SJ-70G
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ER100S-G
Low Alloy High-Strength Steel - SJ 70G
Specification：AWS A5.28 ER100S-G
ISO 16834-A G694M21ZMn3Ni1.5CrMo
GB/T39281 G 69A 4M 21 ZN2M2T
GB/T8110 ER69-G
Introduction：
Gas shielding solid MIG wire for 700MPa grade high strength steel.
It has good impact toughness and crack resistance in low-temperature environments.
Smooth feeding, stable arc, and beautiful weld bead appearance, low spatter,the deposited metal has good mechanical properties.
Application：
Bridges
Pressure Vessel
pipelines
Construction machinery
Ships
Pass the certification：
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Chemical Composition of Wire %
| C | Mn | Si | P | S | Ni | Cr | Mo | Cu | Ti | V | |
| AWS | ≤0.12 | 1.25-1.90 | ≤0.85 | ≤0.02 | ≤0.02 | 0.5-2.1 | ≤0.65 | 0.20-0.55 | ≤0.65 | ≤0.2 | ≤0.10 |
| TR(HC) | 0.09 | 1.61 | 0.66 | 0.016 | 0.002 | 0.83 | 0.20 | 0.30 | 0.14 | 0.12 | 0.01 |
Mechanical Properties of Deposited Metal
| Tensile Strength | Yield Strength | Elongation | Impact Value | |||||
| Mpa | Mpa | % | -40℃ J | |||||
| TR(HC) | 745 | 650 | 25 | 81 | ||||
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：
75% ~80%Ar+CO₂
OR：
CO₂
Points for Attention：
1. Gas Flow Rate: 20~25 L/min.
2. Contact Tip-to-Work Distance (CTWD): 15~25 mm.
3. Remove the rust, moisture, oil, dust, and others from the welding area.
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