MAXFIL-ST-21 - ERCCoCr-E
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Mild Steel Wire

MAXFIL-ST-21

AWS: SFA 5.21 ERCCoCr-E

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.

CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiCrNiMoOthers
Typical0.20-0.251.01.025-301.5-4.04.5-7.0W, Fe, Co
TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL


Property
2 Layer Hardness

(HRC)
As Weld22-25
Work Hardened30-33
WELDING PARAMETER: DC (+)


DiameterHorizontalHorizontalFlat 
Flat 
 (mm)
Volt, VCurrent, AVolt, V
Current, A
1.2025-27
180-20025-27
180-200
1.6026-28
280-30026-28
280-300
2.4028-3028-3028-30330-350
Welding Positions

H,F

Shielding Gas

Argon - Carbon Dioxide CO2 (80:20%) at flow rate 12-15 litres per minute.

PACKING

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.

Mild Steel Wire
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