ER80S-B2 MIG TIG Welding Wire
1.25Cr-0.5Mo alloy filler
Petro power pipe welding use
Product Overview
Dayang ER80S-B2 welding wire complies with AWS A5.28 standard, 1.25%Cr-0.5%Mo low alloy filler metal for GTAW/TIG, GMAW/MIG welding. It is designed for long-term high-temperature service up to 550°C, stable arc, low spatter and radiographic qualified weld seam. Our annual ER80S-B2 output reaches 2000 tons, stable supply for global petrochemical, power plant and refinery clients.
Key Features & Benefits
- High Temperature Performance: Maintains mechanical properties at elevated temperatures up to 550°C
- Excellent Corrosion Resistance: Superior resistance to sulfur-bearing crude oil corrosion in refineries
- Outstanding Weldability: Stable arc characteristics with minimal spatter and excellent bead appearance
- All-Position Capability: Suitable for flat, horizontal, vertical, and overhead welding positions
- Low Hydrogen Content: H4 level hydrogen control ensures excellent crack resistance
Technical Specifications
Chemical Composition (Typical, wt.%)
| Element | C | Mn | Si | Cr | Mo | P | S | Cu |
|---|---|---|---|---|---|---|---|---|
| AWS A5.28 Standard | 0.07~0.12 | 0.40~0.70 | 0.40~0.70 | 1.20~1.50 | 0.40~0.65 | ≤0.025 | ≤0.025 | ≤0.35 |
Mechanical Properties (After 620℃ PWHT 1h)
| Performance Index | AWS Minimum Requirement |
|---|---|
| Tensile Strength | 550 MPa (80000 psi) |
| Yield Strength | 470 MPa (68000 psi) |
| Elongation | 19% |
| Impact Toughness (-20℃) | ≥27J |
Applications
- Power generation: Boiler tubes, superheaters, reheaters, steam pipes
- Petrochemical industry: Hydrogen reactors, heat exchangers, high-pressure pipelines
- Pressure vessels: High-temperature pressure vessels and storage tanks
- Nuclear facilities: Critical components requiring long-term reliability
Quality Assurance
Dayang Welding maintains strict quality control throughout production, ensuring consistent chemical composition and mechanical properties. Each batch undergoes comprehensive testing including spectral analysis and mechanical property verification.
FAQ
Q: What steel matches ER80S-B2 welding wire?
A: It fits all 1.25Cr-0.5Mo P4 series steels, including SA335 P11, SA213 T11, SA387 Gr11, SA182 F11. Not suitable for 2.25Cr-1Mo P5 steel (choose ER90S-B3 instead).
Q: What shielding gas for ER80S-B2 MIG/TIG?
A: TIG welding uses 100% pure Argon; MIG adopts Ar+2~5% CO2 mixed shielding gas.
Q: Is Dayang ER80S-B2 available for OEM packaging?
A: Yes, we support custom metal spool, private brand label, carton printing, mixed-size packaging for distributors.
Q: Can I get free ER80S-B2 samples?
A: Free small samples are provided, buyers only bear international freight cost; mass order will refund sample freight.
Q: What's the storage requirement for ER80S-B2 filler rod?
A: Keep sealed in dry warehouse, avoid moisture exposure; re-dry 200℃/1h if surface damp appears before welding.
Why Choose Dayang Welding
- Factory founded in 1995, 25 years Cr-Mo welding wire manufacturing experience, ISO certified factory.
- Independent full production line: smelting-forging-rolling-drawing-coating, fully self-controlled quality, no outsourcing.
- Global one-stop service: Free samples, 24h sales reply, customized label & carton packaging, sea/air shipment support.
- Strict furnace-by-furnace inspection system: raw material → pre-furnace → semi-finished → finished four-stage full testing, zero unqualified shipment.
- Large inventory, fast lead time, annual output 2000 tons to support bulk orders for global distributors & engineering contractors.
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