SUPRATHERME-R - E7018
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Medium and High Tensile Steel

SUPRATHERME-R

AWS: SFA 5.1 E7018 IS: 814 EB 5326H2JX / EB 5426H3JX

Supratherme-R is a basic coated, Hydrogen controlled, Iron powder type high yield electrode. The electrode possesses excellent operating characteristics and is suitable for welding in all positions. Radiographic quality welds having high strength and excellent cracking resistance. Weld metal of excellent toughness to withstand heavy dynamic loading and impact. It is ideally suited for fabrication of component made of steels IS: 8500-91 Gr. 440B & 490B, IS: 2002-92 Gr. 1 & 2, IS: 1875-92 Class 2, 2A & 3, IS 2062-99 Gr. C or similar. Also suitable for repair welding of cast steels to IS: 1030 Gr. 230-450W. Supratherme-R also used for joining of stainless Steels type 3Cr12, IRS M- 44 or it's equivalent with Mild Steel / Low Alloyed Steel / Carbon Steel.

Precaution

1. Re-dry the electrodes at 250-300°C for one hour.

2. Use short arc length.

Approvals
    IRS
    B2 & A4
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL (%)
Element
CMnSiSPCrNiMoV
Percent
0.06 
1.02 
0.44 
0.022 
0.022  
0.028
0.036 
0.003
 0.004


TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL


UTSYSElongation
% RA
CVN Impact Strength (J)
CVN Impact Strength (J)
(MPa)
(MPa)
(L= 5d)%

at Minus 30°C
at Minus 20°C
54045028.0
657065

• TRANSVERSE ROOT AND TRANSVERSE FACE BEND: SATISFACTORY (with 3T Mandrel Diameter at 180°).

• DIFFUSIBLE HYDROGEN CONTENT: 5 ml/100 gms of weld metal Max By Mercury method.

• MOISTURE CONTENT: 0.15 % Max. As received or conditioned (As per code 0.6% Max.)

• DEPOSITION EFFICIENCY: 115 %

• ACCELERATED STORAGE STABILITY TEST: After this test we have not found any peeling off flux coating, cracking of flux coating, loss of texture of flux and rusting of core wire inside flux coating.

• COATING FACTOR: Heavy (1.51-2.20)

CURRENT & PACKING DATA: AC / DC (+)


Size (mm)
6.3x4505x4504x450
3.15x450
2.5x350
Current Range (Amps)
260-320200-250150-190
100-150
70-100
Qty. (Pcs./Carton)
253555
75125


Medium and High Tensile Steel
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