Hastelloy C2000 and C276 Alloy
What is the difference between Hastelloy C2000 and C276?
C276 is highly specialized for environments requiring resistance to mixed acids and chlorides. C2000 has copper added for improved performance in sulfuric acid environments but with slightly reduced versatility.
What is C276 used for?
C-276 alloy is used in many industries, including chemical and petrochemical processing, oil and gas, power generation, pharmaceuticals, pulp and paper, and wastewater treatment.


What is Hastelloy C2000?
HASTELLOY C-2000 alloy belongs to the category of highly corrosion-resistant nickel-chromium-molybdenum alloys. One of the characteristics of this material is that the copper content is low but effective without reducing its thermal microstructural stability.
What is the difference between Hastelloy C276 and Monel 400?
While Monel 400 alloy relies primarily on the addition of copper to its composition, Hastelloy C276 alloy has additions of molybdenum, chromium, and tungsten, which provide greater solid solution strengthening, resulting in higher tensile strength.
C276 Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Chromium (Cr) | 14.5 – 16.5 |
| Iron (Fe) | 4.0 – 7.0 |
| Tungsten (W) | 3.0 – 4.5 |
| Cobalt (Co) | ≤ 2.5 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.08 |
| Carbon (C) | ≤ 0.01 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
C2000 Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 22.0 – 24.5 |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Copper (Cu) | 1.3 – 1.9 |
| Iron (Fe) | 3.0 – 6.0 |
| Cobalt (Co) | ≤ 2.5 |
| Tungsten (W) | ≤ 3.0 |
| Carbon (C) | ≤ 0.01 |
| Manganese (Mn) | ≤ 0.5 |
| Silicon (Si) | ≤ 0.08 |
| Phosphorus (P) | ≤ 0.02 |
| Sulfur (S) | ≤ 0.02 |
Hastelloy C2000 vs C276: What's the Difference?
Hastelloy C2000 vs C276: Composition
The composition of Hastelloy C2000 and C276 is where the difference between them lies. Hastelloy C2000 is an alloy with a higher molybdenum content, which makes it resistant to pitting and crevice corrosion in chloride-containing environments. It also contains chromium, iron, and tungsten, which also enhance its overall corrosion resistance.
On the other hand, Hastelloy C276 has a higher chromium content than C2000, while also containing molybdenum, nickel, and iron. The addition of tungsten and cobalt further enhances its corrosion resistance, especially in aggressive media such as sulfuric acid.
Hastelloy C2000 vs C276: Mechanical Properties
From a mechanical properties perspective, Hastelloy C2000 and C276 exhibit different characteristics. Hastelloy C2000 has good strength and ductility, making it suitable for applications that require high corrosion resistance and mechanical integrity. It also has good weldability and can be easily processed into complex shapes.
On the other hand, Hastelloy C276 is stronger and more ductile than C2000, making it a better choice for applications that require high strength and corrosion resistance. It also has excellent fatigue resistance, making it suitable for dynamic loading conditions.
Gnee Steel is a supplier of Hastelloy C2000 And C276, covering tubes: Seamless tubes: Size: 4 - 219 mm; Thickness: 0.5 - 20 mm; Welded tubes: Size: 5.0 - 1219.2 mm; Thickness: 0.5 - 20 mm, Plates: Plate thickness 0.1 to 100 mm; Plate width 10-2500 mm, Strips, Alloy round bar sizes: diameter 3-800 mm;, Flat bar sizes: thickness 2-100 mm; Width: 10-500 mm, Hexagonal bar sizes: 2-100 mm;, Wire and extruded profiles. We work with steel mills to provide customers with 625 alloy, and its products meet or exceed many leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS standards.
Gnee Steel stocks and sells Hastelloy C2000 And C276 pipes, tubes, sheets, strips, plates, round bars, flat bars, forged billets, hexagons, wires and extruded profiles. You are welcome to contact us for a quote at any time at ss@gneesteel.com





