CuSn
Application
CuSn is used for welding a wide range of copper-based alloys, both with each other and with C-Mn steels or cast iron. It is also ideal for repair and joining of castings.
When a low dilution is obtained, the material is suitable for overlays aimed at providing support surfaces and/or corrosion-resistant coatings on steel components, such as shafts and other mechanical parts. However, it is not suitable for stainless steels because the chromium released during the process can cause embrittlement. Tin bronze welding metal tends to stasis due to its wide melting range. Preheating to approximately 200 °C can improve fluidity in welding thick sections. To prevent hot cracking, it is advisable to keep the interpass temperature below 200 °C.
Alloy Type
Tin bronze alloy wire for welding similar tin bronze (phosphor bronze) alloys.
Microstructure
A multi phase copper base structure with complex eutectoids.
Materials
Tin bronze up to 10%Sn+0.5%P. Cu + 20-25%Sn. Cu + 40%Zn, manganese bronze.
Products of the line CuSn
| Product name | Process | AWS specifications | EN ISO specifications | |
| DAIKOWM CuSn6 | GMAW |
AWS A5.7
ERCuSn-A |
- | |
| DAIKOWM CuSn8 | GMAW |
AWS A5.7
ERCuSn-C |
- | |
| DAIKOWT CuSn6 | GTAW |
AWS A5.7
ERCuSn-A |
- | |
| DAIKOWT CuSn8 | GTAW |
AWS A5.7
ERCuSn-C |
- | |
| G-TECH CuSn7 | SMAW |
AWS A5.6
ECuSn-C |
- | |
| DAIKOWM CuSn12 | GMAW | - |
EN ISO 24373
S CuSn12P (Cu 5410) |
|
| DAIKOWT CuSn9 | GTAW | - |
EN ISO 24373
S CuSn10MnSi (Cu 5211) |
|
| DAIKOWM CuSn9 | GMAW | - |
EN ISO 24373
S CuSn10MnSi (Cu 5211) |
|
| DAIKOWT CuSn12 | GTAW | - |
EN ISO 24373
S CuSn12P (Cu 5410) |
