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HASTELLOY® C-2000® Welding Wire (ERNiCrMo-17) — TIG Filler Rod & MIG Wire Supplier in India
Nicorex Alloys is an ISO 9001 and ISO 14001 certified supplier and stockist of HASTELLOY® C-2000® welding wire in India. We supply ERNiCrMo-17 filler metal as TIG cut lengths, MIG spools, reels, and coils manufactured to AWS A5.14 / ASME SFA-5.14.
Hastelloy C2000 welding wire is a copper-enhanced nickel filler wire that consists of 23% Cr, 16% Mo, and 1.6% Cu in a single solid wire rated to UNS N06200 and Werkstoff Nr. 2.4675. This welding wire can handle both oxidising and reducing acids. The 1.6% copper addition is what separates C-2000 welding wire from every other C-type filler available. Copper lifts sulfuric acid performance across dilute-to-concentrated ranges and adds hydrofluoric acid (HF) resistance, while 23% Cr matches C-22 in oxidising media and 16% Mo matches C-276 in reducing service. ERNiCrMo-17 welds Hastelloy C-2000 base metal to itself and is equally effective for dissimilar joints to C-276, C-22, 625, and austenitic stainless steels. ASME Code Case 2337 covers this filler wire with F-Number F-43.
Every coil and cut length ships from our Mumbai warehouse with full EN 10204/3.1B mill test certification, PMI reports, and complete lot traceability. Key industries these welding wires are used in include chemical processing, sulfuric acid and hydrofluoric acid service, and dissimilar joining & overlay. As a trusted Hastelloy C2000 wire supplier in India, Nicorex Alloys maintains ready stock across standard TIG and MIG diameters for quick dispatch to domestic and export destinations.
Hastelloy C-2000 Welding Wire Specifications
ERNiCrMo-17 welding wire specifications, including classification, process compatibility, and polarity settings, are listed below.
| Parameter | Details |
|---|---|
| AWS Classification | ERNiCrMo-17 |
| UNS Number | N06200 |
| Welding Processes | GTAW, GMAW, SAW, PAW |
| Polarity | GTAW: DCEN GMAW: DCEP |
| Positions | All |
| Shielding Gas | 100% Argon; Ar backing for root |
| Max Interpass Temp | 93°C (200°F) |
| TIG Cut Length | 914 mm (36 in.) |
AWS Classification Explained: ERNiCrMo-17
The “-17” suffix in ERNiCrMo-17 identifies the C-2000 composition. The table below provides a complete breakdown of the full designation:
| Designation Element | Meaning |
|---|---|
| E | Electrode: carries welding current |
| R | Rod: usable as TIG filler rod |
| Ni | Nickel-base alloy |
| Cr | Chromium as primary alloying element |
| Mo | Molybdenum as secondary alloying element |
| -17 | Sequence number: C-2000 chemistry (23Cr-16Mo-1.6Cu) |
Chemical Composition of ERNiCrMo-17 Weld Deposit (%)
The chemical composition of the ERNiCrMo-17 weld deposit per AWS A5.14 is given below. Copper at 1.3–1.9% is the key differentiator. It boosts sulfuric acid resistance in reducing environments without compromising the oxidising protection from 23% Cr.
| Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Copper (Cu) | Iron (Fe) | Carbon (C) | Silicon (Si) | Aluminium (Al) |
|---|---|---|---|---|---|---|---|---|
| Composition (%) | Balance (≈59) | 22.0–24.0 | 15.0–17.0 | 1.3–1.9 | 3.0 max | 0.010 max | 0.08 max | 0.50 max |
The 0.015% C ceiling and ultra-low Si prevent carbide and silicide precipitation in the weld heat-affected zone, keeping the as-welded joint fully corrosion-resistant.
