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Hastelloy C2000 Bars & Rod Supplier in Mumbai, India - ASTM B574 UNS N06200
Nicorex Alloys is an ISO 9001 / ISO 14001 certified supplier of Hastelloy C2000 round bars based in Mumbai, India. Alloy C-2000 (UNS N06200, Werkstoff 2.4675, EN NiCr23Mo16Cu) is a copper-bearing nickel-chromium-molybdenum alloy manufactured in accordance with ASTM B574 / ASME SB574.
The deliberate 1.6% copper addition is what sets this grade apart from every other Hastelloy. That copper synergises with 16% Mo to deliver a step-change improvement in sulfuric acid resistance at elevated temperatures, while 23% Cr (the highest in the C-family) handles oxidising media. 59% Ni (bal.) provides superior resistance to stress-corrosion cracking, and 3% Fe max. in Hastelloy C2000 round bar. Improves thermal stability and metallurgical purity. Minimum tensile reaches 690 MPa (100 ksi) with 276 MPa yield and 45% elongation in the solution-annealed condition at 1149°C (2100°F). Hastelloy C2000 density is 8.58 g/cm³, the lightest of the C-family (vs C22: 8.69, C276: 8.89). Melting range: 1328-1358°C. Nickel Alloy C2000 bar resists sulfuric, hydrochloric, and hydrofluoric acids in a single alloy. This alloy is engineered for the widest possible range of corrosive environments, including sulfuric, hydrochloric, and hydrofluoric acids in a single alloy.
Diameters span 3-500 mm in lengths to 6000 mm. Forms include round bar, hex bar, flat bar, square bar, rectangular bar, forged bar, hollow bar, and rods. Surface finishes: black, bright, turned, peeled, polished. NACE MR-01-75 / ISO 15156 listed for sour service. Every shipment carries EN 10204 3.1 mill test certificates and PMI reports.
Hastelloy Alloy C2000 Round Bar Specifications
| Specification | ASTM B574 / ASME SB574 |
|---|---|
| Diameter | 3 – 500 mm; Hex 2-100 mm A/F; Square 4-100 mm |
| Length | 100 – 6000 mm (SRL, DRL, cut-to-length) |
| Condition | Solution Annealed at 1149°C (2100°F), rapid quench |
| Surface | Black, Bright, Turned, Peeled, Polished, Ground |
| Hardness | ≤100 HRB (solution annealed) |
| Tolerance | h8-h13, k9-k12 |
| Forms | Round, Hex, Flat, Square, Rectangular, Forged, Hollow |
Chemical Composition of Hastelloy C2000 Bar and Rod
Hastelloy C22 chemical composition as per ASTM B574, UNS N06022 for round bar is covered in the table below:
| Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Copper (Cu) | Iron (Fe) | Cobalt (Co) | Silicon (Si) | Carbon (C) | Sulphur (S) |
|---|---|---|---|---|---|---|---|---|---|
| Content (wt%) | Balance (~59) | 22.0 – 24.0 | 15.0 – 17.0 | 1.3 – 1.9 | 3.0 max | 2.0 max | 0.08 max | 0.01 max | 0.010 max |
Mechanical Properties of ASTM B574 Hastelloy C2000 Round Bars
| Property | Tensile Strength (min) | Yield 0.2% Offset (min) | Elongation (min) | Hardness (max) |
|---|---|---|---|---|
| Value | 690 MPa (100 ksi) | 276 MPa (40 ksi) | 45% | 100 HRB |
Hastelloy C2000 Round Bar Equivalent Grades
| Standard | UNS | Werkstoff Nr. | EN | JIS |
|---|---|---|---|---|
| Designation | N06200 | 2.4675 | NiCr23Mo16Cu | NW 6200 |
Physical Properties of Nickel Alloy C2000 Round Bars
The fundamental physical constants include the density and melting point ranges necessary for accurate thermal and structural analysis.
| Property | Density | Melting Range | Elastic Modulus | Thermal Conductivity (25°C) | Thermal Expansion (25-100°C) | Electrical Resistivity (25°C) |
|---|---|---|---|---|---|---|
| Value | 8.58 | 1328-1358 | 206 | 9.1 | 12.4 × 10⁻⁶ | 1.28 |
| Unit | g/cm³ | °C | GPa | W/m·°C | /°C | µΩ·m |
Hastelloy C2000 Round Bar Weight Calculation
| Dia (mm) | kg/m | Dia (mm) |
|---|---|---|
| 10 | 0.67 | 75 → 37.90 |
| 25 | 4.21 | 100 → 67.37 |
| 50 | 16.84 | 200 → 269.48 |
C2000 is ~3.5% lighter per metre than C276 (8.58 vs 8.89 g/cm³).
