical and thermal applications. Additionally specified by min. conductivity requirements, e.g. 93-99% IACS
Copper Alloys, Low AlloyedCC140CCuCr1-CCC1-TFRem.---------0.4-1.2 CrElectrical and thermal applications. Additionally specified by min. conductivity requirements, e.g. 93-99% IACS
Miscellaneous Copper AlloysCC212ECuMn11Al8Fe3Ni3-CCMA168.0-77.07.0-9.02.0-4.08.0-15.01.5-4.5-0.050.10.51.0Seawater handling components, propellers.
Miscellaneous Copper AlloysCC245ECuSi4Zn4MnP-C-Rem0.30.30.03-0.0905-0.100.05-0.150.102.5-4.50.31.0-7.0-Approved for drinking water contact under 4MS. Water fittings and valves.
Miscellaneous Copper AlloysCC246ECuSi4Zn9MnP-C-Rem0.30.30.03-0.0905-0.100.05-0.150.102.5-4.50.37.0-11.0-Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-aluminium Alloys (Aluminium Bronze)CC330GCuAl9-C-88.0-92.08.0-10.51.20.501.0-0.300.200.300.50-Resists tarnishing. Building and decorative components.
Copper-aluminium Alloys (Aluminium Bronze)CC331GCuAl10Fe2-CAB183.0-89.58.5-10.51.5-3.51.01.5-0.100.20.200.50-Strong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC332GCuAl10Ni3Fe2-C-80.0-86.08.5-10.51.0-3.02.01.5-4.0-0.100.20.200.50-For castings intended to be welded, the max. Pb content shall be 0.03%. Strong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC333GCuAl10Fe5Ni5-CAB276.0-83.08.5-10.54.0-5.53.04.0-6.0-0.030.10.10.500.05 CrFor permanent mould castings, the min. Fe content shall be 3.0% and the min. Ni shall be 3.7%.Strong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC334GCuAl11Fe6Ni6-C-72.0-82.510.0-12.04.0-7.02.54.0-7.5-0.050.10.20.50-Strong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-nickel AlloysCC380HCuNi10Fe1Mn1-C-84.5 Min.0.011.0-1.81.0-1.59.0-11.0-0.030.10-0.5-High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC381HCuNi30Fe1Mn1-C-64.5 Min0.010.5-1.50.6-1.229.0-31.00.010.030.1-0.5-High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC382HCuNi30Cr2FeMnSi-CCN1Rem.0.010.5-1.00.5-1.029.0-32.00.010.0050.15-0.50-0.21.5 -2.0 Cr
0.25 Ti
0.15 Zr
High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC383HCuNi30Fe1Mn1NbSi-CCN2Rem.0.010.5-1.50.6-1.229.0-31.00.010.010.3-0.7-0.500.5-1.0 Nb
High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC480KCuSn10-CCT188.0-90.00.010.20.102.00.21.00.029.0-11.00.50.2 Sb
Gears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC481KCuSn11P-CPB187.0-89.50.010.100.050.100.5-1.00.250.0110.0-11.50.050.05 SbGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC482KCuSn11Pb2-C-83.5-87.00.010.200.22.00.400.7-2.50.0110.5-12.52.00.2 SbGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals. Lead gives improved machinability.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC483KCuSn12-CPB285.0-88.50.010.20.22.00.600.70.0111.0-13.00.50.15 SbGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC484KCuSn12Ni2-CCT284.5-87.50.010.200.21.5-2.50.05-0.400.30.0111.0-13.00.40.1 SbGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals. Nickel increases strength and hardness.