THT50-6 (ER70S-6)
ER70S-6 Carbon Steel TIG Welding Wire | GTAW Cut Length Wire
Certificates:
ABS
BV
CCS
DNV
LR
RINA
RS
Application
- Shipbuilding
- Pressure Vessel
- Energy Industry
- Heavy Machinery
DETAILS
THT50-6 (ER70S-6) GTAW (TIG) cut-length welding wire is designed for high-quality carbon steel welding using 100% Argon shielding gas. Formulated with high levels of silicon and manganese deoxidizers, it delivers superior arc control, excellent puddle fluidity, and clean weld deposits.
Features
- High manganese and silicon deoxidizers tolerate light rust, mill scale, and impurities
- Provides clean, high-quality welds with excellent bead appearance and minimal cleanup
- Optimized for GTAW (TIG) welding using 100% Argon shielding gas
- Superior arc control, puddle fluidity, and X-ray quality weld integrity
- Complies with AWS A5.18 ER70S-6 standards
Typical Applications
- Pressure piping, process lines, and boiler tube welding
- Root pass welding on carbon steel pipe and heavy plate joints
- Precision sheet metal fabrication and structural steel joints
- Automotive chassis, exhaust systems, and custom repairs
- General engineering and maintenance applications
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 | ≥500 | ≥420 | ≥22 | ≥27 |
| Typical Result | 540 | 450 | 26 | 100 |
| Element | C | Mn | Si | S | P | Ni | Cr | Mo | V | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| Requirement (%) | 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 Result (%) | 0.08 | 1.50 | 0.89 | 0.012 | 0.013 | 0.030 | 0.02 | 0.002 | 0.004 | 0.11 |
| Diameter (mm) | 0.8 | 1.0 | 1.2 | 1.6 |
|---|---|---|---|---|
| Current (A) | 50-180 | 70-230 | 80-350 | 120-500 |