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Medium and High Tensile Steel

ULTRATHERME-H4R

AWS: SFA 5.5 E11018-G H4R

Ultratherme-H4R is moisture resistant hydrogen controlled basic coated electrode. It is ideally suited for welding high strength low alloy steels, fine-grained steels, Q&T steels, etc. The weld metal possesses high strength combined with good toughness properties. Ideal for welding high strength steels used in earth moving industry, etc.

Precaution

1. Restrict the heat input, use short arc and stringer bead.

2. Re-dry the electrodes at 250 C for 1 hour, if expose to atmosphere.

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)


Element
CMnSiMoNiCrSP
Percent
0.061.400.250.502.200.200.0180.018


TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL


UTSYSElongation
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 4d)%
at Minus 40°C
79070019
35


DIFFUSIBLE HYDROGEN CONTENT : 4 ml / 100 gms of weld metal Max

MOISTURE AS CONDITIONED : 0.15 Max

O MOISTURE AS EXPOSED (80% RH, 27 C FOR 9 HRS) : 0.40 Max

ADVANTAGE : Electrodes are Vacuum packed, no need of drying and can be used straight on

the job.

CURRENT & PACKING DATA: AC / DC (+)


Size (mm)
5x4504x450
3.15x450
2.5x350
Current Range (Amps)
200-260140-190
100-150
70-100
Qty. (Pcs./Carton)
2222