MACHINABLE HARDFACING WELDING ELECTRODES SPECIALLY FORMULATED FOR STEEL MILL ROLLS TO COMBAT COMBINATION OF HOT WEAR, IMPACT, METAL TO METAL ABRASION AND THERMAL FATIGUE.

APPLICATION:

For re-building and hardfacing of steel mill rolls made of all kinds of carbon steel, alloy steel and * cast iron such as rolls for the following:

Structural Steel, Rails, Square Bars, Round Bars, Wire Rods

Impact Resistance : Good

Heat Resistance : Very Good (up to 550ºC)

Machinability: Yes with Tungsten Carbide

Flame Cut: Yes

Metal to Metal Abrasion: Very Good

Thermal Fatigue Resistance: Excellent (Fire Cracking-Hot and Cold Fatigue)

Magnetic Deposit: Yes

Layers of weld deposit: Multiple

WELDING TIPS:

1.       It is a must to PRE-HEAT and control INTERPASS TEMPERATURES for a successful welding. If possible, use temp. stick indicator.  In general, pre-heat to 370-430ºC.  Control interpass temp. from 300-350ºC.

2        After  welding, allow SLOW COOLING of not more than 40ºC per hour.

*3.    If the rolls are made of DUCTILE or GRAY CAST IRON,

         use BUFFERWELD NO. 3 electrodes for buffering before

         overlaying with THERMAROLL-M.

TYPICAL ANALYSIS OF ALL WELD DEPOSIT:

HARDNESS:

AS WELDED: 37-41 HRC (360-400 Hv)

RECCOMENDED CURRENTS: Ampere (AC/DC+)

WELDING POSITIONS:

FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD

EXPORT Packing: 5Kg plastic container, then 4 5kg containers in master carton box

LOCAL Packing:  5Kg paper box in shrink wrapped plastic

Other special packaging can be accommodated as per request.