CuSn3Zn9 ( CW454K )
| Grade : | CuSn3Zn9 |
| Number: | CW454K |
| Classification: | Cupper alloy |
| Density | 8.8 g/cm ³ |
| Standard: | EN 1652: 1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes EN 1654: 1998 Copper and copper alloys. Strip for springs and connectors EN 13148: 2001 Copper and copper alloys. Hot-dip tinned strip |
| Equivalent grades: | No information |
Chemical composition % of grade CuSn3Zn9 ( CW454K )
| Fe | Ni | P | Pb | Zn | Sn | Others | - |
| max 0.1 | max 0.2 | max 0.2 | max 0.1 | 7.5 - 10 | 1.5 - 3.5 | total 0.2 | Cu - remainder |
Mechanical properties of grade CuSn3Zn9 ( CW454K )
| Rm - Tensile strength (MPa) (R320) | 320-380 |
| Rm - Tensile strength (MPa) (R380) | 380-430 |
| Rm - Tensile strength (MPa) (R430) | 430-520 |
| Rp0.2 0.2% proof strength (MPa) (R320) | 230 |
| Rp0.2 0.2% proof strength (MPa) (R380) | 200 |
| Rp0.2 0.2% proof strength (MPa) (R430) | 330 |
| A - Min. elongation at fracture (%) (R320) | 30 |
| A - Min. elongation at fracture (%) (R380) | 22 |
| A - Min. elongation at fracture (%) (R430) | 8 |
| A - Min. elongation Lo = 50mm (%) (R320) | 25 |
| A - Min. elongation Lo = 50mm (%) (R380) | 16 |
| A - Min. elongation Lo = 50mm (%) (R430) | 6 |
| Vickers hardness ( HV): (H) | 80 - 110 |
| Vickers hardness ( HV): (H110) | 110 - 140 |
| Vickers hardness ( HV): (H140) | 140 - 170 |
Properties CuSn3Zn9
| Modulus of elasticity = 120 kN/mm ² Electrical conductivity = 12 MS/m; |
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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CuSn3Zn9 ( CW454K ) Cupper alloy |