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Available Forms of Hastelloy C2000 Bar Stock
Hastelloy C2000 Round Bar
Alloy C2000 Hex Bar
Hastelloy C-2000 Flat Bar
Nickel Alloy C2000 Square Bar
C2000 Forged Round Bar
UNS N06200 Hollow Bar
Hastelloy C2000 Rectangular Bar
Hastelloy C2000 Rod
Machining, Hot Working & Heat Treatment of Hastelloy C2000 Round Bars
Hastelloy C2000 machining is moderate to difficult. Use carbide inserts at 15-25 m/min with positive rake and flood coolant. Hot work from 1232°C (2250°F) down to 954°C (1750°F) with moderate reductions and frequent reheating. Re-anneal after all hot work.
Solution anneal at 1149°C (2100°F), water quench. This is 28°C higher than C276 and C22 (both 1121°C). Hold 10-30 min. Re-anneal after >7% cold work. Weld by GTAW, GMAW, or SMAW using ERNiCrMo-17 (AWS A5.14) matching filler. No preheat required. The copper-bearing weld deposit retains full corrosion resistance.
Industrial Applications of Hastelloy C2000 Round Bars
- Reactor shafts, agitator blades, and pump impellers in H₂SO₄ above 60% concentration, where C276 corrodes rapidly.
- Valve stems, mixer shafts, and reactor internals; the copper addition improves HF resistance.
- Centrifuge shafts and mixing impellers for multi-purpose reactors handling diverse acids.
- Scrubber internals and damper shafts in mixed sulphurous/chloride environments.
- Mixer shafts in bleach plant digesters (ClO₂, hypochlorite).
- Valve stems per NACE MR-01-75 for sour H₂S service.
How to Order Hastelloy C2000 Round Bars from Nicorex Alloys
- Bar Form - Round, Hex, Flat, Square, Forged
- Diameter / Cross-Section Size - Specify mm or inches
- Length - SRL, DRL, cut-to-length
- Quantity - kg, MT, pieces
- Condition - SA, Cold Drawn, As-Forged
- Surface Finish - Black, Bright, Peeled, Ground, Polished
- Tolerance Class - h8, h9, h11, etc.
- Standard - ASTM B574 / ASME SB574
- Testing - MTC 3.1, MTC 3.2, PMI, UT, IGC per ASTM G28, NACE TM0177, TM0284
- TPI - Lloyd's, BV, SGS, DNV
- Packaging - Standard bundles, wooden cases, export-grade
- Delivery Destination - Domestic India / international export
Frequently Asked Questions
What makes Hastelloy C2000 Different from Other C-Type Alloys?
The deliberate copper addition (1.3-1.9%) is the defining feature. No other C-type Hastelloy contains Cu. This copper works with 16% Mo to improve H₂SO₄ and HF resistance while 23% Cr (highest in C-family) handles oxidising media.
Is Hastelloy C2000 Suitable for Sulfuric Acid Service?
Yes. Corrosion rates below 0.1 mm/yr in 20-60% H₂SO₄ at 79°C, far outperforming C276 and C22 under the same conditions. The copper addition provides this improvement.
Can Hastelloy C2000 Bars Handle Hydrofluoric Acid?
What is the Solution Annealing Temperature for C2000 Bar?
1149°C (2100°F) with water quench. This is 28°C higher than C276 and C22 (1121°C). Hold 10-30 min. Re-anneal after >7% cold work.
What Welding Filler is used for Hastelloy C2000 Bar?
ERNiCrMo-17 (AWS A5.14). GTAW preferred. No preheat. The weld deposit retains copper-bearing corrosion resistance.
Is Hastelloy C2000 Approved for NACE Sour Service?
Yes. Listed in NACE MR-01-75 / ISO 15156 for sour gas environments containing H₂S.