CuNi18Zn20 ( CW409J )
| Grade : | CuNi18Zn20 |
| Number: | CW409J |
| Classification: | Cupper alloy |
| Density | 8.7 g/cm ³ |
| Standard: | EN 1652: 1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes EN 12163: 1998 Copper and copper alloys. Rod for general purposes EN 12166: 1998 Copper and copper alloys. Wire for general purposes EN 12167: 1998 Copper and copper alloys. Profiles and rectangular bar for general purposes EN 12449: 1999 Copper and copper alloys. Seamless, round tubes for general purposes EN 1654: 1998 Copper and copper alloys. Strip for springs and connectors |
| Equivalent grades: | Go here |
Chemical composition % of grade CuNi18Zn20 ( CW409J )
| Fe | Mn | Ni | Cu | Pb | Sn | Others | - |
| max 0.3 | max 0.5 | 17 - 19 | 60 - 63 | max 0.03 | max 0.03 | total 0.2 | Zn - remainder |
Mechanical properties of grade CuNi18Zn20 ( CW409J )
| Rm - Tensile strength (MPa) (R380) | 380-450 |
| Rm - Tensile strength (MPa) (R450) | 450-520 |
| Rp0.2 0.2% proof strength (MPa) (R380) | 250 |
| Rp0.2 0.2% proof strength (MPa) (R450) | 250 |
| A - Min. elongation at fracture (%) (R380) | 37 |
| A - Min. elongation at fracture (%) (R450) | 18 |
| A - Min. elongation Lo = 50mm (%) (R380) | 27 |
| A - Min. elongation Lo = 50mm (%) (R450) | 9 |
| Vickers hardness ( HV): (H085) | 85 - 115 |
| Vickers hardness ( HV): (H115) | 115 - 160 |
Properties CuNi18Zn20
| Modulus of elasticity = 135 kN/mm ² Electrical conductivity = 3 MS/m; |
Equivalent grades of grade CuNi18Zn20 ( CW409J )
Warning! Only for reference
| EU EN |
Germany DIN,WNr |
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| CuNi18Zn20 |
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Casting process
| GS | Sand casting |
| GM | Permanent mould casting |
| GZ | Centrifugal casting |
| GC | Continuous casting |
| GP | Pressure die casting |
Material conditions
| R | Material condition designated by the minimum value of tensile strength requirement for the product with mandatory tensile strength and elongation requirements |
| H | Material condition designated by the minimum value of hardness requirement for the product with mandatory hardness requirements |
Mechanical properties
| ReH | Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d elasticite minimale |
| Rm | Tensile strength / Zugfestigkeit / Resistance a la traction |
| A | Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal |
| J | Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc |
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CuNi18Zn20 ( CW409J ) Cupper alloy |
