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Cobalt & Nickel Base Surfacing Flux Cored Wire
Maxfil-ST-21 is a FCAW wire designed for resistant to thermal shock and oxidizing and reducing atmospheres. Very good strength and ductility in temperatures up to 1150°C. Deposits possess excellent self mated galling resistance and also very resistant to cavitation erosion.
Maxfil-ST-21 is suitable for guide rolls, hot extrusion and forging dies, hot shear blades, tong bits, value trim etc.
Element | C | Mn | Si | Cr | Ni | Mo | Others |
Typical | 0.20-0.25 | 1.0 | 1.0 | 25-30 | 1.5-4.0 | 4.5-7.0 | W, Fe, Co |
Property | 2 Layer Hardness |
(HRC) | |
As Weld | 22-25 |
Work Hardened | 30-33 |
Diameter | Horizontal | Horizontal | Flat | Flat |
(mm) | Volt, V | Current, A | Volt, V | Current, A |
1.20 | 25-27 | 180-200 | 25-27 | 180-200 |
1.60 | 26-28 | 280-300 | 26-28 | 280-300 |
2.40 | 28-30 | 28-30 | 28-30 | 330-350 |
H,F
Argon - Carbon Dioxide CO2 (80:20%) at flow rate 12-15 litres per minute.
Standard size: 1.20 & 1.60 mm. Other diameters may be available on request.
Quantity: Supplied approximately 15 Kgs in a plastic spool. Each spool is sealed in an air tight polythene bag and then packed in a corrugated box.