MAXFIL-ST-6
SFA 5.21 ERCCoCr-A
Cobalt & nickel base surfacing flux-cored wire (SFA 5.21 ERCCoCr-A) from D&H Secheron — for satellite-grade 6 hardfacing on automotive valves, shear blades, extruder screws.
Cobalt & Nickel Base Surfacing Flux Cored Wire
Maxfil-ST-6 is a FCAW wire designed for depositing satellite grade 6 weld metal. It contains 13% eutectic chromium carbides distributed in a cobalt-chromium- tungsten solid solution matrix. Overall resistance to low stress abrasive wear and toughness to resist some degree of impact. Excellent resistance to corrosion, oxidation and elevated temperature retention of hot hardness up to a maximum of 650oC.
Maxfil-ST-6 is suitable for automotive and fluid flow values, chain saw guides, hot punches, shear blades and extruder screws.
Chemical Composition
| Element | Range |
|---|---|
| C | 1.0-1.2 |
| Mn | 1.0 |
| Si | 1.0 |
| Cr | 25-32 |
| Ni | 3 |
| Mo | 3.0-4.5 |
| Others | Mo, Co |
Shielding Gas
Argon - Carbon Dioxide CO2 (80:20%) at flow rate 12-15 litres per minute.