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC490KCuSn3Zn8Pb5-CLG181.0-86.00.010.5-2.00.053.0-6.00.012.0-3.57.0-9.50.30 SbLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC491KCuSn5Zn5Pb5-CLG283.0-87.00.010.3-2.00.104.0-6.00.014.0-6.04.0-6.00.25 SbLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC492KCuSn7Zn2Pb3-CLG485.0-89.00.010.2-2.00.102.5-3.50.016.0-8.01.5-3.00.25 SbLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC493KCuSn7Zn4Pb7-C-81.0-85.00.010.2-2.00.105.0-8.00.016.0-8.02.0-5.00.3 SbLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC494KCuSn5Pb9-CLB480.0-87.00.010.250.22.00.108.0-10.00.014.0-6.02.00.5 SbLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC495KCuSn10Pb10-CLB278.0-82.00.010.250.22.00.108.0-11.00.019.0-11.02.00.5 SbLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC496KCuSn7Pb15-CLB174.0-80.00.010.250.200.5-2.00.1013.0-17.00.016.0-8.02.00.5 SbLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC497KCuSn5Pb20-CLB570.0-78.00.010.250.200.5-2.50.1018.0-23.00.014.0-6.02.00.75 SbLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC498KCuSn6Zn4Pb2-C-86.0-90.00.010.25-1.00.051.0-2.00.015.5-6.53.0-5.00.25 SbApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC499KCuSn5Zn5Pb2-C-84.0-88.00.010.30-0.600.043.00.014.0-6.04.0-6.00.10 SbApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC750SCuZn33Pb2-CSCB363.0-67.00.010.80.21.00.051.0-3.00.051.5Rem.-General purpose applications, including electrical. Conductivity IACS 20%
Copper-zinc Alloys, (Complex Brasses)CC751SCuZn33Pb2Si-CDZR263.5-66.00.100.25-0.50.150.8-0.8-2.20.65-1.10.8Rem.0.05 SbDezincification resistant. Water fittings for aggressive waters (not approved for drinking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC752SCuZn35Pb2Al-CDZR161.5-64.50.3-0.700.30.10.2-1.5-2.20.020.3Rem.0.04-0.14 As
0.14 Sb
Dezincification resistant. Water fittings for aggressive waters (not approved for drinking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC753SCuZn37Pb2Ni1AlFe-C-58.0-61.00.4-0.80.5-0.80.200.5-1.20.021.8-2.500.050.8Rem.0.05 Sb Fine grained, freely machinable.
Copper-zinc Alloys, (Complex Brasses)CC754SCuZn39Pb1Al-CDCB358.0-63.00.80.70.51.00.020.5-2.50.051.0Rem.-Conductivity IACS 20%. General & electrical purposes.
Copper-zinc Alloys, (Complex Brasses)CC755SCuZn39Pb1AlB-C-59.5-61.00.4-0.70.05-0.20.050.2-1.2-1.70.050.3Rem.-Conductivity IACS 20%. Boron is used for grain refining, to give added strength for thin sections. General & electrical purposes.
Copper-zinc Alloys, (Complex Brasses)CC757SCuZn39Pb1AlB-C-58.0-63.00.3-0.90.30.050.2-0.2-1.50.050.5Rem.-Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC760SCuZn15As-CSCB683.0-88.00.010.150.10.1-0.50.020.3Rem.0.05-0.15 AsBrazable. Good corrosion resistance.
Copper-zinc Alloys, (Complex Brasses)CC761SCuZn16Si4-C-78.0-83.00.10.60.21.00.030.83.0-5.00.3Rem.0.05 Sb Silicon brass for valves and water fittings (not approved for driking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC762SCuZn25Al5Mn4Fe3-CHTB360.0-67.03.0-7.01.5-4.02.5-5.03.00.030.20.10.2Rem.0.03 Sb High tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC763SCuZn32Al2Mn2Fe1-C-59.0-67.01.0-2.50.5-2.01.0-3.52.5-1.51.01.0Rem.0.08 Sb High tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC764SCuZn34Mn3Al2Fe1-C-55.0-66.01.0-3.00.5-2.51.0-4.03.00.030.30.10.3Rem.0.05 Sb High tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC765SCuZn35Mn2Al1Fe1-CHTB157.0-65.00.5-2.50.5-2.00.5-3.06.00.030.50.11.0Rem.0.08 Sb High tensile brasses. Conductivity IACS 20%
Copper-zinc Alloys, (Complex Brasses)CC766SCuZn37Al1-C-60.0-64.00.3-1.80.50.52.0-0.050.60.50Rem.0.1 SbGeneral purpose, high quality engineering applications.
Copper-zinc Alloys, (Complex Brasses)CC767SCuZn38Al-CDCB159.0-64.00.1-0.80.50.51.0-0.10.20.1Rem.-General purpose, high quality engineering applications.
