SUPRAMAX – 9018 G

Classification  :  AWS: E 9018 G

Characteristics : A medium heavy coated, hydrogen controlled, Iron powder type electrode for welding 71 kgf/mm² class high tensile low alloy steel depositing X-ray quality & crack resistant welds. The weld deposit has excellent creep resistability and high notch toughness at low temp, down to -50°C

Applications : This finds extensive use in pressure vessels,piping penstock, earth moving equipment, machinery parts. Welding grain refine the Q and T Steel.

Weld Metal Properties (%) :

C       =    0.08 Max        Mn = 1.2-1.7

Si        =   0.2-0.45          S = 0.03 Max

P        =   0.03 Max         Cr=   1.0-1.6

Mo     =    0.25-0.4

All Weld Mechanical  Properties :

UTS           =    640N/mm²Min.

YS               =    550N/mm²Min.

Elong (L=4d) % = 17Min

CVN Impact Value (J) at – 50°C: 30 Min                          

Precautions :   Ensure the electrode is dry. In case of moisture pick-up, re-dry the electrodes at 300°C for one hour.