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ER80S-B2 TIG Filler Rod & MIG Wire Supplier in India
Nicorex Alloys is an ISO 9001 and ISO 14001 certified stockist and supplier of ER80S-B2 chrome-moly welding wire in Mumbai, India. We maintain a supply of this welding wire according to AWS A5.28 / ASME SFA-5.28 specifications to ensure consistent product quality.
ER80S-B2 is a 1.25Cr-0.5Mo low-alloy steel solid wire suitable for GTAW (TIG), GMAW (MIG) and SAW processes. The chromium content at 1.20-1.50% provides high temperature strength, while molybdenum at 0.40-0.65% delivers creep strength and resistance to hydrogen attack. Together, this 1.25Cr-0.5Mo chemistry serves reliably at temperatures up to 540°C (1000°F) in steam, hydrogen and hydrocarbon service. ER80S-B2 is a standard filler wire for P-4 group steels, such as SA-335 P11 pipes, SA-213 T11 superheater tubes, SA-182 F11 fittings, and SA-217 WC6 castings. After welding, the joint must be post-weld heat-treated (PWHT) at 620–680°C. Then the weld metal reaches at least 550 MPa (80 ksi) tensile strength with 19% elongation.
ER80S-B2 is available as TIG rods (1.6 to 3.2 mm, 5 kg tubes), MIG spools (0.8 to 1.2 mm, D200/D300), and SAW wire (2.4 to 4.0 mm, 25 kg coils). We also supply the matching SMAW electrode E8018-B2 (AWS A5.5) and FCAW wire E8XT1-B2, giving projects full WPS continuity across all welding processes. Every lot ships with EN 10204/3.1 mill test certificates and PMI verification.
ER80S-B2 Welding Wire Specifications
| AWS Classification | A5.28 ER80S-B2 |
|---|---|
| Processes | GTAW, GMAW, SAW |
| Polarity | DCEN (TIG) / DCEP (MIG) |
| Shielding Gas (TIG) | 100% Argon |
| Shielding Gas (MIG) | Ar + 2% O₂ or 75Ar / 25CO₂ |
| TIG Rods Diameter | 1.6, 2.4, 3.2 mm |
| MIG Spool Diameter | 0.8, 0.9, 1.0, 1.2 mm |
| SAW Wire Diameter | 2.4, 3.2, 4.0 mm |
AWS Classification Explained: What Does ER80S-B2 Mean?
| Designator | Meaning |
|---|---|
| ER | Electrode/Rod (solid wire) |
| 80 | 80 ksi (550 MPa) minimum tensile after PWHT |
| S | Solid wire |
| B2 | 1.25Cr-0.5Mo alloy composition (P-4 base metals) |
Chemical Composition of ER80S-B2 Weld Deposit (%)
The table presents the typical chemical composition of ER80S-B2 weld deposits, showing element ranges and actual values according to AWS A5.28 specifications.
| Specification | Carbon (C) | Manganese (Mn) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) | Nickel (Ni) | Phosphorus (P) | Sulfur (S) | Copper (Cu) |
|---|---|---|---|---|---|---|---|---|---|
| AWS A5.28 Range (%) | 0.07–0.12 | 0.40–0.70 | 0.40–0.70 | 1.20–1.50 | 0.40–0.65 | 0.20 max | 0.025 max | 0.025 max | 0.35 max |
| Typical (%) | 0.09 | 0.55 | 0.48 | 1.35 | 0.55 | 0.10 | 0.012 | 0.006 | 0.15 |
All-Weld-Metal Mechanical Properties of ER80S-B2
| Specification | Tensile Strength | Yield Strength (0.2%) | Elongation | Charpy V-Notch (0°C) |
|---|---|---|---|---|
| AWS A5.28 Minimum | 550 MPa (80 ksi) | 470 MPa (68 ksi) | 19% | Not specified |
| Typical (PWHT 621°C / 1 hr) | 586 MPa (85 ksi) | 496 MPa (72 ksi) | 22% | 81 J (60 ft-lbs) |
Base Metal Compatibility of ER80S-B2 (1.25Cr–0.5Mo Steels)
The tables below show which metals ER80S-B2 filler works with. It covers common P-4 (1.25Cr-0.5Mo) steels and gives simple guidelines for welding ER80S-B2 to other types of metals.
