Fe SGCrMo1 1.25% Cr, 0.5% Mo, low alloy Rods for GMAW of Cr/Mo steel
Fe SGCrMo1 low alloy Rods designed for GMA welding on 1.25 Cr / 0.5 Mo creep resistant steels, which are used for high temperature service.Suitable for root pass on pipe welding, without backing gas.
Preheating and interpass temperatures of no less than 135° C must be used during welding, to avoid cracks.
Applications: Vessels, Boilers fabrication, Chemical and Petrochemical industry, Piping fabrication.
Shielding Gas: 100% Ar
Available in 2.4 mm. diam and 1000 mm. cut length rods embossed on each end for ease of alloy identification even after the rod is partially consumed and in 5 kgs pacs.
Typical Wire Analysis %:
C 0.07-0.12, Mn 0.40-0.70, Si 0.40-0.70, S 0.025, P 0.025, Cr 1.20-1.50, Mo 0.40-0.65, Ni 0.20, Cu 0.35
Typical Mechanical Properties:
Tensile strength: SR >590 MPa
Yield strength: SR >490 MPa
Elongation E 5d%: SR >19
Charpy V-Notch Impact Properties:
Testing Temp. -20° C SR >47 J
(SR= Post Weld Heat Treatment at 620° C x 1h)
The above data may change without prior notice.
AWS A5.28 ER 80S-B2 - UNS K20900
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