copper coated steel welding wire for ER70S-6 type by diameter 0.80mm, 1.00mm, 1.20mm and 1.60mm packed in 15kg per spool
Co2 gas shielded welding wire has the excellent mechanical performance such as high depositing speed, excellent depositing efficiency, stable arc, little splash, good welding seam. Suitable for all-position welding work.
This series of welding wire is used for welding low carbon steel and low alloy steel structure, such as ships, vehicles, bridges, boilers and buildings etc.
Standards and steel grade | GB | ER49-1 | ER50-3 | ER50-4 | ER50-6 | ER50-G |
AWS | - | ER70S-3 | ER70S-4 | ER70S-6 | ER70S-G | |
Specificationφ(mm) | 0.9-1.6 | 0.8-1.6 | 0.8-1.6 | 0.8-1.6 | 0.8-1.6 | |
Welding wire chemical composition | C | ≤0.11 | 0.06-0.15 | 0.07-0.15 | 0.06-0.15 | ≤0.10 |
Mn | 1.8-2.1 | 0.9-1.4 | 1.00-1.50 | 1.40-1.85 | 1.40-1.90 | |
Si | 0.65-0.95 | 0.45-0.75 | 0.65-0.85 | 0.80-1.15 | 0.55-1.10 | |
P | ≤0.030 | ≤0.025 | ≤0.025 | ≤0.025 | ≤0.030 | |
S | ≤0.030 | ≤0.035 | ≤0.035 | ≤0.035 | ≤0.030 | |
Cr | ≤0.20 | - | - | - | Al≤0.10 | |
Ni | ≤0.30 | - | - | - | Ti0.12-0.20 | |
Cu | ≤0.50 | ≤0.50 | ≤0.50 | ≤0.50 | ≤0.50 | |
Mechanical properties of deposited metal | σs(MPa) | ≥372 | ≥420 | ≥420 | ≥420 | ≥420 |
σb(Mpa) | ≥490 | ≥500 | ≥500 | ≥500 | 500-660 | |
σ5(%) | ≥20 | ≥22 | ≥22 | ≥22 | ≥22 | |
AKV J(℃) | ≥47 | ≥27(-18) | - | ≥27(-29) | ≥47(-20) | |
Shielded gas | Co2 | 80Ar+20%Co2 | Co2 | Co2 | Co2 | |
Description | For welding low carbon steel and some low-alloy steel structures | For welding carbon steel and low-alloy steel structures | For welding carbon steel | For welding low carbon and high strength steel structures of 500MPa | For welding low carbon and high strength steel structures of 500MPa, also used for high current welding | |
