This table shows all of the wrought copper alloys available under the BS EN designation system together with a basic chemical description of the grade and the old British Standard equivalent for comparison where applicable.
The copper alloy grades are listed in numerical order based on their European designation within their respective alloy groups. This material designation can be broken down into sections (see Understanding the Copper Alloy BS EN Material Designation System) but it ultimately defines the alloy composition range.
Most of the alloy grades listed below are specified within manufacturing standards and meet certain mechanical, physical and corrosion resistance criteria. However, note that some of the alloys listed are not currently included in any manufacturing specifications, but are included for completeness as the alloy still exists and can be specified on agreement with a manufacturer.
| Description | EN Number |
EN Symbol |
Nearest Old BS Equiv. |
Technical Data and Standards |
| Low Alloyed Coppers—Heat-Treatable | CW100C | CuBe1.7 | CB101 | More |
| Low Alloyed Coppers—Heat-Treatable | CW101C | CuBe2 | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW102C | CuBe2Pb | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW103C | CuCo1Ni1Be | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW104C | CuCo2Be | C112 | More |
| Low Alloyed Coppers—Heat-Treatable | CW105C | CuCr1 | CC101 | More |
| Low Alloyed Coppers—Heat-Treatable | CW106C | CuCr1Zr | CC102 | More |
| Low Alloyed Coppers—Heat-Treatable | CW108C | CuNi1P | C113 | More |
| Low Alloyed Coppers—Heat-Treatable | CW109C | CuNi1Si | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW110C | CuNi2Be | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW111C | CuNi2Si | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW112C | CuNi3Si1 | - | More |
| Low Alloyed Coppers—Heat-Treatable | CW120C | CuZr | - | More |
| Low Alloyed Coppers—Non Heat-treatable - Free Machining | CW113C | CuPb1P | - | More |
| Low Alloyed Coppers—Non Heat-treatable - Free Machining | CW114C | CuSP | C111 | More |
| Low Alloyed Coppers—Non Heat-treatable - Free Machining | CW118C | CuTeP | C109 | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW107C | CuFe2P | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW115C | CuSi1 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW116C | CuSi3Mn | CS101 | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW117C | CuSn0.15 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW119C | CuZn0.5 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | - | CuCd | C108 | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW124C | CuSi3Zn2P | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW125C | CuFe0.15Sn0.1P | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW127C | CuMg0.2 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW128C | CuMg0.5 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW129C | CuSn0.2 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW130C | CuCd0.7 | - | More |
| Low Alloyed Coppers—Non Heat-treatable—Other | CW131C | CuCd1.0 | - | More |
| Copper-tin (phosphor bronze) | CW450K | CuSn4 | PB101 | More |
| Copper-tin (phosphor bronze) | CW451K | CuSn5 | PB102 | More |
| Copper-tin (phosphor bronze) | CW452K | CuSn6 | PB103 | More |
| Copper-tin (phosphor bronze) | CW453K | CuSn8 | PB104 | More |
| Copper-tin (phosphor bronze) | CW454K | CuSn3Zn9 | - | More |
| Copper-tin (phosphor bronze) | CW455K | CuSn4Pb2P | - | More |
| Copper-tin (phosphor bronze) | CW456K | CuSn4Pb4Zn4 | - | More |
| Copper-tin (phosphor bronze) | CW457K | CuSn4Te1P | - | More |
| Copper-tin (phosphor bronze) | CW458K | CuSn5Pb1 | - | More |
| Copper-tin (phosphor bronze) | CW459K | CuSn8P | - | More |
