TIG SJ-2CM(G)
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ER90S-G
Low Carbon and High Strength Steel-TIG SJ-2CM(G)
Specification：AWS A5.28 ER90S-G
ASME SFA-5.28 ER90S-G
IS0 21952-A-W CrMo2Si
GB/T 39279-2020 W62I12C1M3
NB/T 47018.3-2017
Introduction：
TIG welding wire for 620Mpa grade heat resistant steel.
For 2.25%Cr-1%Mo steel in high temperature envoirment,working temperature below 520℃.
Excellent welding performance with smooth feeding, stable arc, neat welds, low spatter.
Application：
high-temperature pipelines
pressure vessels
petrochemical equipment
Pass the certification：
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Chemical Composition of Wire %
| C | Mn | Si | P | S | Cu | Mo | Cr | |
| AWS | ≤0.12 | 0.75-1.50 | 0.30-0.90 | ≤0.025 | ≤0.025 | ≤0.40 | 0.90-1.20 | 2.10-2.70 |
| TR(HC) | 0.10 | 1.02 | 0.57 | 0.010 | 0.003 | 0.09 | 1.01 | 2.46 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | PWHT | |||||
| Mpa | Mpa | % | R.T℃ J | ℃xh | |||||
| TR(HC) | 695 | 576 | 25 | 118 | 690 x 1 | ||||
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. Preheating and interpass temperature: 185-205 ℃;
4. Remove the rust, moisture, oil, dust, and others from the welding area.
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