Mechanical Properties of C-2000 Welding Wire
Typical all-weld-metal mechanical properties at room temperature for ERNiCrMo-17 in the as-welded condition are listed below.
| Process | Tensile Strength | Yield Strength (0.2%) | Elongation |
|---|---|---|---|
| GTAW (TIG) | ~758 MPa (110 ksi) | ~380–448 MPa (55–65 ksi) | ~40–50% |
| SMAW (Stick) | ~724 MPa (105 ksi) | ~345–414 MPa (50–60 ksi) | ~35–45% |
Mill-certified weld deposits typically exceed these minimums by 10–15%. C-2000 weld metal is not age-hardenable.
Base Metal Compatibility of Hastelloy C-2000 Welding Wire
The higher Cr + Mo balance positions C-2000 filler metal as a universal joining consumable where the service environment alternates between oxidising and reducing conditions.
| Base Metal | UNS | P-Number | Use |
|---|---|---|---|
| Hastelloy C-2000 (ERNiCrMo-17) | N06200 | P-43 | Primary — like-for-like weld, full compatibility |
| Hastelloy C-2000 | N06200 | P-43 | Primary — like-for-like weld, full compatibility |
| Hastelloy C-276 | N10276 | P-43 | Dissimilar joint, compatible |
| Hastelloy C-22 | N06022 | P-43 | Dissimilar joint, compatible |
| Alloy 625 | N06625 | P-43 | Dissimilar joint, compatible |
| Austenitic Stainless Steel | Various | P-8 | Dissimilar joint, compatible |
ERNiCrMo-17 wire welds C-2000 (P-43) base metal to itself and is fully compatible with dissimilar joints to C-276, C-22, Alloy 625, and austenitic stainless steels. ASTM base metal standards covering UNS N06200 include B574 (rod/bar), B575 (sheet/plate), B619 (welded pipe), B622 (seamless pipe/tube), and B629 (welded fittings).
Welding Parameters of C-2000 Welding Wire
Typical GTAW (TIG) welding parameters for HASTELLOY® C-2000® filler wire (ERNiCrMo-17) are outlined below. These recommended ranges provide general guidance for achieving stable arc performance and consistent weld quality.
| Joint Thickness | Tungsten Dia. | Filler Dia. | Current (A) | Voltage (V) |
|---|---|---|---|---|
| 0.8–1.6 mm | 1.6 mm | 1.6 mm | 15–90 | 9–12 |
| 1.6–3.2 mm | 1.6–2.4 mm | 1.6–2.4 mm | 50–115 | 9–12 |
| 3.2–6.4 mm | 2.4–3.2 mm | 2.4–3.2 mm | 75–150 | 10–13 |
| > 6.4 mm | 2.4–3.2 mm | 2.4–3.2 mm | 95–180 | 10–13 |
No preheat is needed. Interpass temperature must stay at or below 93°C (200°F). Use 100% argon shielding for GTAW. For GMAW, use argon-based mixtures only: 100% Ar, Ar/He, or Ar/He/CO₂ with no more than 2.5% CO₂. Pure CO₂ is not permitted.
Get C-2000 Welding Wire at Competitive Prices
Industrial Applications of Hastelloy C-2000 Welding Wire
The dual oxidising-reducing corrosion profile and copper-enhanced sulfuric acid resistance of C-2000 filler wire serve 4 key application sectors: mixed-acid chemical processing, full-range sulfuric acid service, hydrofluoric acid (HF) environments, and dissimilar joining and overlay work.
- ERNiCrMo-17 handles reactor welds, heat exchanger tubesheet overlays, and column tray joints where acid concentrations shift during batch operations.
- Acid storage tanks, evaporator linings, and pickling line welds benefit directly from ErNiCrMo-17’s copper-driven resistance.
- Copper improves HF resistance beyond what standard Ni-Cr-Mo fillers deliver. HF alkylation units and fluorochemical reactor welds are primary targets for this C-2000 TIG filler rod.
