Getig 90SD2, ER 90SD2
AWS/SFA 5.28: ER 90S-D2
Copper coated solid wires alloyed with manganese & molybdenum for improved properties. Deposited weld metal has excellent creep resistance properties up to 500°C.
CHEMICAL ANALYSIS (RANGE) %
MECHANICAL PROPERTIES (RANGE) (PWHT 620 ±15OC/2 HRS.)
• In general usable on the following grades of creep resistant steels.
• DIN 15 Mo3, GS-22Mo4, 19Mn6, ASTM A3 36 Gr F1, ASTM A 335Gr P1, ASTM A185 Gr F1 etc.
• For welding AISI 4130 steel / forgings.
SHIELDING GAS : 99.99 % Argon, 7-12 l/min, and back purge PREHEAT AND INTERPASS TEMPERATURE : 135 - 165°C WELDING CURRENT : DC (-)
The PWHT requirements will depend on a number of factors including, base material, property requirements, and need to conform to NACE etc. Temperatures will normally be about 620°C.