| Copper-tin (phosphor bronze) | CW460K | CuSn8PbP | - | More |
| Copper-zinc (brass) | CW500L | CuZn5 | CZ125 | More |
| Copper-zinc (brass) | CW501L | CuZn10 | CZ101 | More |
| Copper-zinc (brass) | CW502L | CuZn15 | CZ102 | More |
| Copper-zinc (brass) | CW503L | CuZn20 | CZ103 | More |
| Copper-zinc (brass) | CW504L | CuZn28 | - | More |
| Copper-zinc (brass) | CW505L | CuZn30 | CZ106 | More |
| Copper-zinc (brass) | CW506L | CuZn33 | - | More |
| Copper-zinc (brass) | CW507L | CuZn36 | CZ107 | More |
| Copper-zinc (brass) | CW508L | CuZn37 | CZ108 | More |
| Copper-zinc (brass) | CW509L | CuZn40 | CZ109 | More |
| Copper-zinc (brass) | CW510L | CuZn42 | - | More |
| Copper-zinc (brass) | CW511L | CuZn38As | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW600N | CuZn35Pb1 | CZ118 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW601N | CuZn35Pb2 | CZ119 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW601N | CuZn35Pb2 | CZ131 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW602N | CuZn36Pb2As | CZ132 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW603N | CuZn36Pb3 | CZ124 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW604N | CuZn37Pb0.5 | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW605N | CuZn37Pb1 | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW606N | CuZn37Pb2 | CZ119 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW606N | CuZn37Pb2 | CZ131 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW607N | CuZn38Pb1 | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW608N | CuZn38Pb2 | CZ120 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW608N | CuZn38Pb2 | CZ128 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW609N | CuZn38Pb4 | CZ121Pb4 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW610N | CuZn39Pb0.5 | CZ123 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW610N | CuZn39Pb0.5 | CZ137 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW611N | CuZn39Pb1 | CZ129 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW612N | CuZn39Pb2 | CZ120 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW612N | CuZn39Pb2 | CZ128 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW613N | CuZn39Pb2Sn | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW614N | CuZn39Pb3 | CZ121Pb3 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW615N | CuZn39Pb3Sn | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW616N | CuZn40Pb1Al | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW617N | CuZn40Pb2 | CZ122 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW618N | CuZn40Pb2Al | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW619N | CuZn40Pb2Sn | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW620N | CuZn41Pb1Al | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW621N | CuZn42PbAl | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW622N | CuZn43Pb1Al | More | |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW623N | CuZn43Pb2 | CZ130 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW624N | CuZn43Pb2Al | CZ130 | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW625N | CuZn35Pb1.5AlAs | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | CW626N | CuZn33Pb1.5AlAs | - | More |
| Copper-zinc-lead Alloys (Leaded Brasses) | - | - | CZ104 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW700R | CuZn13Al1Ni1Si1 | CZ127 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW702R | CuZn20Al2As | CZ110 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW706R | CuZn28Sn1As | CZ111 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW707R | CuZn30As | CZ126 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW707R | CuZn30As | CZ105 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW709R | CuZn32Pb2AsFeSi | - | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW711R | CuZn36Pb2Sn1 | CZ134 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW712R | CuZn36Sn1Pb | CZ112 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW714R | CuZn37Pb1Sn1 | - | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW715R | CuZn38AlFeNiPbSn | - | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW717R | CuZn38Sn1As | - | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
