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ER309L
Application: Used for welding the stainless steel and carbon steel with similar welding components,and the stainless steel dissimilar materials,surfacing the transition meta for petrochemical engineering e.g.inner wall of reaction vessels,or applied to the welding of martensitic,ferritic stainless steels with a low toughness.
Characteristics: This welding wire is 24%Cr-13%Ni series stainless steel welding wire with a good high-temperature resistance,low carbon content,excellent corrosion resistance, stable electric arc and beautiful formation of wed due to the high alloy content,available for the all-positioning welding.
Chemical Composition Of Welding Wire:(Mass Fraction)
| Item | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| Guarantee Value | ≤0.030 | 1.00-2.50 | ≤0.65 | 23.00-25.00 | 12.00-14.00 | ≤0.75 | ≤0.030 | ≤0.030 | ≤0.75 |
| Typical Value | 0.020 | 1.85 | 0.36 | 23.85 | 12.85 | 0.039 | 0.015 | 0.008 | 0.18 |
Mechanical Property of Deposited Metal
| Item | Tensile Strength Rm/MPa | Elongation A% |
| Guarantee Value | ≥510 | ≥25 |
| Typical Value | 582 | 42 |
Note On Usage:
1.MIG welding shield gas flow should be between 18-25L/min;The shield gas should apply Ar+2%O₂;If the wind speed is greater than 0.5m/s,it is required to take the wind-proof measures.
2.TIG welding shield gas flow requirement:If the welding current is between(15-200)A, the gas flow should be(5-14)L/min;If the welding current is between(200-320)A,the gas flow should be(14-24)L/min.The shield gas shoud apply pure Ar,and please take the wind-proof measures is the wind speed is greater than 1.0m/s;It is required to remove the impurities e.g. rust,oil contaminant,water etc.on welding workpiece prior to MIG/TIG welding;The above- mentioned welding parameters should be for reference only,users shoud develop the welding standards appropriate for the production according to their own specific conditions.
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