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ER307
Application: Used for the welding of non-magnetic,high manganese steels,hardening corrosion resistant steels.It is usually used for the special non-magnetic circumstances e.g. nuclear submarines,armor plates etc.,and the welding of dissimilar steels with difficult welding and easy cracking.
Characteristics: This welding wire is 21%Cr-9%Ni-4%Mn pure austenitic stainless steel welding wire with a stable welding arc and beautiful formation of weld,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 | 0.04-0.14 | 3.30-4.80 | ≤0.65 | 19.50-22.00 | 8.00-10.70 | 0.50-1.50 | ≤0.030 | ≤0.030 | ≤0.75 |
| Typical Value | 0.08 | 4.2 | 0.43 | 20.01 | 9.32 | 0.90 | 0.012 | 0.011 | 0.18 |
Mechanical Property of Deposited Metal
| Item | Tensile Strength Rm/MPa | Elongation A% |
| Guarantee Value | ≥590 | ≥25 |
| Typical Value | 626 | 31 |
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)Lmin.The shield gas should 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 shoud be for reference only,users should develop the welding standards appropriate for the production according to their own specific conditions.
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