CW719R | CuZn39Sn1 | CZ133 | More |
| Copper-zinc Alloys (Special Brasses) —(Corrosion Resistant Alloys) |
- | - | CZ113 | More |
| High Tensile Brasses | CW704R | CuZn23Al6Mn4Fe3Pb | - | More |
| High Tensile Brasses | CW705R | CuZn25Al5Fe2Mn2Pb | CZ116 | More |
| High Tensile Brasses | CW708R | CuZn31Si1 | - | More |
| High Tensile Brasses | CW710R | CuZn35Ni3Mn2AlPb | - | More |
| High Tensile Brasses | CW713R | CuZn37Mn3Al2PbSi | CZ135 | More |
| High Tensile Brasses | CW718R | CuZn39Mn1AlPbSi | - | More |
| High Tensile Brasses | CW721R | CuZn40Mn1Pb1AlFeSn | CZ114 | More |
| High Tensile Brasses | CW722R | CuZn40Mn1Pb1FeSn | CZ115 | More |
| Other Brasses | CW701R | CuZn19Sn | - | More |
| Other Brasses | CW703R | CuZn23Al3Co | - | More |
| Other Brasses | CW716R | CuZn38Mn1Al | - | More |
| Other Brasses | CW720R | CuZn40Mn1Pb1 | CZ136 | More |
| Other Brasses | CW723R | CuZn40Mn2Fe1 | - | More |
| Other Brasses | CW724R | CuZn21Si3P | - | More |
| Other Brasses | CW725R | CuZn33Pb1AlSiAs | - | More |
| Copper-aluminium (Aluminium Bronze) | CW300G | CuAl5As | - | More |
| Copper-aluminium (Aluminium Bronze) | CW301G | CuAl6Si2Fe | CA107 | More |
| Copper-aluminium (Aluminium Bronze) | CW302G | CuAl7Si2 | - | More |
| Copper-aluminium (Aluminium Bronze) | CW303G | CuAl8Fe3 | CA106 | More |
| Copper-aluminium (Aluminium Bronze) | CW304G | CuAl9Ni3Fe2 | CA105 | More |
| Copper-aluminium (Aluminium Bronze) | CW305G | CuAl10Fe1 | - | More |
| Copper-aluminium (Aluminium Bronze) | CW306G | CuAl10Fe3Mn2 | - | More |
| Copper-aluminium (Aluminium Bronze) | CW307G | CuAl10Ni5Fe4 | CA104 | More |
| Copper-aluminium (Aluminium Bronze) | CW308G | CuAl11Fe6Ni6 | - | More |
| Copper-aluminium (Aluminium Bronze) | CW309G | CuAl5Zn5Sn1 | - | More |
| Copper-aluminium (Aluminium Bronze) | - | - | CA101 | More |
| Copper-aluminium (Aluminium Bronze) | - | - | CA102 | More |
| Copper-aluminium (Aluminium Bronze) | - | - | CA103 | More |
| Copper-nickel | CW350H | CuNi25 | CN105 | More |
| Copper-nickel | CW351H | CuNi9Sn2 | - | More |
| Copper-nickel | CW352H | CuNi10Fe1Mn | CN102 | More |
| Copper-nickel | CW353H | CuNi30Fe2Mn2 | CN108 | More |
| Copper-nickel | CW354H | CuNi30Mn1Fe | CN107 | More |
| Copper-nickel | - | - | CN101 | More |
| Copper-nickel | - | - | CN103 | More |
| Copper-nickel | - | - | CN104 | More |
| Copper-nickel | - | - | CN106 | More |
| Copper-nickel-zinc | CW400J | CuNi7Zn39Pb3Mn2 | - | More |
| Copper-nickel-zinc | CW401J | CuNi10Zn27 | NS103 | More |
| Copper-nickel-zinc | CW402J | CuNi10Zn42Pb2 | NS101 | More |
| Copper-nickel-zinc | CW403J | CuNi12Zn24 | NS104 | More |
| Copper-nickel-zinc | CW404J | CuNi12Zn25Pb1 | NS111 | More |
| Copper-nickel-zinc | CW405J | CuNi12Zn29 | - | More |
| Copper-nickel-zinc | CW406J | CuNi12Zn30Pb1 | - | More |
| Copper-nickel-zinc | CW407J | CuNi12Zn38Mn5Pb2 | - | More |
| Copper-nickel-zinc | CW408J | CuNi18Zn19Pb1 | NS113 | More |
| Copper-nickel-zinc | CW409J | CuNi18Zn20 | NS106 | More |
| Copper-nickel-zinc | CW410J | CuNi18Zn27 | NS107 | More |
| Copper-nickel-zinc | - | - | NS105 | More |
| Copper-nickel-zinc | - | - | NS108 | More |
| Copper-nickel-zinc | - | - | NS109 | More |
| Copper-nickel-zinc | - | - | NS112 | More |
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