Copper-zinc Alloys, (Complex Brasses)CC768SCuZn21Si3P-C-75.0-77.00.050.30.050.20.02-0.100.12.7-3.50.3Rem.-Lead free, machinability 80%. Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC770SCuZn36Pb-C-62.0-64.00.5-0.70.30.10.2-0.2-1.6-0.3Rem.0.04-0.14 As Dezincification resistant. Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC771SCuZn36AlAsSb-C-62.0-65.00.45-0.70.20.10.2-0.20.020.3Rem.0.02-0.04 As
0.02-0.05 Sb
Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC772SCuZn36Pb1AlAsSb-C-62.0-65.00.45-0.70.20.10.2-0.2-1.10.020.3Rem.0.02-0.04 As
0.03-0.06 Sb
Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC773SCuZn42Al-C-57.0-59.00.1-0.30.30.020.020.020.10.020.3Rem.0.02 Sb Approved for drinking water contact under 4MS. Water fittings and valves.
Copper and copper alloy ingots and castings: compositionscopperalliance.org.uk

Table Notes:
Compositions are given as either a range or a maximum.

Copper and Copper Alloy Ingots and Castings: Properties, Processes and Uses

DescriptionEN Number
for Castings
EN Symbol
for Castings
Nearest
Equiv.
in Old
BS 1400
0.2%
Proof
Strength
(N/mm2 )
Tensile
Strength
(N/mm2 )
Elongation
(%)
Hardness
(HB)
GM
Die Casting
GS
Sand

GZ
Centrifugal
GP
Pressure Die
GC
Continuous
Characteristics and Uses
CopperCC040ACu-CHCC1401502540YesYes---Electrical and thermal applications. Additionally specified by minimum conductivity requirements, e.g. 93-99% IACS
Copper Alloys, Low AlloyedCC140CCuCr1-CCC1-TF2503501095YesYes---Electrical and thermal applications. Additionally specified by minimum conductivity requirements, e.g. 93-99% IACS
Miscellaneous Copper AlloysCC212ECuMn11Al8Fe3Ni3-CCMA127563018150-Yes---Seawater handling components, propellers.
Miscellaneous Copper AlloysCC245ECuSi4Zn4MnP-C-1002801875-Yes--YesApproved for drinking water contact under 4MS. Water fittings and valves.
Miscellaneous Copper AlloysCC246ECuSi4Zn9MnP-C-1203001680-Yes--YesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-aluminium Alloys (Aluminium Bronze)CC330GCuAl9-C-17047015100Yes-Yes--Resists tarnishing. Building and decorative components.
Copper-aluminium Alloys (Aluminium Bronze)CC331GCuAl10Fe2-CAB120055018130YesYesYes-YesStrong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC332GCuAl10Ni3Fe2-C-22055020120YesYesYes-YesStrong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC333GCuAl10Fe5Ni5-CAB228065012150YesYesYes-YesStrong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-aluminium Alloys (Aluminium Bronze)CC334GCuAl11Fe6Ni6-C-3807505185YesYesYes--Strong, corrosion resistant. Seawater-pumps, bearings, propellers, heat exchangers, pipework
Copper-nickel AlloysCC380HCuNi10Fe1Mn1-C-1002802570-YesYes-YesHigh strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC381HCuNi30Fe1Mn1-C-1203401880-YesYes--High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC382HCuNi30Cr2FeMnSi-CCN125044018115-Yes---High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-nickel AlloysCC383HCuNi30Fe1Mn1NbSi-CCN223044018115-Yes---High strength and corrosion resistance for the most arduous marine applications. Pipe fittings and flanges in chemical engineering.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC480KCuSn10-CCT11602701080YesYesYes-YesGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC481KCuSn11P-CPB1170310485YesYesYes-YesGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC482KCuSn11Pb2-C-150280590-YesYes-YesGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals. Lead gives improved machinability.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC483KCuSn12-CPB2150270585YesYesYes-YesGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC484KCuSn12Ni2-CCT21803001095-YesYes-YesGears and general bearing applications offering higher corrosion/erosion resistance than gunmetals. Nickel increases strength and hardness.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC490KCuSn3Zn8Pb5-CLG11002201270-YesYes-YesLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC491KCuSn5Zn5Pb5-CLG21102301065YesYesYes-YesLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC492KCuSn7Zn2Pb3-CLG41302401270YesYesYes-YesLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC493KCuSn7Zn4Pb7-C - 1202401270YesYesYes-YesLeaded gunmetals giving good corrosion resistance with moderate strength and good castability. Applications include pumps, valves and bearings.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC494KCuSn5Pb9-CLB480200660YesYesYes-YesLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC495KCuSn10Pb10-CLB2110220565YesYesYes-YesLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC496KCuSn7Pb15-CLB190200865-YesYes-YesLeaded tin bronzes whose plasticity increases with lead content .
