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TIG Welding Wire for Stainless Steel with Back Seam Protection BGS-E309L
Product Description of BGS-E309L Solid Welding Wire for Stainless Steel TIG Welding Wire with Back Side Protection Complies with: AWS A5.9 ER309L (mod) A5.9M ER309L (mod) Purpose Mainly used to perform root welding of the transition layer when...
Description
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Product Description
BGS-E309L
Solid Welding Wire for Stainless Steel
TIG welding wire with reverse side protection
Meets the requirements:
AWS A5.9 ER309L (mod)
A5.9M ER309L (mod)
Purpose
Mainly used to perform root welding of the transition layer when welding dissimilar joints of stainless steel with carbon or low-alloy steel, as well as for root welding of other dissimilar materials.
Characteristics
1.The main composition is low-carbon C-22Cr-12Ni alloy, which is one of the most widely used welding materials for austenitic stainless steels;
2. This self-shielding TIG welding wire ensures that the protective coating penetrates into the back of the weld pool when welding. A dense protective layer is uniformly formed on the front and back surfaces of the weld, preventing oxidation of both sides of the welded joint. One-sided welding is provided with the formation of a seam on both sides. After cooling the weld, the welding slag automatically peels off, the surface of the weld has an aesthetic appearance and ensures good fusion with the base metal;
3.The application method of this welding wire is similar to ordinary argon arc welding wire for stainless steel. The special coating on the surface does not adversely affect weldability and mechanical properties. A stable arc, beautiful seam formation and good fluidity of the molten metal are ensured.
Chemical composition
| Metal content, wt.% | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| Typical value | 0.028 | 1.65 | 0.72 | 23.5 | 13.10 | 0.01 | 0.017 | 0.008 | 0.01 |
Mechanical properties
| Mechanical properties | Yield strength, MPa | Tensile strength, MPa | Elongation, % | Impact strength, J/℃ | Heat treatment ℃×h |
| GB/T standard | — | — | — | — | — |
| AWS Standard | — | — | — | — | — |
| Typical value | — | 612 | 34 | — | — |
Welding position
Precautions
1. Follow the general rules for welding with solid welding wire for stainless steel;
2. Shielding gas: pure Ar;
3. Maintain interlayer temperature below 150℃.
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