Hastelloy
Hastelloy® is a trademark for a series of high-strength, nickel based, corrosion resistant alloys produced by Haynes International. Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Hastelloy alloys.
FORGING INVENTORY OF NICKEL ALLOYS
- HASTELLOY B2 ®
- HASTELLOY C ®
- HASTELLOY C276 ®
- HASTELLOY N ®
- HASTELLOY S ®
- HASTELLOY W ®
- HASTELLOY X ®
GENERAL PROPERTIES
| Density | 8.89 gm/cm3 |
| Specific Heat: | 427 oC |
| Melting Point Range: | 1325-1370 oC |
| Thermal Conductivity: | 9.8 W/M-k |
| Electrical Resistivity: | 1300 |
| Coefficient of Thermal Expansion: | 11.2 um/M-k |
TYPICAL ANALYSES – Chemical Composition
| Material / Purity (%): | C-276 | C-22 |
| Ni | 57.0 | 56.0 |
| Co | 2.50 | 2.50 |
| Cr | 15.5 | 22.0 |
| Mo | 16.0 | 13.0 |
| W | 4.00 | 3.00 |
| Fe | 5.50 | 3.00 |
| Si | 0.080 | 0.080 |
| Mn | 1.000 | 0.500 |
| P | 0.025 | 0.010 |
| S | 0.010 | 0.020 |
| V | 0.350 | 0.350 |
Hastelloy Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | OR | EN |
|---|---|---|---|---|---|---|---|
| Hastelloy C22 | 2.4602 | N06022 | – | – | NW 6022 | – | NiCr21Mo14W |
| Hastelloy C276 | 2.4819 | N10276 | ХН65МВУ | – | NW 0276 | ЭП760 | NiMo16Cr15W |
| Hastelloy B2 | 2.4617 | N10665 | |||||
| Hastelloy B3 | 2.4600 | N10675 | |||||
| Hastelloy C4 | 2.4610 | N06455 | |||||
| Hastelloy C-22HS | – | N07022 | |||||
| Hastelloy C2000 | 2.4675 | N06200 | |||||
| Hastelloy Hybrid BC1 | 2.4708 | N10362 | |||||
| Hastelloy X | 2.4665 | N06002 |
Hastelloy Melting Point, Density and Tensile Strength
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
|---|---|---|---|---|---|
| C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |
| C276 | 8.89 g/cm33 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40% |
| B2 | 9.2 g/cm3 | 1370 °C (2550 °F) | Psi – 1,15,000 , MPa –760 | Psi – 52,000 , MPa – 350 | 40% |
| B3 | 9.2 g/cm3 | 1370 °C (2550 °F) | Psi – 1,15,000 , MPa –760 | Psi – 52,000 , MPa – 350 | 40% |
| C4 | 8.64 g/cm3 | 1350-1400 °C | 783 | 365 | 55% |
| Hybrid BC1 | 8.83 g/cm³ | 1343 – 1443°C | 725 | 310 | 40% |
| X | 8.22 g/cm³ | 1355°C | 655 MPa | 240 MPa | 35% |
Inconel
Inconel is a family of austenitic nickel-chromium-based superalloys.
Inconel Composition
| Inconel | Element (% by mass) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ni | Cr | Fe | Mo | Nb | Co | Mn | Cu | Al | Ti | Si | C | S | P | B | |
| 600 | 72.0 | 14.0–17.0 | 6.0–10.0 | 1.0 | 0.5 | 0.5 | 0.15 | 0.015 | |||||||
| 617 | 44.2–56.0 | 20.0–24.0 | 3.0 | 8.0–10.0 | 10.0–15.0 | 0.5 | 0.5 | 0.8–1.5 | 0.6 | 0.5 | 0.15 | 0.015 | 0.015 | 0.006 | |
| 625 | 58.0 | 20.0–23.0 | 5.0 | 8.0–10.0 | 3.15–4.15 | 1.0 | 0.5 | 0.4 | 0.4 | 0.5 | 0.1 | 0.015 | 0.015 | ||
| 690 | 59.5 | 30 | 9.2 | 0.35 | 0.01 | 0.02 | 0.35 | 0.019 | 0.003 | ||||||
| 718 | 50.0–55.0 | 17.0–21.0 | balance | 2.8–3.3 | 4.75–5.5 | 1.0 | 0.35 | 0.2–0.8 | 0.65–1.15 | 0.3 | 0.35 | 0.08 | 0.015 | 0.015 | 0.006 |
| X-750 | 70.0 | 14.0–17.0 | 5.0–9.0 | 0.7–1.2 | 1.0 | 1.0 | 0.5 | 0.4–1.0 | 2.25–2.75 | 0.5 | 0.08 | 0.01 | |||
Inconel alloys
Alloys of inconel include:
- Inconel 600: Solid solution strengthened
- Inconel 601
- Inconel 625: Acid resistant, good weldability. The LCF version is typically used in bellows.
- Inconel 690: Low cobalt content for nuclear applications, and low resistivity
- Inconel 713C: Precipitation hardenable nickel-chromium base cast alloy
- Inconel 718: Gamma double prime strengthened with good weldability
- Inconel 751: Increased aluminium content for improved rupture strength in the 1600 °F range
- Inconel 792: Increased aluminium content for improved high temperature corrosion properties, used especially in gas turbines
- Inconel 939: Gamma prime strengthened to increase weldability
Inconel Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 2.4816 | N06600 | МНЖМц 28-2,5-1,5 | NC15FE11M | NCF 600 | NA 13 | NiCr15Fe | ЭИ868 |
| Inconel 601 | 2.4851 | N06601 | XH60BT | NC23FeA | NCF 601 | NA 49 | NiCr23Fe | ЭИ868 |
| Inconel 617 | 2.4663 | N06617 | ||||||
| Inconel 625 | 2.4856 | N06625 | ХН75МБТЮ | NC22DNB4M | NCF 625 | NA 21 | NiCr22Mo9Nb | ЭИ602 |
| Inconel 690 | 2.4642 | N06690 | ||||||
| Inconel 718 | 2.4668 | N07718 | ||||||
| Inconel 725 | – | N07725 | ||||||
| Inconel X-750 | 2.4669 | N07750 |
Inconel Melting Point, Density and Tensile Strength
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
|---|---|---|---|---|---|
| 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
| 601 | 8.1 g/cm3 | 1411 °C (2571 °F) | Psi – 80,000 , MPa – 550 | Psi – 30,000 , MPa – 205 | 30 % |
| 617 | 8.3g/cm³ | 1363°C | ≥ 485 MPa | ≥ 275 MPa | 25 % |
| 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
| 690 | 8.3g/cm³ | 1363°C | ≥ 485 MPa | ≥ 275 MPa | 25 % |
| 718 | 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 70,000 , MPa – 482 | 45 % |
| 725 | 8.31 g/cm3 | 1271°C-1343 °C | 1137 MPa | 827 MPa | 20 % |
| X-750 | 8.28 g/cm3 | 1430°C | 1267 MPa | 868 MPa | 25 % |