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ER70S-3
Application: Used for the welding of steel structure with the corresponding strength grade,as well as the welding of low-carbon sheet workpiece with a complete surface treatment e.g.bridges,vehicle construction pipelines,vehicle manufacturing etc.
Characteristics: YH50-3 welding wire is 500MPa carbon steel welding wire and applying CO₂gas shield with an excellent fluidity and crack resistance,low splash in the course of welding.Its welding slag is thin and easy to fall off.Applicable to the welding with a smooth and delicate welding bead,especially the low-capacitance and high-speed welding of sheets.
Chemical Component of Welding Wire:(Mass Fraction)
| Item | C | Mn | Si | S | P | Ni | Cr | Mo | V | Cu |
| Guarantee Value | 0.06 -0.15 | 0.90 -1.40 | 0.45 -0.75 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.03 | ≤0.50 |
| Typical Value | 0.08 | 1.25 | 0.59 | 0.012 | 0.013 | 0.03 | 0.02 | 0.002 | 0.003 | 0.12 |
Mechanical Property of Deposited Metal
| Item | Tensile Strength Rm/MPa | Yield Strength ReL/Rp⁰.2 MPa | Elongation A% | Compound V-Type Notch Impact Absorption KV₂ (J) -20℃ | Shielding Gas |
| Guarantee Value | 490-670 | ≥390 | ≥18 | ≥27 | CO₂ |
| Typical Value | 542 | 445 | 25 | 80 |
Recommended Welding Parameter:(DC+)
| Welding Wire Diameter(mm) | 0.8 | 1.0 | 1.2 | 1.6 |
| Welding Current (A) | 50-180 | 70-230 | 80-350 | 120-500 |
Note On Usage:
1.When applying the argon-rich gas for welding,it is required not to control the arc voltage excessively low in order to prevent the generation of bubbles,and the arc length should be between 4 to 5 mm.
2.The welding area allows to have appropriate impurities e.g.oil,rust,water etc.
3.When applying the argon-rich gas for welding,it is able to get a good formation of weld with less splash.However,in order to prevent the generation of weld hydrogen flaking,it is required to prepare the high-purity gas and master certain welding techniques.
4.The suggestions on above-mentioned welding method,conditions and standards should be for reference only.Users should perform the process evaluation according to their won welding characteristics prior to applying the welding wire for formal product welding.
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