Chemical composition of hollow copper and copper alloy bars (round, square, hexagonal, octagonal) for easy machining, EN 12168
Composition of low-alloyed copper alloys
| Material | Chemical composition, % | Density a, g/ cm3 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Symbol | Number | Element | Cu | P | Pb | S | Te | Others total | approx. |
| min. | Rem. | 0.003 | — | 0.2 | — | — | |||
| CuSP | CW114C | max. | — | 0.012 | — | 0.7 | — | 0.1 | 8.9 |
| min. | Rem. | 0.003 | — | — | 0.4 | — | |||
| CuTeP | CW118C | max. | — | 0.012 | — | — | 0.7 | 0.1 | 8.9 |
| a For information only. | |||||||||
Composition of copper-zinc alloys
| Material | Chemical compositionb, % | Densitya g/cm3 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Symbol | Number | Element | Cu | As | Al | Fe | Mn | Ni | Pb | Sn | Zn | Others total | approx. |
| CuZn40 | CW509L | min. | 59 | - | - | - | - | - | - | - | Rest | - | 8.4 |
| max. | 61.5 | - | 0.05 | 0.2 | - | 0.3 | 0.2 | 0.2 | - | 0.2 | |||
| CuZn42 | CW510L | min. | 57 | - | - | - | - | - | - | - | Rest | - | 8.4 |
| max. | 59 | - | 0.05 | 0.3 | - | 0.3 | 0.2 | 0.3 | - | 0.2 | |||
| CuZn38As | CW511L | min. | 61.5 | 0.02 | - | - | - | - | - | - | Rest | - | 8.4 |
| max. | 63.5 | 0.15 | 0.05 | 0.1 | - | 0.3 | 0.2 | 0.1 | - | 0.2 | |||
a For information only b For drinking water applications, restrictions on the chemical composition of some materials listed in this table may apply according to national regulations/laws, for example as specified in the 4 MS Common Composition List | |||||||||||||
Composition of copper-zinc-lead alloys
| Material | Chemical composition, % | Densitya g/cm3 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Symbol | Number | Element | Cu | Al | As | Fe | Mn | Ni | Pb | Sn | Zn | Others total | approx. |
| Group A alloys – These alloys have excellent machinability but very limited cold formability. | |||||||||||||
| CuZn36Pb3 | CW603N | min. | 60 | - | - | - | - | - | 2.5 | - | Rest | - | 8.5 |
| max. | 62 | 0.05 | - | 0.3 | - | 0.3 | 3.5 | 0.2 | - | 0.2 | |||
| CuZn39Pb3 | CW614N | min. | 57 | - | - | - | - | - | 2.5 | - | Rest | - | 8.4 |
| max. | 59 | 0.05 | - | 0.3 | - | 0.3 | 3.5 | 0.3 | - | 0.2 | |||
| CuZn40Pb2 | CW617N | min. | 57 | - | - | - | - | - | 1.6 | - | Rest | - | 8.4 |
| max. | 59 | 0.05 | - | 0.3 | - | 0.3 | 2.5 | 0.3 | - | 0.2 | |||
| Group B alloys – These alloys have good machinability and good cold formability | |||||||||||||
| CuZn37Pb2 | CW606N | min. | 61 | - | - | - | - | - | 1.6 | - | Rest | - | 8.4 |
| max. | 62 | 0.05 | - | 0.2 | - | 0.3 | 2.5 | 0.2 | - | 0.2 | |||
| CuZn38Pb2 | CW608N | min. | 60 | - | - | - | - | - | 1.6 | - | Rest | - | 8.4 |
