HAYNES 282 Welding Wire
HAYNES 282 Welding Wire (ERNiCrCoMo-2) Supplier in Mumbai, India
Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier and stockist of HAYNES 282 welding wire in Mumbai, India. We supply ERNiCrCoMo-2 matching filler wire classified under AWS A5.14 / ASME SFA-5.14, UNS N07208.
HAYNES 282 filler wire is a nickel-chromium-cobalt-molybdenum alloy developed for structural applications that require excellent creep strength and thermal stability at temperatures between 649 °C and 927 °C. The alloy offers a rare combination of high temperature strength, weldability, and fabrication flexibility, making it easier to weld compared with many traditional precipitation-hardened superalloys. ERNiCrCoMo-2 filler metal is highly resistant to strain-age cracking during welding and post-weld heat treatment. After the recommended age-hardening treatment, weld deposits achieve high mechanical strength and maintain stable properties in demanding thermal environments. Because of these properties, HAYNES 282 welding wire is widely used in critical components such as gas turbine combustors, transition ducts and exhaust systems, turbine casings and hot-gas-path structures, aerospace engine components and advanced power generation systems. The alloy is also being adopted in advanced ultra-supercritical (A-USC) power plants and supercritical CO₂ energy systems, where long-term creep resistance and thermal stability are required.
Nicorex Alloys supplies ERNiCrCoMo-2 welding wire for TIG (GTAW) and MIG (GMAW) welding. It is available as filler rods, spools, coils, and reels. All material comes with a 3.1 Mill Test Certificate according to EN 10204, ensuring full traceability and compliance with international standards.
Alloy 282 Welding Wire Specifications
Nicorex Alloys stocks HAYNES 282 filler wire to the following specifications, including UNS Number, welding process, and shielding gas
| AWS Classification | A5.14 ERNiCrCoMo-2 (2018 edition) |
|---|---|
| ASME SFA | SFA-5.14 ERNiCrCoMo-2 |
| UNS Number | N07208 |
| Base Metal AMS | 5951 (sheet/strip), 5915 (bar/forgings) |
| ASTM | B637 (UNS N07208) |
| Welding Processes | GTAW (DCEN), GMAW (DCEP) |
| SMAW | No dedicated electrode: contact Haynes |
| SAW | Not recommended (high heat input + restraint) |
| Shielding Gas | 100% Ar (GTAW); Ar or Ar/He (GMAW) |
| Preheat | Not required (base metal must be >0°C / 32°F) |
Wire diameters range from 0.76 to 4.70 mm (0.030 to 0.187 in). The TIG rods are supplied in standard cut lengths of 914 mm (36 in). Confirm exact diameter availability with Nicorex Alloys.
Chemical Composition of HAYNES 282 Weld Deposit (%)
The chemical composition of HAYNES 282 Weld Deposit, along with its proportion in percentage, is listed in the table below.
| Specification | Nickel (Ni) | Chromium (Cr) | Cobalt (Co) | Molybdenum (Mo) | Titanium (Ti) | Aluminium (Al) | Iron (Fe) | Manganese (Mn) | Silicon (Si) | Carbon (C) | Boron (B) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AWS Requirement | 57.0 min | 18.5–20.5 | 9.0–11.0 | 8.0–9.0 | 1.9–2.3 | 1.38–1.65 | 1.5 max | 0.3 max | 0.15 max | 0.04–0.08 | 0.003–0.010 |
| Typical | 57.0 | 19.5 | 10.0 | 8.5 | 2.1 | 1.5 | 1.5 | 0.3 | 0.15 | 0.06 | 0.005 |
Titanium (2.1%) + Aluminium (1.5%) are the gamma-prime formers. Combined Ti+Al of ~3.6% enables ~19 vol% gamma-prime. Cobalt (10%) raises the gamma-prime solvus and provides solid-solution strengthening. Molybdenum (8.5%) strengthens the matrix and forms M₆C carbides at grain boundaries. Carbon (0.06%) + Boron (0.005%) form carbides and strengthen boundaries against creep cavitation. Low Fe, Si, and Mn prevent TCP phase formation.
