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GM 120SG

IDENTIFICATION
GM 120SG, ER120SG

CLASSIFICATION
AWS A5.28/ASME SFA5.28: ER 120S-G

DESCRIPTION

  • Solid wire for gas-shielded metal arc welding of high strength fine grain steel.
  • The wire is alloyed with alloying elements like Nickel, Chromium and molybdenum and deposits high tensile weld metal having UTS of more than 860 MPa.

CHEMICAL ANALYSIS (RANGE) %

C Si Mn Ni P S Mo Cr Cu
0.07 max 0.45 max 1.60 max 1.60 max 0.012 max 0.010 max 0.30 max 0.15 max 0.25 max

MECHANICAL PROPERTIES (RANGE)

UTS (MPa) PS (MPa) EL (%) CVN Impact Value
      Temp Joules
860 min 760 min 19 min -40°C 75

TYPICAL APPLICATIONS

For welding fine grain steel such as HY80, HY100, N-A-XTRA 65-70, USS-T1, XABO-90, ST E885 etc.

SPECIAL INSTRUCTIONS

  • Use 80% Ar + 20% CO2 gas for shielding
  • Flow quantity of shielding gas should be 25 liters/minute, approximately.
  • Use wind screen against wind.

WELDING CURRENT : DC (+)

SHIELDING GAS : 80% Ar + 20% CO2 OR Ar + 5 – 20% CO2

RECOMMENDED CURRENT (AMPS)

Size (mm) F & HF
1.2 200~350
1.6 300~550

PACKING PARAMETERS

Size (mm) Weight / Spool (kg)
1.2 15
1.6 15