Nickel and nickel alloys · Alloy C-2000 / Hastelloy C-2000 / N06200
Hastelloy C-2000 Alloy (UNS N06200): Engineering Specifications and Corrosion Resistance
Engineering Technical Review of Hastelloy C-2000 Alloy
Hastelloy C-2000 (Alloy C-2000) nickel alloy, classified as UNS N06200, is a universal corrosion-resistant material designed for operation in the most aggressive industrial environments. Its uniqueness lies in the balanced alloying with chromium, molybdenum, and the targeted addition of copper. Engineers and technologists at EV Group China confirm that it is precisely the introduction of copper into the composition (about 1.6%) that significantly expands the alloy's passivity in sulfuric acid across a wide range of concentrations and temperatures, which is a key advantage over other C-type alloys.
The material demonstrates excellent resistance to both oxidizing media, which is ensured by its high chromium content (up to 24%), and reducing media, where its effectiveness is achieved through the synergy of molybdenum and copper. This dual nature makes components made from Hastelloy C-2000 an optimal solution for multi-purpose chemical equipment where process conditions can change from oxidizing to reducing, ensuring the stability and longevity of the production cycle.
Key Areas of Application and Operation
In EV Group China's engineering practice, UNS N06200 alloy is recommended for the manufacture of critical components and apparatus operating in direct contact with aggressive chemical reagents. The main areas of application include:
- Process cycles for the production and concentration of mineral acids (H₂SO₄, H₃PO₄, HF).
- Apparatus for chloro-organic synthesis, polymerization, and the production of pharmaceutical substances.
- Heat exchangers operating in chloride-containing media, including seawater and industrial brines.
- Flue gas desulfurization (FGD) systems and equipment for the disposal of toxic industrial waste.
| Type of rolled product | Marking and Standards | Specifications | European Analog | |
|---|---|---|---|---|
| Round bar, wire, rod, flat bar, shaped profile, wire ropes | Alloy C-2000, Hastelloy C-2000, UNS N06200, DIN 2.4675 | ASTM | ASME | W.Nr. |
| Round bar, wire, rod, flat bar, shaped profile, wire ropes | Alloy C-2000, Hastelloy C-2000, UNS N06200, DIN 2.4675 | B 574, B 575, B 619 | SB 574, SB 575, SB 619 | 2.4675 |
Chemical Composition of Hastelloy C-2000 (%)
| Co | <2.0 |
|---|---|
| Cr | 22.0-24.0 |
| Cu | 1.3-1.9 |
| Fe | <3.0 |
| Mn | <0.5 |
| Mo | 15.0-17.0 |
| Ni | 59.0 |
| Si | <0.08 |
| P | <0.025 |
| S | <0.010 |
| Al | <0.50 |
Mechanical Characteristics of Alloy C-2000
| Supply Condition | Annealed | Spring temper |
|---|---|---|
| Tensile strength, N/mm² | <1000 | 1300-1600 |
| Operating temperature range, °C | from -200 to +400 | from -200 to +400 |
Physico-Mechanical and Thermal Constants
The material density is 8.5 g/cm³. High thermal stability of the structure and a predictable coefficient of linear expansion ensure the reliability of structures under cyclic thermal loads and in cryogenic applications.
| Melting Point | Coefficient of Linear Thermal Expansion (20–100 °C) | Shear Modulus | Elastic Modulus (Young's) |
|---|---|---|---|
| 1399 °C | 12.4 µm/m°C | 79 kN/mm² | 206 kN/mm² |