Mechanical Properties of HAYNES 282 Weld Deposits
The mechanical properties of HAYNES 282 Weld Deposits in annealed condition and age-hardened condition are listed below.
| Specification | Ultimate Tensile Strength (UTS) | Yield Strength, 0.2% Offset (YS) | Elongation (%) | Hardness |
|---|---|---|---|---|
| As-annealed | ~120 ksi (~827 MPa) | ~55 ksi (~379 MPa) | ~50–60 | ~20 HRC |
| Age-hardened* | ~160 ksi (1103 MPa) | ~101 ksi (696 MPa) | ~30 | ~33–38 HRC |
*Age-hardening: 1010°C (1850°F) / 2 h / AC + 788°C (1450°F) / 8 h / AC
Strength increase from annealed to aged: ~33% in UTS, ~83% in YS. At 649–927°C, age-hardened deposits surpass Waspaloy in creep strength and approach R-41.
Base Metal Compatibility for HAYNES 282 Filler Metal
ERNiCrCoMo-2 filler wire is stocked for the following base metals and dissimilar combinations.
Matching Filler Application
| Base Metal | Application |
|---|---|
| HAYNES 282 (UNS N07208) | Primary matching filler for all thicknesses |
Dissimilar / Repair Applications
| Dissimilar / Repair Application | Notes |
|---|---|
| Repair of other γ′ superalloys | 282 filler can repair Waspaloy, R-41, 263, and similar alloys |
| 282 to solid-solution alloys | Use 230-W, 556, HASTELLOY S, or W filler instead; do not use 282 filler unless full ageing of the assembly is feasible |
| 282 to 718 | Contact Haynes International: different ageing schedules |
If using 282 filler for dissimilar joints, the entire weldment must undergo the 282 age-hardening cycle.
Welding Parameters and Post-Weld Heat Treatment for HAYNES 282 Filler Wire
This table explains recommended welding parameters and preparation practices for reliable welding of HAYNES 282 filler wire.
| Process / Parameter | Recommended Practice | Notes |
|---|---|---|
| Alloy Weldability | Easier to weld than comparable Ni-base superalloys such as Waspaloy and Rene 41 | Slow γ′ precipitation reduces strain-age cracking |
| GTAW / GMAW Polarity & Shielding | TIG: DCEN, 100% Ar; MIG: DCEP, Ar or Ar-He blends | Standard practice; Ar-He improves penetration & arc stability |
| Wire / Electrode | RTW™ finish; no dedicated SMAW 282 electrode | Promotes smooth feeding; consult manufacturer for SMAW |
| SAW Suitability | Not recommended | High heat input increases cracking risk |
| Preheat & Interpass | Preheat not required; interpass ≤ 93 °C (200 °F) | Controls heat accumulation |
| Base Metal Condition | Solution-annealed 1121–1149 °C (2050–2100 °F) | Ensures proper starting microstructure |
| Joint Preparation / Contamination Control | Clean to bare metal; avoid S, Pb, Zn, Cu | Prevents weld contamination and hot cracking |
| Standard Ageing / Heat Treatment | 1010 °C / 2 h → 788 °C / 8 h / air cool | Dissolves γ′ formed during welding and precipitates strengthening Ni₃(Al,Ti) |
| Alternative / A-USC Cycle | 899 °C / 4 h → 788 °C / 8 h (AC) or 802 °C / 8 h AC | Optimised toughness; ASME Code Case 3024 approved |
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Industries and Applications of HAYNES 282 Filler Metal
Nicorex Alloys exports HAYNES 282 welding wire to fabricators in high-performance structural applications.
- Aerospace Gas Turbines: Combustor liners, transition sections, exhaust cases, nozzle components, and structural cases. HAYNES 282 is replacing Waspaloy and R-41 in new turbine structural designs.
- Industrial Gas Turbines: Combustor sections, transition pieces, and hot-gas-path components requiring >100,000 hours creep life with low-cycle fatigue resistance.
- A-USC Power Generation: Boiler tubing, headers, and main steam piping for plants operating above 700°C (1292°F) / >35 MPa.
- Supercritical CO₂ Power Cycles: Turbine and heat exchanger components for sCO₂ Brayton cycle systems in concentrated solar power and waste heat recovery.
- Automotive Turbochargers: High-temperature seals, springs, and wastegate components where 282 outperforms Inconel 718 above 649°C (1200°F).
