CuZn20Al2As ( CW702R )
| Grade : | CuZn20Al2As |
| Number: | CW702R |
| Classification: | Cupper alloy |
| Density | 8.4 g/cm ³ |
| Standard: | EN 1653: 1998 Copper and copper alloys. Plate, sheet and circles for boilers, pressure vessels and hot water storage units EN 12451: 1999 Copper and copper alloys. Seamless, round tubes for heat exchangers EN 12452: 1999 Copper and copper alloys. Rolled, finned, seamless tubes for heat exchangers EN 12449: 1999 Copper and copper alloys. Seamless, round tubes for general purposes EN 1652: 1998 Copper and copper alloys. Plate, sheet, strip and circles for general purposes |
| Equivalent grades: | Go here |
Chemical composition % of grade CuZn20Al2As ( CW702R )
| Fe | Mn | Ni | P | Al | Cu | As | Pb | Others | - |
| max 0.07 | max 0.1 | max 0.1 | max 0.01 | 1.8 - 2.3 | 76 - 79 | 0.02 - 0.06 | max 0.05 | total 0.3 | Zn - remainder |
Mechanical properties of grade CuZn20Al2As ( CW702R )
| Rm - Tensile strength (MPa) (R330) | 330 |
| Rm - Tensile strength (MPa) (R390) | 390 |
| Rp0.2 0.2% proof strength (MPa) (R330) | 90 |
| Rp0.2 0.2% proof strength (MPa) (R390) | 240 |
| A - Min. elongation at fracture (%) (R330) | 30 |
| A - Min. elongation at fracture (%) (R390) | 25 |
| Vickers hardness ( HV): (H070) | 70 - 105 |
| Vickers hardness ( HV): (H100) | 100 |
Properties CuZn20Al2As
| This alloy may be used for sea water application |
Equivalent grades of grade CuZn20Al2As ( CW702R )
Warning! Only for reference
| EU EN |
Germany DIN,WNr |
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| CuZn20Al2As |
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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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CuZn20Al2As ( CW702R ) Cupper alloy |
