
THQ-60D (ER80S-G)
ER80S-G Low-Alloy Steel Welding Wire | High Strength Solid Wire
Application
- Shipbuilding
- Pressure Vessel
- Energy Industry
- Heavy Machinery
DETAILS
THQ-60D (ER80S-G) is a high-strength low-alloy steel welding wire engineered for joining high-tensile steels. Formulated for superior mechanical properties and crack resistance, it delivers excellent arc stability, smooth bead appearance, and reliable performance on critical structural fabrications.
Features
- High tensile strength (80 ksi / 550 MPa class) with superior yield properties
- Low-alloy formulation providing excellent crack resistance and weld toughness
- Smooth, stable arc with minimal spatter and easy slag-free cleanup
- Optimized for critical structural welding requiring reliable mechanical integrity
Typical Applications
- High-strength structural steel fabrication and bridge construction
- Pressure vessels, boilers, and heavy-duty piping systems
- Earthmoving machinery, cranes, and heavy equipment manufacturing
- Shipbuilding, offshore platforms, and high-yield steel structures
- Joining matching high-strength and low-alloy carbon steels
Welding Positions
- PA / PB / PC / PD / PE / PF / PG
WARNING
- Rust, oil, moisture, and other contaminants must be removed from the weld zone before welding.
- The mechanical properties of all-weld metal are determined by heat input; lower heat input is generally preferred to higher heat input.
| Test Item | Rm (MPa) | Rel / RP₀.₂ (MPa) | A (%) | KV₂ (J) -30℃ |
|---|---|---|---|---|
| Requirement | 550-740 | ≥460 | ≥17 | ≥27 |
| Typical Result | 600 | 531 | 25 | 100 |
| Element | C | Mn | Si | S | P | Mo | Ti | Cu |
|---|---|---|---|---|---|---|---|---|
| Requirement (%) | ≤0.12 | 1.20-1.90 | 0.40-0.80 | ≤0.025 | ≤0.025 | 0.20-0.50 | 0.05-0.20 | ≤0.50 |
| Typical Result (%) | 0.08 | 1.75 | 0.59 | 0.004 | 0.011 | 0.33 | 0.11 | 0.12 |
| Diameter (mm) | 1.0 | 1.2 | 1.6 |
|---|---|---|---|
| Current (A) | 70-230 | 80-350 | 120-500 |