SJF-711M
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E71T-1M
Flux Cored Welding Wire : SJF-711M
Specification：AWS A5.20 E71T-1M
AWS A5.36M E49T1-M21A2-CS1
GB/T10045 T 492 T1-1 M21 A
ISO 17632-A:T42 2 P M21 1
ISO 17632-B: T49 2 T1-1 M21 A
Introduction：
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SJF-711Mi is a kind of Ar+CO₂ mixed gas-shielded flux-cored welding wire for low-carbon steel and 490MPa high strength steel;
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Using DC reverse polarity, it provides deep penetration and has excellent impact toughness;
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It offers excellent all-position welding performance, low fume generation, a soft and stable arc, easy slag removal, and superior X-ray inspection quality.
Application：
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Shipbuliding
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Offshore platforms
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Starage tank
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Steel structure
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Steel pipeline
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Chemical Composition of Wire %：
| C | Mn | Si | P | S | Ni | Cr | Mo | V | |
| AWS | ≤0.18 | ≤2.00 | ≤0.90 | ≤0.030 | ≤0.030 | ≤0.50 | ≤0.20 | ≤0.30 | ≤0.08 |
| TR(HC) | 0.06 | 1.35 | 0.47 | 0.013 | 0.007 | 0.02 | 0.020 | 0.002 | 0.016 |
Mechanical Properties of Deposited Metal：
| Tensile Strength | Yield Strength | Elongation | Impact Value | |||||
| Mpa | Mpa | % | -20℃ J | |||||
| TR(HC) | 565 | 460 | 26 | 123 | ||||
Packing and Recommended Parameters: (Polarity:DC+)
| Diameter | Spool | Drum | ||||
| mm/in | Current range(A) | 0.9kg(2 lbs) | 5kg (11 lbs) | 15kg(33 lbs) | 250kg(551 lbs) | 350kg(771lbs) |
| 0.8(0.030) | 80-220 | √ | √ | √ | √ | |
| 0.9(0.035) | 80-220 | √ | √ | √ | √ | |
| 1.0(0.040) | 100-250 | √ | √ | √ | √ | |
| 1.2(0.045) | 140-350 | √ | √ | √ | √ | √ |
| 1.4(0.052) | 180-370 | √ | √ | √ | ||
| 1.6(1/16) | 200-400 | √ | √ | √ | ||
| 2.0(5/64) | 200-500 | √ | √ | |||
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Welding position：
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Shielding Gas：
75%-80%Ar+CO₂
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Points for Attention：
1. Preheat and interpass temperature: 135~165°C.
2. Shielding gas flow rate 15-25 L/min.
3. Remove the oil, dust and rust from the welding parts.
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