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC497KCuSn5Pb20-CLB575175650-YesYes-YesLeaded tin bronzes whose plasticity increases with lead content.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC498KCuSn6Zn4Pb2-C-1102201270YesYesYes-YesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-tin Alloys (Gunmetal, Phosphor Bronze and Leaded Bronze)CC499KCuSn5Zn5Pb2-C-1102201365YesYesYes-YesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC750SCuZn33Pb2-CSCB3701801245-YesYes--General purpose applications, including electrical. Conductivity IACS 20%
Copper-zinc Alloys, (Complex Brasses)CC751SCuZn33Pb2Si-CDZR22804005110---Yes-Dezincification resistant. Water fittings for aggressive waters (not approved for drinking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC752SCuZn35Pb2Al-CDZR11202801070Yes-Yes--Dezincification resistant. Water fittings for aggressive waters (not approved for drinking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC753SCuZn37Pb2Ni1AlFe-C - 1503001590Yes----Fine grained, freely machinable.
Copper-zinc Alloys, (Complex Brasses)CC754SCuZn39Pb1Al-CDCB31202801070YesYesYesYes-Conductivity IACS 20%. General & electrical purposes.
Copper-zinc Alloys, (Complex Brasses)CC755SCuZn39Pb1AlB-C - 1803501090Yes--Yes-Conductivity IACS 20%. Boron is used for grain refining, to give added strength for thin sections. General & electrical purposes.
Copper-zinc Alloys, (Complex Brasses)CC757SCuZn39Pb1AlB-C-1403101590YesYes-YesYesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC760SCuZn15As-CSCB6701602045-Yes---Brazable. Good corrosion resistance.
Copper-zinc Alloys, (Complex Brasses)CC761SCuZn16Si4-C - 3005008130YesYes-Yes-Silicon brass for valves and water fittings (not approved for driking water contact under 4MS)
Copper-zinc Alloys, (Complex Brasses)CC762SCuZn25Al5Mn4Fe3-CHTB34807505190YesYesYes-YesHigh tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC763SCuZn32Al2Mn2Fe1-C - 2004308110-Yes-Yes-High tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC764SCuZn34Mn3Al2Fe1-C - 26060012140YesYesYes--High tensile brasses.
Copper-zinc Alloys, (Complex Brasses)CC765SCuZn35Mn2Al1Fe1-CHTB120048018110YesYesYes-YesHigh tensile brasses. Conductivity IACS 20%
Copper-zinc Alloys, (Complex Brasses)CC766SCuZn37Al1-C - 17045025105Yes----General purpose, high quality engineering applications.
Copper-zinc Alloys, (Complex Brasses)CC767SCuZn38Al-CDCB11303803075Yes----General purpose, high quality engineering applications.
Copper-zinc Alloys, (Complex Brasses)CC768SCuZn21Si3P-C-1404202080YesYes--YesLead free, machinability 80%. Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC770SCuZn36Pb-C-110280570Yes--Yes-Dezincification resistant. Approved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC771SCuZn36AlAsSb-C-130310570----YesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC772SCuZn36Pb1AlAsSb-C-1503803080----YesApproved for drinking water contact under 4MS. Water fittings and valves.
Copper-zinc Alloys, (Complex Brasses)CC773SCuZn42Al-C-1203001580Yes----Approved for drinking water contact under 4MS. Water fittings and valves.
Copper and copper alloy ingots and castings: properties, processes, characteristics and usescopperalliance.org.uk

Table Notes:
Symbol finishes ‘B’ for material in ingot form
Number begins ‘CB’ for material in ingot form
Ingots are not specified for high conductivity coppers
1N/mm2 = 1MPa

GC – continuous casting
GM – permanent mould casting
GP – pressure die casting
GS – sand casting
GZ – centrifugal casting