THS-308/THT-308 (ER308)
ER308 Stainless Steel Welding Wire | 21%Cr-10%Ni Austenitic
Application
- Shipbuilding
- Pressure Vessel
- Energy Industry
- Heavy Machinery
DETAILS
THS-308/THT-308 (ER308) is a 21%Cr-10%Ni austenitic stainless steel welding wire. It delivers a stable arc, aesthetic bead appearance, and all-position capability, with deposited metal providing excellent resistance to intergranular corrosion.
Features
- 21%Cr-10%Ni austenitic stainless steel chemical composition
- High resistance to intergranular corrosion in weld deposits
- Stable arc performance with minimal spatter and clean, smooth bead appearance
- All-position welding capability for versatile industrial fabrication
Typical Applications
- Pressure vessels, storage tanks, and high-pressure industrial piping
- Chemical, petrochemical, and food processing equipment
- Dairy, beverage, and pharmaceutical machinery fabrication
- General architectural and structural stainless steel welding
Welding Positions
- PA / PB / PC / PD / PE / PF
WARNING
- Rust, oil, moisture, and other contaminants must be removed from the weld zone before welding.
- Shielding gas: Ar + (1%–3%) O₂ is recommended for THS-308, and pure Ar for THT-308.
| Test Item | Rm (MPa) | A （%） |
|---|---|---|
| Typical Result | 600 | 40 |
| Element | C | Mn | Si | S | P | Ni | Cr | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|
| Requirement (%) | ≤0.08 | 1.00-2.50 | 0.30-0.65 | ≤0.020 | ≤0.025 | 9.00-11.00 | 19.50-22.00 | ≤0.75 | ≤0.75 |
| Typical Result (%) | 0.04 | 1.82 | 0.46 | 0.014 | 0.018 | 10.50 | 21.00 | 0.06 | 0.01 |