- C-2000 filler wire joins multiple Hastelloy grades (C-276, C-22, C-4) and Mo-bearing stainless steels in a single consumable. Weld overlay cladding on carbon steel vessels is another common use where broad corrosion coverage matters more than matching one specific base alloy.
Available Forms & Packaging
At Nicorex Alloys, we stock Hastelloy C2000 welding wires in the following forms in various diameters and packaging options available.
| Form | Diameter | Packaging |
|---|---|---|
| TIG Cut Lengths | 0.9 – 3.2 mm | 5 kg tubes (914 mm / 36 in. lengths) |
| MIG Spools | 0.9 – 3.2 mm | 15 kg spools |
| Reels | 0.9 – 3.2 mm | Standard reels |
| Bulk Coils | 0.9 – 3.2 mm | Bulk coils |
All packages carry AWS classification, heat number, diameter, and lot traceability. Vacuum-sealed or moisture-barrier packaging available for export shipments.
How to Order Hastelloy C-2000 Welding Wire from Nicorex Alloys
To request a quotation for Hastelloy C-2000 Welding Wire, provide the following details:
- Wire form (TIG rod, MIG spool, reel, coil)
- Diameter (mm or inches)
- Quantity in kg
- Applicable standard (AWS A5.14 / SFA-5.14)
- Any project-specific testing (PMI, NACE MR0175)
- Marking needs
- Packaging preference
- Delivery destination (domestic / export)
Custom diameters and non-standard spool sizes are available on request.
FAQs: Hastelloy C-2000 Welding Wire (ERNiCrMo-17)
What is the Price of Hastelloy C-2000 (ERNiCrMo-17) Welding Wire per kg in India?
C-2000 is a premium specialty filler metal, and pricing fluctuates with nickel, chromium, and molybdenum raw material costs. Contact Nicorex Alloys with your diameter, form, and quantity for a current per-kg quotation delivered to your site.
Why does Hastelloy C-2000 contain Copper (Cu)?
The 1.6% Cu addition boosts reducing-acid resistance, particularly in H₂SO₄ and HF, without compromising the oxidising protection from 23% Cr. No other C-type filler metal carries this deliberate copper addition.
How does ERNiCrMo-17 (C-2000) compare to ERNiCrMo-4 (C-276) and ERNiCrMo-10 (C-22)?
C-2000 combines C-22’s 23% Cr for oxidising media with C-276’s 16% Mo for reducing acids. It also adds 1.6% Cu for sulfuric and HF service. That makes ERNiCrMo-17 the most versatile single filler wire where acid conditions vary.
Is ERNiCrMo-17 Listed in the Main ASME Section II Part C Tables?
ERNiCrMo-17 is covered under ASME Code Case 2337. It’s not yet in the main Section II Part C tables. Verify acceptance with the Authorised Inspector for each specific project before qualifying procedures.
Can ERNiCrMo-17 be Used for Welding C-276 or C-22 Base Metals?
Yes. C-2000 filler wire is compatible with C-276 and C-22 base metals for both matching and dissimilar joints. The combined Cr + Mo balance delivers corrosion performance that is between the two parent alloys.
What Shielding Gas should be used for GMAW with ERNiCrMo-17?
Use argon-based mixtures only, like 100% Ar, Ar/He, or Ar/He/CO₂ with ≤2.5% CO₂. Pure CO₂ is not permitted for any Ni-Cr-Mo alloy wire, as it causes porosity and carbon pickup in the deposit.
Does C-2000 Welding Wire Require PWHT?
No. Similar to C-276 and C-22, no post-weld heat treatment is needed. If full property restoration after heavy forming is required, solution anneal at 1121°C (2050°F) and water quench.
What ASTM Base Metal Standards Apply to Hastelloy C-2000?
Five ASTM standards cover UNS N06200 base metals: B574 (rod/bar), B575 (sheet/plate), B619 (welded pipe), B622 (seamless pipe/tube), and B629 (welded fittings).