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JL-G309LMo
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ISO 14343-B-SS309LMo
AWS A5.9 ER309LMo

Application

Used for welding dissimilar materials of carbon steel and stainless steel or for welding martensitic and ferritic stainless steels with poor toughness, and can also be used for welding cast iron.

Characteristics

The Welding Wire is a 24%Cr-13%Ni-1%Mo Stainless Steel Welding Wire. Due to the high content of the alloy, it has good high-temperature resistance. Due to the addition of Mo, it has excellent crack resistance and corrosion resistance at high temperatures, stable welding arc and beautiful shape. It can be welded in all positions.

Chemical composition of welding wire: (Mass fraction)%

ItemCMnSiCrNiMoPSCu
Standard≤0.0301.00-2.500.35-0.6023.00-25.0012.00-14.002.00-3.00≤0.030≤0.030≤0.75

Mechanical Properties of Deposited Metal

ItemTensile StrengthRm/MPaElongation A/%
Standard≥520≥30
Test Result59041

Note

For MIG welding, the shielding gas flow rate should be maintained at 18-25 L/min using Ar+2%O2 mixture. Wind shields must be employed when wind speed exceeds 0.5 m/s.

For TIG welding:

Gas flow rate should be 5-14 L/min at welding currents between 15-200 A Gas flow rate should be 14-24 L/min at welding currents between 200-320 A

Pure argon must be used as shielding gas. Wind shields are required when wind speed exceeds 1.0 m/s.

Pre-welding requirement: Both MIG and TIG welding processes require thorough removal of rust, oil, moisture and other contaminants from workpieces.

Note: The above parameters serve as reference only. Users shall establish suitable welding procedures based on specific production conditions.

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