Medium and High Tensile Steel

ULTRATHERME-M

AWS: SFA 5.5 E 11018 M EN ISO CODE: 18275-B E7618-N4M2 A H5

Basic coated hydrogen control electrode with a stable and smooth arc that is easy to strike and restrike.
Low spatter and good bead finish.
Welds are of radiographic quality.
The weld metal displays good crack resistance and produces sound weld metal possessing excellent strength combined with good impact properties at subzero temperature.

It is ideally suited for welding high strength Q & T steels like WEL-TEN 80, SA 517 grades and their equivalents. The electrodes are ideally suited for welding restrained joints in high strength steels.

Precaution

1. Redry the electrodes at 300 C for one hour.

2. During welding the heat input should be kept to a minimum. Preheat and interpass temperature shall never be more than 120-150 C.

3. Use stringent beads and minimize weaving.

Approvals

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)

Element	C	Mn	Si	Mo	Ni	Cr	S	P
Percent	0.060	1.50	0.40	0.40	2.00	0.20	0.020	0.020

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL

UTS	YS	Elongation	CVN Impact Strength (J)
(MPa)	(MPa)	(L= 5d)%	at Minus 50°C
790	705	22.0	30

CURRENT & PACKING DATA: AC / DC (+)

Size (mm)	5x450	4x450	3.15x450	2.5x350
Current Range (Amps)	180-240	140-180	90-140	50-90
Qty. (Pcs./Carton)	35	55	75	125