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Alloy C2000 (UNS N06200, NiCr23Mo16Cu) is a premium nickel-chromium-molybdenum-copper alloy developed for diversified corrosive working conditions. Blended with multiple alloying elements, it delivers outstanding overall corrosion resistance. Meanwhile, this grade features dependable mechanical strength, ductility and fabrication properties. It is commonly fabricated into pipes, pipe fittings, heat exchangers, pressure vessels and other components, and widely used in chemical, petrochemical, pharmaceutical, environmental protection and other industrial sectors.
Chemical Composition of Alloy C2000
The superior performance of Alloy C2000 (UNS N06200, NiCr23Mo16Cu) benefits from the synergistic effect of its alloying elements. High chromium content forms a dense protective film on the material surface to resist oxidation corrosion. Molybdenum effectively improves resistance to localized corrosion such as pitting and crevice corrosion, while copper further enhances its stability in reducing acid solutions. Thanks to these metallic elements, Alloy C2000 offers strong resistance to both oxidizing and reducing corrosive media, and maintains stable performance in various complex chemical environments.
| Alloy (UNS) | Ni | Cr | Mo | W | Cu | Fe | Carbon |
| C2000® (N06200) | Bal | 22.00-24.00 | 15.00-17.00 | – | 1.30-1.90 | 3.00 max. | 0.010max. |
Hastelloy C2000 Mechanical Properties
| Property | Value |
| Tensile Strength,ksi (MPa) | 100 (690) min |
| Yield Strength (0.2% offset),ksi (MPa) | 45 (310) min |
| Elongation (% in 2 inches) | 40 min |
| Hardness,Rockwell C (HRC) | 28 max |
| Properties | ||||
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm2 | ksi | °C | °F | |
| Annealed | 700 – 1000 | 102 – 145 | -200 to +400 | -330 to +750 |
| Spring Temper | 1300 – 1600 | 189 – 232 | -200 to +400 | -330 to +750 |
Weldability
Alloy C2000 (UNS N06200, NiCr23Mo16Cu) has excellent weldability. It can be easily welded by conventional processes including SMAW, GTAW and GMAW, and it is also easy to cut.
| Heat Treatment of Finished Parts | ||||||
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | ||
| °C | °F | |||||
| Annealed or Spring Temper | Stress Relieve | 400 – 450 | 750 – 840 | 2 | Air | |
Forming Process
It boasts excellent cold formability and can be processed through bending, stamping, rolling and other operations. The recommended temperature range for hot forming is 950–1150°C. Avoid working within the critical intermediate temperature zone to keep the original material properties intact.
UNS N06200 Physical Properties
| Physical Property | Customary Units | Metric Units | ||
| Density | RT | 0.307 lb/in3 | RT | 8.50 g/cm3 |
| Electrical Resistivity | RT | 50.6 μohm.in | RT | 1.28 μohm.m |
| 200°F | 50.8 μohm.in | 100°C | 1.29 μohm.m | |
| 400°F | 51.2 μohm.in | 200°C | 1.30 μohm.m | |
| 600°F | 51.6 μohm.in | 300°C | 1.31 μohm.m | |
| 800°F | 52.2 μohm.in | 400°C | 1.32 μohm.m | |
| 1000°F | 52.9 μohm.in | 500°C | 1.34 μohm.m | |
| 1200°F | 53.0 μohm.in | 600°C | 1.35 μohm.m | |
| Thermal Conductivity | RT | 63 Btu.in/h.ft2°F | RT | 9.1 W/m.°C |
| 200°F | 74 Btu.in/h.ft2°F | 100°C | 10.8 W/m.°C | |
| 400°F | 88 Btu.in/h.ft2°F | 200°C | 12.6 W/m.°C | |
| 600°F | 99 Btu.in/h.ft2°F | 300°C | 14.1 W/m.°C | |
| 800°F | 114 Btu.in/h.ft2°F | 400°C | 16.1 W/m.°C | |
| 1000°F | 133 Btu.in/h.ft2°F | 500°C | 18.0 W/m.°C | |
| 1200°F | 162 Btu.in/h.ft2°F | 600°C | 21.6 W/m.°C | |
| Mean Coefficient of Thermal Expansion | 77-200°F | 6.9 μin/in.°F | 25-100°C | 12.4 μm/m.°C |
| 77-400°F | 6.9 μin/in.°F | 25-200°C | 12.4 μm/m.°C | |
| 77-600°F | 7.0 μin/in.°F | 25-300°C | 12.6 μm/m.°C | |
| 77-800°F | 7.2 μin/in.°F | 25-400°C | 12.9 μm/m.°C | |
| 77-1000°F | 7.4 μin/in.°F | 25-500°C | 13.2 μm/m.°C | |
| 77-1200°F | 7.6 μin/in.°F | 25-600°C | 13.3 μm/m.°C | |
| Thermal Diffusivity | RT | 0.10 ft2/h | RT | 0.025 cm2/s |
| 200°F | 0.11 ft2/h | 100°C | 0.029 cm2/s | |
| 400°F | 0.13 ft2/h | 200°C | 0.033 cm2/s | |
| 600°F | 0.14 ft2/h | 300°C | 0.036 cm2/s | |
| 800°F | 0.16 ft2/h | 400°C | 0.040 cm2/s | |
| 1000°F | 0.17 ft2/h | 500°C | 0.043 cm2/s | |
| 1200°F | 0.19 ft2/h | 600°C | 0.047 cm2/s | |
| Specific Heat | RT | 0.102 Btu/lb.°F | RT | 428 J/kg.°C |
| 200°F | 0.104 Btu/lb.°F | 100°C | 434 J/kg.°C | |
| 400°F | 0.106 Btu/lb.°F | 200°C | 443 J/kg.°C | |
| 600°F | 0.109 Btu/lb.°F | 300°C | 455 J/kg.°C | |
| 800°F | 0.113 Btu/lb.°F | 400°C | 468 J/kg.°C | |
| 1000°F | 0.121 Btu/lb.°F | 500°C | 486 J/kg.°C | |
| Dynamic Modulus of Elasticity | RT | 30.0 x 106psi | RT | 207 GPa |
| 600°F | 27.5 x 106psi | 300°C | 191 GPa | |
| 800°F | 25.6 x 106psi | 400°C | 180 GPa | |
| 1000°F | 24.8 x 106psi | 500°C | 173 GPa | |
| 1200°F | 23.5 x 106psi | 600°C | 166 GPa | |
| Melting Range | 2422-2476°F | – | 1328-1358°C | – |
In standard solution annealed condition, Alloy C2000 (UNS N06200, NiCr23Mo16Cu) possesses good tensile strength, yield strength and elongation. It maintains stable structure at room temperature and is suitable for long-term service in corrosive environments.
Typical Applications
With excellent comprehensive corrosion resistance, Alloy C2000 UNS N06200 is mainly applied in the following fields:
- Chemical Processing: Reaction vessels, heat exchangers and piping systems for conveying acids, chlorides and other corrosive chemicals.
- Oil and Gas: Equipment deployed in sour gas environments containing hydrogen sulfide and other corrosive gases.
- Pharmaceutical: Drug processing equipment capable of withstanding harsh chemical substances.
- Pulp and Paper: Components used in bleach plants and digesters exposed to severe chemical conditions.
If you are looking for corrosion-resistant materials for mixed acids, chloride media and complex chemical corrosive environments, Alloy C2000 (UNS N06200, NiCr23Mo16Cu) is your ideal solution. C&N supplies Alloy C2000 pipes, fittings, forgings and fasteners in full specifications. Feel free to contact us for inquiries.
