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ER307Si
Application : Used for the welding of non-magnetic,high manganese steel and hardening corrosion-resisting steel,mostly used for the special nonmagnetic circumstances e.g.nuclear submarine,armor plate etc.,as wellas the welding of dissimilar steels with difficult welding and easy cracking.
Characteristics: This welding wire is 21%Cr-9%Ni-6%Mn austenitic stainless steel welding wire with a high Mn content,low cracking susceptibility,stable welding art and beautiful formation of weld.It has a good fluidity due to adding Si moten iron.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 | 6.50-8.00 | 0.65-1.00 | 18.50-22.00 | 8.00-10.70 | ≤0.75 | ≤0.030 | ≤0.030 | ≤0.75 |
| Typical Value | 0.071 | 6.75 | 0.72 | 18.85 | 8.9 | 0.16 | 0.014 | 0.012 | 0.18 |
Mechanical Property of Deposited Metal
| Item | Tensile Strength Rm/MPa | Elongation A% |
| Typical Value | 605 | 38 |
Note On Usage:
1.The appropriate flow rate for MIG weding shielding gas is 18-25L/min;The protective ga1.MIG welding shield gasflow 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 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 should be for reference only,users should develop the welding standards appropriate for the production according to their own specific conditions.
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