| max. | 61 | 0.05 | - | 0.2 | - | 0.3 | 2.5 | 0.2 | - | 0.2 | |||
| CuZn39Pb2 | CW612N | min. | 59 | - | - | - | - | - | 1.6 | - | Rest | - | 8.4 |
| max. | 60 | 0.05 | - | 0.3 | - | 0.3 | 2.5 | 0.3 | - | 0.2 | |||
| Group C alloys – These alloys have good machinability and good to very good cold formability | |||||||||||||
| CuZn35Pb2 | CW601N | min. | 62 | - | - | - | - | - | 1.6 | - | Rest | - | 8.5 |
| max. | 63.5 | 0.05 | - | 0.1 | - | 0.3 | 2.5 | 0.1 | - | 0.1 | |||
| CuZn38Pb1 | CW607N | min. | 60 | - | - | - | - | - | 0.8 | - | Rest | - | 8.4 |
| max. | 61 | 0.05 | - | 0.2 | - | 0.3 | 1.6 | 0.2 | - | 0.2 | |||
| CuZn39Pb1 | CW611N | min. | 59 | - | - . | - | - | - | 0.8 | - | Rest | - | 8.4 |
| max. | 60 | 0.05 | - | 0.3 | - | 0.3 | 1.6 | 0.3 | - | 0.2 | |||
| Group D alloys – These alloys are dezincification-resistant, with good machinability and good cold formability | |||||||||||||
| CuZn36Pb2As | CW602N | min. | 61 | - | 0.02 | - | - | - | 1.7 | - | Rest | - | 8.4 |
| max. | 63 | 0.05 | 0.15 | 0.1 | 0.1 | 0.3 | 2.8 | 0.1 | - | 0.2 | |||
| a For information only. b For drinking water applications, restrictions on the chemical composition of some materials listed in this table may apply according to national regulations/laws, for example as specified in the 4 MS Common Composition List | |||||||||||||
Composition of complex copper-zinc alloys
| Material | Chemical composition, % | Densitya, g/ cm3 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Symbol | Number | Element | Cu | Al | As | Fe | Mn | Ni | P | Pb | Si | Sn | Zn | Others total | approx. |
| CuZn32Pb2AsFeSi | CW709R | min. | 64 | - | 0.03 | 0.1 | - | - | - | 1.5 | 0.45 | - | Rest | - | 8.4 |
| max. | 66.5 | 0.05 | 0.08 | 0.2 | - | 0.3 | - | 2.2 | 0.8 | 0.3 | - | 0.2 | |||
| CuZn37Mn3Al2PbSi | CW713R | min. | 57 | 1.3 | - | - | 1.5 | - | - | 0.2 | 0.3 | - | Rest | - | |
| max. | 59 | 2.3 | - | 1 | 3 | 1 | - | 0.8 | 1.3 | 0.4 | - | 0.3 | 8.1 | ||
| CuZn40Mn1Pb1 | CW720R | min. | 57 | - | - | - | 0.5 | - | - | 1 | - | - | Rest | - | |
| max. | 59 | 0.2 | - | 0.3 | 1.5 | 0.6 | - | 2 | 0.1 | 0.3 | - | 0.3 | 8.3 | ||
| CuZn40Mn1PblAIFeSn | CW721R | min. | 57 | 0.3 | - | 0.2 | 0.8 | - | - | 0.8 | - | 0.2 | Rest | - | |
| max. | 59 | 1.3 | - | 1.2 | 1.8 | 0.3 | - | 1.6 | - | 1 | - | 0.3 | 8.3 | ||
| CuZn40Mn1Pb1FeSn | CW722R | min. | 56.5 | - | - | 0.2 | 0.8 | - | - | 0.8 | - | 0.2 | Rest | - | |
| max. | 58.5 | 0.1 | - | 1.2 | 1.8 | 0.3 | - | 1.6 | - | 1 | - | 0.3 | 8.3 | ||
| CuZn21Si3P | CW724R | min. | 75 | - | - | - | - | - | 0.02 | - | 2.7 | - | Rest | - | |
| max. | 77 | 0.05 | - | 0.3 | 0.05 | 0.2 | 0.1 | 0.1 | 3.5 | 0.3 | - | 0.2 | 8.3 | ||
| a For information only. | |||||||||||||||