What is the difference between Hastelloy C276 and Hastelloy B2?
Hastelloy B2 and Hastelloy C276 are both excellent alloys, each with unique properties suitable for different applications. Hastelloy B2 excels in resisting corrosion from reducing acids, while Hastelloy C276 exhibits excellent resistance to a wide range of corrosive media.
What is Hastelloy B2?
Hastelloy B2 is a nickel-molybdenum alloy that has excellent resistance to reducing environments such as hydrogen chloride gas as well as sulfuric, acetic and phosphoric acids. Hastelloy B2 is resistant to pure sulfuric acid and a wide range of non-oxidizing acids.
What is the difference between 316L stainless steel and Hastelloy C276?
Both Hastelloy C276 and 316 stainless steel have strong corrosion resistance. However, Hastelloy C276 is more corrosion resistant in high temperature environments, while 316 stainless steel is more corrosion resistant in low temperature environments.
What are the temperature ratings for Hastelloy C276?
The hot working temperature range for Hastelloy C-276 nickel alloy plate is 1600 – 2250°F (870 – 1230°C).
Chemical Composition of Hastelloy B2 vs C276
| Element | Hastelloy C276 (%) | Hastelloy B2 (%) |
| Carbon (C) | ≤0.01 | ≤0.02 |
| Manganese (Mn) | ≤1.00 | ≤1.0 |
| Phosphorus (P) | ≤0.04 | ≤0.040 |
| Sulfur (S) | ≤0.03 | ≤0.030 |
| Silicon (Si) | – | ≤0.10 |
| Chromium (Cr) | 14.5 – 16.5 | ≤1.0 |
| Nickel (Ni) | Remainder (rem) | Balance |
| Molybdenum (Mo) | 15.0 – 17.0 | 26.0 – 30.0 |
| Cobalt (Co) | ≤2.5 | ≤1.0 |
| Iron (Fe) | 4.0 – 7.0 | ≤2.0 |
| Tungsten (W) | 3.0 – 4.5 | – |
| Vanadium (V) | ≤0.35 | – |
Physical Properties of Hastelloy B2 vs C276
Hastelloy B2 has a higher density and fixed melting point, which helps control temperature and improve energy efficiency. C276 is lighter, has a wider melting range and better thermal stability, making it more suitable for high-temperature and weight-sensitive applications such as aerospace.
| Property | Hastelloy B2 | Hastelloy C276 |
| Density (g/cm³) | 9.2 | 8.89 |
| Melting Point (°C) | 1370 | 1350 – 1390 |
Mechanical properties of Hastelloy B2 vs C276
Hastelloy B2 has a higher density and fixed melting point, which helps control temperature and improve energy efficiency. C276 is lighter, has a wider melting range and better thermal stability, making it more suitable for high-temperature and weight-sensitive applications such as aerospace.
| Element | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy B2 | Psi – 110,000 , MPa – 760 | Psi – 51,000 , MPa – 350 | 40% |
| Hastelloy C276 | Psi – 52,000 , MPa – 355 | Psi – 115,000 , MPa – 790 | 40% |
Conclusion
Gnee Steel is a supplier of Hastelloy C276 And Hastelloy B2, 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 C276 And Hastelloy B2 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
