ER70S-6 Copper-Coated Solid Wire – All-Position, Premium TIG Welding Wire
Designed for welding carbon steel and low-alloy steel structures of corresponding strength levels, the ER70S-6 is a 500 MPa-class copper-coated solid wire for TIG welding. It is specifically intended for pipeline TIG welding and root pass welding in various positions. The wire offers a stable arc, excellent welding process performance, and beautiful weld bead appearance.
Key Features:
500 MPa-Class TIG Welding Wire – Reliable Base Material Performance
ER70S-6 is a 500 MPa-class copper-coated carbon steel solid wire. It is specifically designed for TIG welding of carbon steel and low-alloy steel structures of corresponding strength levels, providing reliable performance for demanding welding applications.Stable Arc & Excellent Welding Process
The wire delivers a highly stable arc during the welding process, ensuring excellent welding process performance. This stability contributes to consistent weld quality, smooth operation, and superior overall welding results.Beautiful Weld Bead Appearance
The ER70S-6 produces a beautifully formed weld bead, meeting high aesthetic standards and reducing the need for post-weld cleanup. It ensures a clean and professional finish on the workpiece.All-Position Welding Capability
Designed for pipeline TIG welding and root pass welding, the wire demonstrates excellent all-position welding capabilities. This makes it highly versatile for complex pipe geometries, field welding, and various structural applications.
Specifications
Typical Chemical Composition (%)
| C | Mn | Si | S | P | Ni | Cr | Mo | V | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 0.06–0.15 | 1.40–1.85 | 0.80–1.15 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.15 | ≤0.15 | ≤0.03 | ≤0.50 |
Typical Mechanical Property (Ar)
| Tensile Strength Rm (MPa) | Yield Strength ReL/Rp0.2 (MPa) | Elongation A (%) | Impact Toughness KV₂ at -30°C (J) |
|---|---|---|---|
| ≥500 | ≥420 | ≥22 | ≥27 |
Classification: AWS A5.18 ER70S-6; GB/T 8110 ER50-6; ISO 14341: N/A
Type: Copper-coated carbon steel solid wire for TIG welding
Polarity: DC-
Shielding Gas: Ar
Available Diameters: 1.6, 2.0, 2.5, 3.0mm
Welding Positions: All-position
Packaging: 5 kg/box, 4 boxes/pcs
Operating Notes
Before welding, rust, oil, moisture, and other impurities on the workpiece must be removed.
Users should establish suitable welding procedures according to actual conditions.
Ideal For
Welding of carbon steel and 500 MPa-class low-alloy steel structures. It is specifically suitable for pipeline TIG welding and root pass welding in various positions.