Chemical composition
| % | Ni | Cr | Mo | Fe | Co | W | C | Mn | Si | P | S | Al | Cu | La | B |
| min | balance | 14.5 | 14.0 | 0.30 | 0.20 | 0.10 | 0.01 | ||||||||
| max | 17.0 | 16.5 | 3.0 | 2.0 | 1.00 | 0.020 | 1.00 | 0.75 | 0.020 | 0.015 | 0.50 | 0.35 | 0.10 | 0.015 |
Physical properties
| Density | 8.75 g/cm3 |
| Melting range | 1335-1380°C |
Features
Alloy S has excellent thermal stability, low thermal expansion, and outstanding oxidation resistance at 1093℃. It possesses good high-temperature and thermal fatigue strength. The alloy retains its strength and ductility even after aging at temperatures ranging from 427℃ to 871℃. Hastelloy S is particularly suitable for cyclical heating conditions where components must maintain their strength, ductility, and metallurgical integrity after long-term exposure.
Applications
Widely used in industrial furnaces and gas turbine engine seal rings.
We have products:
ASTM B619 Alloy S / UNS N06635 Nickel Alloy Welded Tube; Alloy 556 / UNS R30556 Nickel Alloy Seamless Tube For Boiler; ASTM B622 / ASME SB622 Alloy S / UNS N06625 Nickel Alloy Seamless Tube; ASTM B619 Alloy S / UNS N06635 Nickel Alloy Welded Pipe; ASTM B622 / B619 Alloy G-30 / UNS N06030 Nickel Alloy Pipe; Alloy K500 / UNS N05500 Nickel Alloy Pipe For Oil And Gas Industry; ASTM B622 Alloy X / UNS N06002 Nickel Alloy Seamless Pipe;