Gas-shielded solid welding Wire ER70S-G
AWS A5.18 ER70S-G
JIS Z3316 YGT50
Welding Position: F,H,HF,OH,V
Type of Current: DCEP
Features & Applications
ER70S-G is widely used for structures fabricated by 500-550MPa tensile strength low alloy steels of X60, X65, X70, 18Nb and 12-16Mn etc. such as bridges, heavy engineering machinary, vehicles, skyscrapers, petroleum & chemical industry equipment and so on.
Chemical Composition of the Wire(%)
| C | Mn | Si | S | P | Ni | Cr | Mo | Ti | Cu | |
| Standard | ≤0.15 | 1.40-1.90 | 0.55-1.10 | ≤0.030 | ≤0.030 | — | — | — | 0.12-0.20 | ≤0.50 |
| Typical | 0.10 | 1.45 | 0.71 | 0.012 | 0.011 | — | — | — | 0.15 | 0.14 |
Mechanical Properties of Deposited Metal(AW)
| Yield Point Reh (Mpa) |
Tensile Strength Rm(Mpa) |
Elongation A4(%) |
Impact Value(J) | Shield Gas | |
| -30°C | CO₂ | ||||
| Standard | ≥420 | ≥520 | ≥22 | ≥47 | purity≥99.98% |
| Typical | 440 | 560 | 30 | 75 |
The standard of mechanical properties conforms to shipping institutions and the certificate of inspection would follow it unless the purchaser has special requirement.
Size & Recommended Current(DC⁺)
| Diameter(mm) | 0.6 | 0.8 | 0.9 | 1.0 | 1.2 | 1.6 |
| Current(A) | 40-120 | 40-140 | 40-180 | 50-220 | 80-350 | 120-550 |
Notice:
1. To avoid rust the wire must be kept in dry condition and keep the package in good condition also before welding
2. To avoid welding defect the shield gas should be pure particularly no moisture in it.
3. The surfaces to be welded must be cleaned away impurities of oil contamination, rust, moisture and so on.
4. The welding conditions mentioned above for reference only and it is better to do a welding procedure qualification according to project before put it into formal welding.
