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 1150oC. 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 & 1.60mm. Other diameters may be available on request.

Quantity : Supplied approximately 15Kgs 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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