Common P-4 Base Metal Specifications:
| Base Metal Spec | Grade | UNS Number | Product Form |
|---|---|---|---|
| SA-335 / A335 | P11 | K11597 | Seamless pipe |
| SA-213 / A213 | T11 | K11597 | Seamless tube |
| SA-182 / A182 | F11 (Cl. 1, 2, 3) | K41545 | Forgings (flanges, fittings) |
| SA-217 / A217 | WC6 | J12072 | Castings |
| SA-387 / A387 | Gr.11 (Cl. 1, 2) | K11789 | Plate |
| SA-336 / A336 | F11 | K11572 | Heavy forgings |
Dissimilar Metal Joining:
| Joint Configuration | Recommended Filler | Critical Notes |
|---|---|---|
| P-4 to P-3 (C-0.5Mo) | ER80S-B2 | Use a higher-alloy filler to match the P-4 side. |
| P-4 to P-1 (Carbon Steel) | ER80S-B2 | Use careful preheat; PWHT per P-4 requirements. |
| P-4 to P-5A/5B (2.25Cr / 5Cr) | ER90S-B3 or ER80S-B6 | Match the higher-alloy side; Do not use ER80S-B2. |
| P-4 to P-8 (Austenitic SS) | ERNiCr-3 or ER309L | Use Ni-base or Stainless filler; Do not use B2 fillers. |
Recommended Welding Parameters for ER80S-B2
The table below gives simple recommended settings for GTAW and GMAW welding with ER80S-B2.
GTAW (TIG) Parameters
| Material Thickness | Wire Dia. | Amps | Cup Size | Argon (CFH) |
|---|---|---|---|---|
| 1.6 mm (1/16″) | 1.6 mm | 100–140 | 3/8″ | 20 |
| 2.4 mm (3/32″) | 1.6 mm | 100–160 | 3/8″ | 20 |
| 3.2 mm (1/8″) | 1.6 mm | 125–200 | 7/16″ | 20 |
| 4.8 mm (3/16″) | 2.4 mm | 150–250 | 7/16″ | 25 |
GMAW (MIG) Parameters
| Transfer Mode | Wire Dia. | Volts | Amps | Shielding Gas |
|---|---|---|---|---|
| Spray | 0.9 mm (0.035″) | 28–32 | 165–200 | 98Ar/2He |
| Spray | 1.2 mm (0.045″) | 30–34 | 180–220 | 75Ar/25CO₂ |
| Short Arc | 0.9 mm (0.035″) | 22–25 | 100–140 | 100% CO₂ |
| Short Arc | 1.2 mm (0.045″) | 23–26 | 120–150 | 75Ar/25CO₂ |
Get ER80S-B2 Filler Wire at Competitive Prices
Industrial Applications of Chrome-Moly ER80S-B2 Filler Wire
The parameters given below apply to all three variants. ER309LSi runs smoother in GMAW.
- Power Generation: ER80S-B2 is used for superheater and reheater tubing, main steam and hot reheat piping, headers, boiler drums and castings.
- Refinery: ER80S-B2 is used for process piping, heat exchangers, reactors, and columns handling hydrocarbons at elevated temperatures.
- Petrochemical: ER80S-B2 is used for piping and components in catalytic reformers, hydrodesulfurisation units, and amine treating systems.
- Fertiliser: ER80S-B2 is used for pipes and parts in ammonia production systems, especially in reformers.
Storage and Handling of ER80S-B2 Filler Rod
Store TIG rods and MIG spools in a clean, dry place, away from moisture. Keep all filler metals in their original packaging so they stay protected from dust, oil, and other contaminants. Do not place them directly on the floor; use clean racks or shelves instead.
When handling TIG rods, clean gloves should always be used to prevent contamination. After welding, any partially used MIG wire spools should be returned to their protective packaging. If any rods are exposed to moisture, re-bake them at 120°C for 1 hour before welding.
Available Forms, Diameters and Packaging of ER80S-B2 Filler Wire
| Form | Diameters | Packaging |
|---|---|---|
| TIG Rod | 1.6, 2.4, 3.2 mm | 1000 mm rods, 5 kg tubes |
| MIG Spool | 0.8, 0.9, 1.0, 1.2 mm | D200, D300 spools |
| SAW Wire | 2.4, 3.2, 4.0 mm | 25 kg coils |
How to Order ER80S-B2 TIG Rod from Nicorex Alloys
- Product Form — TIG Rod / MIG Spool / SAW Wire
- AWS Classification — ER80S-B2 per AWS A5.28
- Diameter — mm or inches
- Quantity — In kg
- Spool Type/Size — D200 (12.5 kg) / D300 (15 kg) / SAW coil (25 kg)
- Matching Consumable Set — ER80S-B2 wire + E8018-B2 electrode + E8XT1-B2 FCAW wire
- Third-Party Approvals — ABS, DNV, Lloyds, Bureau Veritas, TUV, IBR
- Test Certificate — EN 10204 MTC 3.1 / 3.2
- Delivery Destination — Domestic India / Export