Description
Comparison of Brass Alloys: CW617N, CW608N, CW612N
CW617N
Composition: Copper (58%), Zinc (balance), Lead (~2%), Other elements (Al, Fe, Ni, Mn)
Properties:
- High strength and corrosion resistance
- Excellent machinability
- Superior hot forging capability
Applications:
- Water fittings
- Valves
- Sanitary equipment
CW608N
Composition: Copper (59-61%), Zinc (balance), Lead (up to 2.5%), Other elements (Fe, Al)
Properties:
- Good machinability
- High corrosion resistance
- Lower strength compared to CW617N
Applications:
- Machine components
- Valves
- Fittings
CW612N
Composition: Copper (58-60%), Zinc (balance), Lead (up to 1.8%), Other elements (Fe, Al, Sn)
Properties:
- Greater ductility than CW617N
- High corrosion resistance in aggressive environments
- Excellent machinability
Applications:
- Pipe fittings
- Electrotechnical components
Chemical Composition Comparison (%):
| Grade | Cu | Zn | Pb | Fe | Al | Others (Mn, Ni, Sn) |
|---|---|---|---|---|---|---|
| CW617N | 58 | Balance | 1.8-2.5 | 0.3 | 0.05 | Up to 0.3 |
| CW608N | 59-61 | Balance | Up to 2.5 | 0.3 | 0.05 | Up to 0.2 |
| CW612N | 58-60 | Balance | Up to 1.8 | 0.3 | 0.05 | Up to 0.3 |
Mechanical Properties Comparison:
| Grade | Tensile Strength (MPa) | Hardness (HB) | Elongation (%) | Corrosion Resistance |
|---|---|---|---|---|
| CW617N | 400-600 | 80-140 | 15-25 | High |
| CW608N | 350-550 | 75-130 | 20-30 | High |
| CW612N | 370-580 | 78-135 | 18-28 | Very High |
Application Comparison:
| Grade | Primary Applications |
|---|---|
| CW617N | Fittings, valves, sanitary equipment |
| CW608N | Connectors, machine parts |
| CW612N | Electrotechnical components, pipe fittings |
