Gnee Steel is a company specializing in the production of Hastelloy C276, Nickel 201, Nickel 202, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We are professionally engaged in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs.
Alloy 625 VS Hastelloy C276 Alloy
Alloy 625 VS Hastelloy C276 Alloy
Both Alloy 625 (Inconel 625) and Hastelloy C276 are high-performance nickel-based superalloys, but they have different primary applications. Alloy 625 possesses excellent strength (tensile strength/yield strength) and superior oxidation resistance, making it ideal for marine and aerospace applications. Hastelloy C276, on the other hand, boasts exceptional and unparalleled corrosion resistance, capable of withstanding strong reducing acids and pitting corrosion caused by chlorides, making it the material of choice for demanding chemical processing environments.
What are the equivalent materials for Hastelloy C276?
Equivalent materials for Hastelloy C276
Hastelloy C276 is a corrosion-resistant alloy, and its equivalent materials include UNS N10276, WNR 2.4819, and ASTM B622. These materials exhibit similar resistance to corrosive chemicals and high temperatures.
What is Inconel Alloy 625?
INCONEL 625 nickel-chromium alloy (UNS N06625 / W.Nr. 2.4856) is widely used due to its high strength, excellent processing characteristics (including welding), and outstanding corrosion resistance. Its operating temperature range extends from cryogenic temperatures to 1800°F (982°C).
What is Hastelloy Alloy C-276?
HASTELLOY C-276 alloy (UNS N10276) was the first wrought nickel-chromium-molybdenum alloy to address welding problems by reducing carbon and silicon content. Consequently, it has found widespread use in the chemical and related industries, boasting a successful application history spanning 50 years and demonstrating exceptional performance in numerous corrosive chemical environments.
Inconel Alloy 625 vs Hastelloy Alloy C-276 Chemical Composition
| Element | Inconel 625 Content (%) | Hastelloy C-276 Content (%) |
|---|---|---|
| Nickel | 58.0 min | Balance |
| Chromium | 20.0–23.0 | 14.5–16.5 |
| Iron | 5.0 max | 4.0–7.0 |
| Molybdenum | 8.0–10.0 | 15.0–17.0 |
| Niobium (plus Tantalum) | 3.15–4.15 | - |
| Carbon | 0.10 max | 0.01 max |
| Manganese | 0.50 max | 1.0 max |
| Silicon | 0.50 max | 0.08 max |
| Phosphorus | 0.015 max | 0.04 max |
| Sulfur | 0.015 max | 0.03 max |
| Aluminum | 0.40 max | - |
| Titanium | 0.40 max | - |
| Cobalt | 1.0 max | 2.5 max |
| Tungsten | - | 3.0–4.5 |
| Vanadium | - | 0.35 max |
Mechanical Properties: Alloy 625 VS Hastelloy C276
| Property | Tensile Strength | Yield Strength | Elongation | Density |
|---|---|---|---|---|
| Alloy 625 | ≥827 MPa (120 ksi) | ≥414 MPa (60 ksi) | ≥30% | 8.43g/cm³ |
| Hastelloy C276 | ≥690MPa (100 ksi) | ≥275MPa (40 ksi) | ≥40% | 8.89g/cm³ |
Global Grade Comparison: Alloy 625 vs. Hastelloy C276
| Standard Body | Alloy 625 Designation | Hastelloy C276 Designation |
|---|---|---|
| UNS | N06625 | N10276 |
| EN | 2.4856 | 2.4819 |
| ASTM/ASME | B443, B444, B474, etc. | B575, B574, B619, etc. |
| ISO | 6208 | 15156-3 |
| GB (China) | NS3306 | NS3304 |
Alloy 625 VS Hastelloy C276: Key Differentiators
Q: Corrosion Resistance
A: Alloy 625 possesses broad corrosion resistance and exhibits good tolerance to both oxidizing and reducing acids. Hastelloy C276 has excellent corrosion resistance and performs exceptionally well in corrosive oxidizing and reducing media (including wet chlorine gas).
Q: Strength and Temperature
A: Alloy 625 has higher strength and performs well in the temperature range from low temperatures up to 1000°C. Hastelloy C276 also possesses excellent high-temperature strength and is corrosion-resistant even at extreme temperatures.
Q: Molybdenum and tungsten content
A: Hastelloy C276 contains high levels of molybdenum and tungsten, which significantly improves its resistance to pitting and crevice corrosion. Therefore, C276 offers advantages in some very specific and harsh environments.
Q: Weldability
A: Both materials exhibit good weldability. However, due to its higher alloy content, Hastelloy C276 is slightly more difficult to weld. Proper welding procedures are crucial for both. Low-carbon versions can improve the integrity of the welded structure.
Gnee Steel is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.