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Medium and High Tensile Steel

TENSAL-H4R

AWS: SFA 5.5 E9018-G H4R

Tensal-H4R is basic coated, extra low hydrogen, moisture resistance type electrode for welding high strength steels. It is suited for welding steels having tensile strength up to 690 MPa. The weld metal possesses excellent toughness at sub-zero temperatures down to minus 50 C. Typical applications include welding of grain- refined steels, Q&T steels, HSLA steels, pressure vessels, structural fabrication, bridges, penstocks, tanks, etc.

Precaution

1. 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
CMnSiNiMoSP
Percent
0.061.200.400.800.500.0200.021



TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL


UTSYSElongation
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 4d)%
at Minus 50°C (Joules)
65058022.0
40                                                           

MOISTURE

• As Conditioned : 0.15% Max.

• As Exposed : 0.40% Max. (27 C and 80% Relative Humidity for 9 Hours)

DIFFUSIBLE HYDROGEN CONTENT: 4 ml/100 gms of weld metal 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)
5x4504x350
3.15x450
2.5x350
Current Range (Amps)
200-250140-190
100-140
70-100
Qty. (Pcs./Carton)
20304590