Copper Bridge ER70S-6 Mild Steel MIG Wire
DESCRIPTION
Copper Bridge ER70S-6 is a non-alloy gas-shielded solid wire used with CO₂ or argon-rich gas protection. It offers excellent welding performance, smooth weld formation, low spatter, low porosity sensitivity, and strong weld mechanical properties.
▶ AVAILABLE DIAMETERS
0.024 in, 0.030 in, 0.035 in, 0.040 in, 0.045 in, 0.055 in, 1/16 in
0.6 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.4 mm, 1.6 mm
▶ PACKAGING
2.2 lb spool, 11 lb spool, 33 lb spool, 551 lb drum, 661 lb drum, 772 lb drum
▶ APPLICATIONS
Mainly used for welding corresponding strength grades of carbon steel and low-alloy steel. Can be used for high-speed welding of thin plates and pipelines.
▶ WELDING PROCESS
GMAW / MIG
▶ POLARITY
DC+ (DC reverse)
▶ WELDING POSITIONS
All position
CHEMICAL COMPOSITION OF DEPOSITED METAL (WT.%)
| Element | C | Mn | Si | S | P |
| AWS Requirement | 0.06–0.15 | 1.40–1.85 | 0.80–1.15 | ≤0.035 | ≤0.025 |
| Copper Bridge Typical | 0.08 | 1.50 | 0.92 | 0.008 | 0.010 |
MECHANICAL PROPERTIES OF DEPOSITED METAL
Chemistry requirement/example: C 0.06–0.15 / 0.08 | Mn 1.40–1.85 / 1.50 | Si 0.80–1.15 / 0.92 | Ni ≤0.15 / 0.02 | Cr ≤0.15 / 0.01 | Mo ≤0.15 / 0.01 | V ≤0.03 / 0.001 | Cu ≤0.50 / 0.07 | S AWS ≤0.035 GB-T ≤0.025 / 0.008 | P ≤0.025 / 0.010
| Property | Requirement | Example value |
| Tensile Strength | AWS ≥490 MPa (71 ksi) / GB-T 490–670 MPa (71– 97 ksi) | 550 MPa (80 ksi) |
| Yield Strength | AWS ≥400 MPa (58 ksi) / GB-T ≥390 MPa (57 ksi) | 450 MPa (65 ksi) |
| Elongation | AWS ≥22% / GB-T ≥18% | 26% |
| Impact Value | AWS ≥27 J at -30°C (-22°F) / GB-T ≥47 J at -30°C (-22°F) | 68 J |
RECOMMENDED WELDING PARAMETERS
| Diameter | Current (A) | Voltage (V) | Speed (mm/min) |
| 0.030 in (0.8 mm) | 60–170 | 13–24 | — |
| 0.035 in (0.9 mm) | 60–170 | 13–24 | — |
| 0.045 in (1.2 mm) | 140–260 | 20–29 | — |
| 1/16 in (1.6 mm) | 190–350 | 25–30 | — |
NOTES
1. Use CO₂ gas shielding with purity above 99.8%.
2. Keep wire stickout at 15–25 mm (5/8–1 in). After opening, protect from moisture and use promptly. Use wind protection outdoors when needed.
Home
Tel
Product