TIG FILLER WIRE CROMO 1 ER80S-B2 2.4MM
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TIG Filler Wire ER80S-B2 (Cromo 1) – 2.4mm | Premium Chromoly TIG Welding Rod
Product Title: ER80S-B2 TIG Welding Wire 2.4mm – 1.25Cr-0.5Mo Chromoly Filler Rod for Boiler & Pressure Vessel Applications
Product Overview
Our ER80S-B2 TIG filler wire, also known as Cromo 1 filler rod, is a premium low-alloy steel welding wire specifically engineered for GTAW (Gas Tungsten Arc Welding) of chromium-molybdenum (Cr-Mo) steels. With a diameter of 2.4mm, this precision-manufactured rod delivers exceptional weld quality, strength, and corrosion resistance for demanding high-temperature and high-pressure applications.
Key Specifications
| Property | Detail |
|---|---|
| AWS Classification | ER80S-B2 |
| Common Name | Cromo 1 / 1.25Cr-0.5Mo Filler Wire |
| Diameter | 2.4mm |
| Process | TIG / GTAW |
| Alloy Composition | ~1.25% Chromium, ~0.5% Molybdenum |
| Standard | AWS A5.28 / ASME SFA 5.28 |
| Typical Length | 1 meter (36") straightened cut lengths |
| Copper Coating | Bare, uncoated finish |
Why Choose ER80S-B2 Cromo 1 TIG Wire?
- High-Temperature Strength: Formulated for services operating at elevated temperatures, ideal for power generation and refinery piping
- Superior Creep Resistance: The Cr-Mo alloy composition resists deformation under prolonged heat and stress
- Excellent Weld Puddle Control: Smooth, consistent feeding for precise TIG welding with minimal spatter
- Crack-Resistant Deposits: Produces sound, dense welds with low hydrogen content
- Matched Base Metal Chemistry: Compatible with P11, P12, T11, T12 chromoly steel grades
Applications
This ER80S-B2 2.4mm TIG rod is widely used in:
- Power plant boiler tube and header welding
- Petrochemical and refinery piping systems
- Pressure vessel fabrication
- Steam pipe and superheater tube repair
- Oil & gas pipeline construction requiring Cr-Mo alloy joints
- Heat exchanger and reformer tube welding
Recommended Welding Parameters
- Shielding Gas: 100% Argon (or Argon/Helium blend for deeper penetration)
- Polarity: DCEN (Direct Current Electrode Negative)
- Preheat/Interpass: Follow WPS requirements for Cr-Mo base metals (typically 150–300°C preheat)
- Post-Weld Heat Treatment (PWHT): Recommended per code requirements to relieve stress and optimize mechanical properties
Ideal For
Welders, fabricators, and industrial contractors working in power generation, petrochemical, refining, and heavy industrial sectors who require certified, code-compliant chromoly filler metal for critical service welds.
This product is priced “per KG”. The minimum quantity available to purchase is shown in the "Pack Qty".
