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MIG Welding Wire for Stainless Steel BMS-439
Product Description of BMS-439 MIG Welding Wire for Stainless Steel Ferritic Type Compliance: AWS A5.9 ER439 A5.9M ER439 EN ISO 14343-B: SS439 JIS Z3321 YS439 Application Suitable for welding 17Cr type stainless steel, and can also be applied to making equipment,...
Description
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Product Description
BMS-439
MIG Welding Wire for Stainless Steel
Ferritic type
Compliance:
AWS A5.9 ER439
A5.9M ER439
EN ISO 14343-B: SS439
JIS Z3321 YS439
Purpose
Suitable for welding 17Cr stainless steel and can also be used for oxidation and corrosion resistant equipment such as exhaust system components (such as 409).
Characteristics
1. The deposited metal has stable mechanical properties and a high percentage of passing X-ray inspection;
2. Smooth wire feeding, stable arc, good seam formation, minimal spatter, excellent welding properties.
Chemical composition
| Alloy, wt. % | C | Mn | Si | Cr | Ni | Mo | P | S | Ti |
| EN standard | 0.04 | 0.80 | 0.8 | 17.0~19.0 | 0.60 | 0.75 | 0.03 | 0.03 | 10×C~1.1 |
| AWS Standard | 0.04 | 0.80 | 0.8 | 17.0~19.0 | 0.60 | 0.75 | 0.03 | 0.03 | 10×C~1.1 |
| Approximate value | 0.02 | 0.52 | 0.52 | 18.36 | 0.26 | 0.02 | 0.014 | 0.007 | 0.29 |
Mechanical properties
| Mechanical characteristics | Yield strength, MPa | Tensile strength, MPa | Elongation, % | Impact strength, J/°C | Heat treatment, °C × h |
| YB/T standard | — | — | — | — | — |
| AWS Standard | — | — | — | — | — |
| Approximate value | — | 455 | 28 | — | — |
Welding parameters: (DC+)
| Diameter, mm | 0.8 | 1.0 | 1.2 |
| Current, A (lower/horizontal position) | 70-150 | 100-200 | 140-220 |
| Current, A (vertical/ceiling position) | 50-120 | 80-150 | 120-180 |
Welding position
(pictograms indicate: lower, horizontal, vertical, ceiling and other spatial positions when welding)
Precautions
1. Follow general solid wire welding guidelines for stainless steel;
2. Shielding gas: 98% Ar + 2% O₂;
3. Maintain interpass temperature ≤150°C.
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