Price include Alloy Surcharge !Description
SFC-71M – Flux-Cored Welding Wire for Steel Structures (1.2mm x 15kg)
Flux-cored welding wire designed for carbon steel structures delivers strong welds and reliable performance across industrial applications. It ensures excellent arc stability, deep penetration, and consistent mechanical properties—ideal for shipbuilding, tanks, bridges, and pipelines.
This wire minimizes spatter and fumes, supports good slag removal, and performs exceptionally well with both CO₂ and Argon-CO₂ mixes as shielding gas.
Welding Classifications
| Standard | Classification |
|---|---|
| AWS A5.18 | E70C-6C/6M |
| AWS A5.36 | E70T15-C1/M21-CS1 |
| JIS Z3313 | T 49 4 T15-0 C/M AU |
| EN ISO 17632-A | T42 2 M C1 /M21 3 H5 |
Chemical Composition of Weld Metal (wt%)
(Shielding gas: 80% Ar + 20% CO₂)
| C | Mn | Si | P | S |
|---|---|---|---|---|
| 0.051 | 1.43 | 0.45 | 0.010 | 0.006 |
Mechanical Properties of Weld Metal
(Shielding gas: 80% Ar + 20% CO₂)
| Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Value -40℃ (J) |
|---|---|---|---|
| 480 | 540 | 26 | 50 |
Recommended Welding Parameters
| Diameter (mm) | Position | Voltage (V) | Current (A) | Extension (mm) | Gas Flow (l/min) |
|---|---|---|---|---|---|
| 1.2 | Flat | 28–36 | 150–300 | 10–15 | 15–25 |
| 1.4 | Flat | 28–38 | 180–350 | 15–20 | 15–25 |
| 1.6 | Flat | 30–40 | 200–400 | 15–30 | 15–25 |
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