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HARD FACING ELECTRODES

MICRO-HF II

DESCRIPTION
A Hard Facing Electrode for Mild Steel, Carbon Steel and Low Alloy Steels, where 350 Brinell Hardness is required. Weld Metal is Machineable with Carbide Tools. The Weld deposit is highly resistant to abrasive wear and has a Fair Degree of Toughness. Excellent ARC stability and Beads are Smooth, Uniform and of good Appearance. Typical applications are for surfacing of Cams, Pulleys, Gears, Wheels, Punching Dies & Steel Casting etc.
WELD METAL CHEMISTRY (%) WELD METAL
MECHANICAL PROP.
WELDING PARAMETRES
  Current Conditions : AC or DC +/-
C : 0.2-0.4 Hardness : (on 2 layer deposit) 350-450 BHN Size (mm) Amps
Mn : 0.4-0.9   3.15 100-130
Si : 0.8 Max   4.00 140-180
Cr : 2.5-3.0   5.00 190-230

MICRO-HF III LH

DESCRIPTION
A heavy Coated Air Hardening Type Electrode specially Designed for Hard Facing and build up on worn out machine parts which are subjected to extremely severe service conditions involving a Combination of impact and abrasion. The weld deposit is extremely hard sound and Non Machinable. Suitable for surfacing on Bamboo Chipper knives Cane Cutting Knives, Punches, Dies, Driling Bits, Sheras and Surfacing of Mill hammers for Pulverising Coat etc.
WELD METAL CHEMISTRY (%) WELD METAL
MECHANICAL PROP.
WELDING PARAMETRES
  Current Conditions : AC or DC +/-
C : 0.5-0.8 Hardness : (on 2 layer deposit) 550-650 BHN Size (mm) Amps
Mn : 0.5-1.5   3.15 100-130
Si : 0.75 Max   4.00 140-180
Cr : 6.0-7.5   5.00 190-230
Mo : 0.4-0.8      
V : 0.60 Max      

MICRO-HF V

DESCRIPTION
A basic type Graphitic Coated Electrode for Hardfacing and build up of Worn Out Machine parts and Components. Weld Beads are Flat and Smooth. Slag is easily Detachable. The weld metal is Alloyed Cast Iron which is hard and extremely resistant to abrasion and Metal to Metal Wear. Suitable for the Surfacing on Dredger Bucket lips, Oil Expeller worms, Concrete Mixure Blades, Scraper Blades, Screw Conveyors, Cement Die Rings etc.
WELD METAL CHEMISTRY (%) WELD METAL
MECHANICAL PROP.
WELDING PARAMETRES
  Current Conditions : AC or DC +/-
C : 2.0-3.0 Hardness : (on 2 layer deposit) 550-650 BHN Size (mm) Amps
Mn : 1.0-1.5   3.15 100-130
Si : 0.75 Max   4.00 140-180
Cr : 6.0 Max   5.00 190-230
Mo : 0.4-0.8      
V : 0.60 Max      
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