TIG SJ-09CrCuSb
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ER70S-G
Weathering Resistant Steel TIG SJ-09CrCuSb
Specification：AWS A5.28 ER70S-G
NB/T 47018.3-2017
GB/T 150.2
Introduction：
For 500Mpa grade steel,a sulfuric acid corrosion resistant TIG welding wire.
High crack resistance and strong sulfuric acid dew point corrosion resistance.
Excellent welding performance with smooth feeding, stable arc, neat welds, low spatter.
Suitable for welded structures such as air preheaters and heat exchangers operating in high-sulfur gas environments.
Application：
Electric power
Petrochemical
Metallurgy
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Chemical Composition of Wire %
| C | Mn | Si | P | S | Cu | Ni | Sb | Cr | Mo | Sn | V | Pb | As | Bi | |
| AWS | ≤0.12 | 0.35-0.65 | 0.20-0.40 | ≤0.025 | ≤0.015 | 0.25-0.45 | - | 0.04-0.10 | 0.70-1.10 | - | - | - | - | - | - |
| TR(HC) | 0.08 | 0.48 | 0.29 | 0.013 | 0.007 | 0.30 | 0.10 | 0.07 | 0.90 | 0.02 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | |||||
| Mpa | Mpa | % | -20℃ J | |||||
| TR(HC) | 552 | 448 | 28 | 115 | ||||
Diameter/Packing
| Diameter | Tube-1000mm |
| mm/in | 5kg (11 lbs) |
| 1.6(0.063) | √ |
| 2.0(0.079) | √ |
| 2.4(0.095) | √ |
| 3.2(0.126) | √ |
| 4.0(0.165) | √ |
Welding position：
Shielding Gas：
Ar
Polarity：
DC-
Points for Attention：
1. Pure Ar > 99.99%.
2. 50-200A, protective gas 5-15L/min,200-350A, protective gas 12-20L/min.
3. Remove the rust, moisture, oil, dust, and others from the welding area.
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