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TIG Cored Wire for Stainless Steel BGS-F308L
Product Description of BGS-F308L Core TIG Welding Wire for Stainless Steel Austenitic Type/No Argon Back Feed Complies with: • GB/T 17853 TS 308L-R11 1 • AWS A5.22 R308LT1-5 • A5.22M R308LT1-5 • EN ISO 17633-A: T19 9LP11 1 • EN ISO 17...
Description
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Product Description
BGS-F308L
Core TIG Welding Wire for Stainless Steel
Austenitic type / without argon supply from the back side
Meets the requirements:
• GB/T 17853 TS 308L-R11 1
• AWS A5.22 R308LT1-5
• A5.22M R308LT1-5
• EN ISO 17633-A: T19 9LP11 1
• EN ISO 17633-B: TS 308L-R11 1
Purpose
Applicable to petrochemical industry, high pressure vessel, low temperature tank, fertilizer, urea equipment, food processing equipment and other industries. Used for root welding of expanded joints on 18Cr-9Ni stainless steels (eg SUS304L).
Characteristics
1.The main composition is low-carbon steel type 18Cr-9Ni;
2. Does not require argon supply from the reverse side, allows you to obtain a high-quality weld;
3. The weld has an aesthetic appearance, slag can be easily removed and has excellent welding properties.
Chemical composition
| Alloy, wt.% | C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
| GB/T standard | 0.03 | 0.5~2.5 | 1.2 | 18.0~21.0 | 9.0~11.0 | 0.5 | 0.04 | 0.03 | 0.5 |
| AWS Standard | 0.03 | 0.5~2.5 | 1.2 | 18.0~21.0 | 9.0~11.0 | 0.5 | 0.04 | 0.03 | 0.5 |
| Typical value | 0.02 | 1.60 | 0.50 | 20.5 | 10.42 | 0.11 | 0.019 | 0.003 | 0.015 |
Mechanical properties
| Mechanical properties | Yield strength, MPa | Tensile strength, MPa | Elongation, % | Impact strength, J/℃ | Heat treatment ℃×h |
| GB/T standard | — | 520 | 35 | — | — |
| AWS Standard | — | 520 | 30 | — | — |
| Typical value | — | 630 | 40 | — | — |
Welding parameters: (DC-)
| Diameter, mm | Sheet thickness, mm | Root gap, mm | Welding current, A |
| 2.4 | 2~4 | 2.0 | 80~100 |
| 2.4 | 5~9 | 2.5 | 90~120 |
| 2.4 | ≥10 | 3.0 | 90~130 |
Precautions
1.Selection of power supply: DC-; welding current should be selected in accordance with the thickness of the sheet;
2. Shielding gas: pure argon;
3.Gas flow: 10~15L/min;
4.Perform processing of a suitable edge cutting shape;
5. To ensure complete penetration of the reverse weld and sufficient penetration depth, it is necessary to leave a root gap;
6.When welding, a small amount of filler material should be used with fast filling, and the moving distance should be short. Particular attention must be paid to the feed speed: make sure that the welding wire is completely melted, otherwise under-welded areas may form, causing defects.
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