SJ-2CM(G)
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ER90S-G
Heat-resistant steel Solid welding wire SJ-2CM(G)
Specification：AWS A5.28/ ASME SFA-5.28 ER90S-G
ISO 21952-A-G CrMo2Si
GB/T39279-2020 G62M212C1M3
NB/T 47018.3-2017
Introduction：
Solid wire for 620MPa grade heat resisting steel, operation temperature under 550℃.
High manganese content provides excellent porosity resistance and weld bead appearance
Smooth feeding, stable arc, and beautiful weld bead appearance, low spatter,has excellent welding performance.
The deposited metal has good mechanical properties.
Application：
Boiler equipment
Pressure vessel
Oil and gas pipelines
Offshore platforms
Ship building
Pass the certification：
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Chemical Composition of Wire %
| C | Mn | Si | P | S | Cr | Mo | |
| AWS | ≤0.12 | 0.75-1.50 | 0.30-0.90 | ≤0.025 | ≤0.025 | 2.10-2.70 | 0.90-1.20 |
| TR(HC) | 0.09 | 1.01 | 0.58 | 0.011 | 0.003 | 2.43 | 1.02 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | PWHT | |||||
| Mpa | Mpa | % | 0℃ J | ℃xh | |||||
| TR(HC) | 668 | 598 | 25 | 101 | 690 x 1 | ||||
Packing and Recommended Parameters:(DC+)
| Diameter | Spool | Drum | ||||||
| mm/in | Current range(A) | 0.9kg(2 lbs) | 5kg (11 lbs) | 15kg(33 lbs) | 20kg(44 lbs) | 250kg(551 lbs) | 350kg(771lbs) | 400kg(881 lbs) |
| 0.8(0.030) | 50-100 | √ | √ | √ | √ | |||
| 0.9(0.035) | 50-200 | √ | √ | √ | √ | |||
| 1.0(0.040) | 80-250 | √ | √ | √ | √ | √ | ||
| 1.2(0.045) | 100-350 | √ | √ | √ | √ | √ | ||
| 1.4(0.052) | 200-400 | √ | √ | √ | √ | √ | √ | |
| 1.6(1/16) | 250-500 | √ | √ | √ | √ | √ | ||
| 2.0(5/64) | 270-500 | √ | √ | √ | √ | |||
Welding position：
Shielding Gas：
98% Ar+2% O₂
Points for Attention：
1. PWHT requirement: 690℃ x 1h
2. Preheating and interpass temperature: 185-205 ℃;
3. Gas Flow Rate: 20~25 L/min.
4. Remove the rust, moisture, oil, dust, and others from the welding area.
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