Changshu Longteng Special Steel Co., Ltd.
LONGTENG WELDING CONSUMABLES WELDING THE GLOBAL
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AWS A.5.18 ER70S-6 Mig Mag Copper Wire CO2 Welding Wire Cooper Coated
Welding wire chemical Composition(%)
| Trade mark Composition | C | Mn | Si | S | P | Ni | Cr | Cu |
| ER49-1 | ≤0.11 | 1.80-2.10 | 0.65-0.95 | ≤0.030 | ≤0.030 | ≤0.30 | ≤0.20 | ≤0.50 |
| ER70s-6 | 0.06-0.15 | 1.40-1.85 | 0.80-1.15 | ≤0.035 | ≤0.025 | ≤0.50 |
Mechanical properties of deposited metal
| Trade mark Performance | Yield strength Mpa | Tensile strength Mpa | Extension rate (%) | Shock valueJ() | Protect gas |
| ER49-1 | ≥372 | ≥490 | ≥20 | ≥47(Room temperature) | CO2 |
| ER70s-6 | ≥420 | ≥500 | ≥22 | ≥27(-29) | CO2 |
Specification and reference current
| Diameter(mm) | 0.80 | 1.00 | 1.20 | 1.60 |
| Currents(A) | 40-140 | 70-250 | 80-350 | 170-550 |
| Voltage(V) | 16-21 | 17-27 | 18-30 | 23-43 |
Chemical Composition(%)
| Chemical Composition | C | Mn | Si | S | P | Ni | Cr | Cu |
| Guarantee Value | ≤0.10 |
0.90~ 1.30 |
0.35~ 0.65 |
≤0.025 | ≤0.025 |
0.20~ 0.50 |
0.20~ 0.50 |
0.20~ 0.50 |
| General Result | 0.057 | 1.21 | 0.56 | 0.008 | 0.016 | 0.32 | 0.31 | 0.31 |
Mechanical Properties of Deposited Metal
| Test Item | Rm(MPa) | ReL/Rp0.2(MPa) | A(%) |
KV2(J) -40℃ |
| Guarantee Value | ≥440 | ≥340 | ≥22 | ≥60 |
| General Result | 525 | 430 | 26 | 139,143,135 |
Reference Current(DC+)
| Size(mm) | Current range (A) | GAS flow rate(L/min) |
| Φ0.8 | 50~100 | 15 |
| Φ1.0 | 50~220 | 15~20 |
| Φ1.2 | 80~350 | 15~25 |
| Φ1.6 | 170~550 | 20~25 |