Storage and Handling of HAYNES 282 Welding Wire
ERNiCrCoMo-2 is a bare (uncoated) nickel alloy filler wire. No re-baking is required. There is no dedicated HAYNES 282 coated electrode.
Store in a clean, dry environment at 15–25°C, <60% RH, in original sealed packaging, away from carbon steel storage and grinding zones. Shelf life is indefinite if the packaging remains sealed. Handle with lint-free gloves and stainless steel tools. If contamination is suspected, clean with acetone or IPA on a lint-free cloth. Replace MIG spool covers after each session.
Available Forms and Packaging of HAYNES 282 Welding Filler Wire
Nicorex Alloys stocks HAYNES 282 matching filler wire in the following product forms and diameters, and provides multiple packaging options.
| Form | Diameter | Packaging |
|---|---|---|
| TIG Cut Lengths (Rods) | 0.76–4.70 mm (0.030–0.187 in) | 914 mm (36 in) standard lengths, sealed tubes |
| MIG Spools | 0.76–1.60 mm (0.030–0.063 in) | Standard spools with RTW™ finish |
| Reels | 0.89–1.60 mm (0.035–0.063 in) | Standard reels |
| Coils | 1.14–4.70 mm (0.045–0.187 in) | Bulk coils |
HAYNES 282 is a newer filler product; diameter availability may be limited. Confirm sizes with Nicorex Alloys. All wire ships with MTC 3.1 per EN 10204.
How to Order HAYNES 282 Welding Wire from Nicorex Alloys
Ordering ERNiCrCoMo-2 requires additional specifications beyond standard solid-solution fillers. Provide the following details:
- Specification — AWS A5.14 ERNiCrCoMo-2; state if ASME Code Case 3024 compliance is required
- Form — TIG rod, MIG spool, reel, or coil
- Diameter — Confirm availability with Nicorex Alloys
- Quantity — In kg or number of tubes/spools; state single-heat requirement if needed
- Heat/Lot Traceability — Required for aerospace and ASME Boiler Code applications
- Testing and Certification — MTC 3.1 per EN 10204 (standard); additional chemical re-verification, mechanical testing, third-party inspection
- Age-Hardening Verification — Specify if aged weld deposit test results are required; state ageing schedule
- Packaging — Sealed tubes/spools; vacuum-sealed or nitrogen-purged if required
- Delivery — Domestic India
Frequently Asked Questions
What makes HAYNES 282 different from Solid-Solution Nickel Alloy Filler Wires?
HAYNES 282 is the only gamma-prime-strengthened filler in the Nicorex range. Solid-solution fillers (230-W, HASTELLOY X, Inconel 625) develop strength from alloying elements dissolved in the nickel matrix and are ready to use as-welded. HAYNES 282 contains Ti (2.1%) and Al (1.5%) that form ordered Ni₃(Al, Ti) precipitates during a mandatory two-step ageing treatment, giving 282 deposits ~30–40% higher strength.
Why does HAYNES 282 have better Weldability than Waspaloy and R-41?
The deliberately low gamma-prime volume fraction (~19% vs Waspaloy ~25% and R-41 ~48%) results in slower precipitation kinetics. R-41 and Waspaloy harden rapidly while residual stresses remain, causing strain-age cracking. HAYNES 282 hardens slowly, allowing stresses to relax.
Is Post-Weld Heat Treatment mandatory for HAYNES 282 Weld Deposits?
Yes, it is mandatory for any structural application. In the as-welded condition, HAYNES 282 has only ~120 ksi UTS. The two-step ageing treatment increases UTS to ~160 ksi and YS to ~101 ksi. For non-structural seal welding where strength is not critical, age-hardening may be omitted.
Can HAYNES 282 Filler Wire be used for SMAW (Stick) Welding?
There is no dedicated HAYNES 282 coated electrode. For SMAW of 282 base metal, users are advised to consult technical support to select the most suitable electrode. GTAW with matching ERNiCrCoMo-2 wire is preferred for critical structural joints.
When should you not use HAYNES 282 Welding Wire?
Do not use 282 filler when post-weld heat treatment is impossible. Do not select it for aqueous corrosion service. SAW is not recommended. HAYNES 282 is a premium superalloy and is not economical where solid-solution alloys provide adequate strength.