Alloy S has excellent thermal stability, low thermal expansion and excellent oxidation resistance at 1093ºC. It has good high temperature and thermal fatigue strength. It retains its strength and ductility after aging at temperatures of 427 to 871ºC. Alloy S is particularly suitable for cyclical heating conditions where components must be capable of retaining their strength, ductility and metallurgical integrity after long time exposure.CHEMICAL COMPOSITION
| % | C | Mn | Fe | P | S | Si | Cu | Ni | Co | Al | Ti | Cr | Mo | W | V | Nb |
| Hastelloy B | ≤0.05 | ≤1.0 | 4.0-6.0 | ≤0.04 | ≤0.03 | ≤1.0 | - | balance | ≤2.5 | - | - | ≤1.0 | 26.0-30.0 | - | 0.2-0.4 | - |
| Hastelloy B-2 | ≤0.01 | ≤1.0 | ≤2.0 | ≤0.02 | ≤0.03 | ≤0.01 | - | balance | ≤1.0 | - | - | 0.04-0.07 | 26.0-30.0 | - | - | - |
| Hastelloy C | ≤0.08 | ≤1.0 | 4.0-7.0 | ≤0.04 | ≤0.03 | ≤1.0 | - | 50.0-58.0 | - | - | 14.5-16.5 | 15.0-17.0 | - | - | - | |
| Hastelloy C-4 | ≤0.015 | ≤1.0 | ≤3.0 | ≤0.04 | ≤0.03 | ≤0.08 | - | balance | ≤2.0 | - | ≤0.7 | 14.0-18.0 | 14.0-17.0 | - | - | - |
| Hastelloy C-22 | ≤0.015 | ≤0.5 | 2.0-6.0 | ≤0.02 | ≤0.35 | ≤0.08 | - | balance | ≤2.5 | - | - | 20.0-22.5 | 12.5-14.5 | 2.5-3.5 | 0.02 | - |
| Hastelloy C-276 | ≤0.08 | ≤1.0 | 4.0-7.0 | ≤0.04 | ≤0.03 | ≤1.0 | - | balance | ≤2.5 | - | - | 14.5-16.5 | 15.0-17.0 | 3.0-4.5 | ≤0.35 | - |
| Hastelloy C-2000 | ≤0.01 | ≤0.5 | ≤3.0 | ≤0.025 | ≤0.01 | ≤0.08 | 1.3-1.9 | balance | ≤2.0 | ≤0.5 | - | 22.0-24.0 | 15.0-17.0 | - | - | - |
| Hastelloy G-30 | ≤0.03 | 0.3-1.5 | 13.0-17.0 | ≤0.04 | ≤0.02 | 0.2-0.8 | 1.0-2.4 | balance | ≤5.0 | - | - | 28.0-31.5 | 4.0-6.0 | 1.5-4.0 | - | 0.3-1.5 |
| Hastelloy G-35 | ≤0.05 | ≤0.5 | ≤2.0 | ≤0.03 | ≤0.015 | ≤0.6 | ≤0.30 | balance | ≤1.0 | ≤0.4 | - | 32.25-34.25 | 7.6-9.0 | ≤0.6 | ≤0.2 | - |
| Hastelloy X | 0.05-0.15 | ≤1.0 | 17.0-20.0 | ≤0.04 | ≤0.03 | ≤1.0 | - | balance | 0.5-2.5 | - | - | 20.5-23.0 | 8.0-10.0 | 0.2-1.0 | - | - |
| Hastelloy S | ≤0.02 | 0.3-1.0 | ≤3.0 | ≤0.02 | ≤0.015 | 0.2-0.75 | - | balance | ≤2.0 | 0.1-0.5 | - | 14.5-17.0 | 14.0-16.5 | ≤1.0 | - | - |
PHYSICAL PROPERTIES
| Alloy | Tensile Strength | Yield Strength | Rate of Elongation |
| Rm N/mm2 | RP0.2N/mm2 | A5% | |
| Hastelloy B | ≥760 | ≥350 | ≥40 |
| Hastelloy B-2 | ≥760 | ≥350 | ≥40 |
| Hastelloy C | ≥690 | ≥310 | ≥40 |
| Hastelloy C-4 | ≥690 | ≥276 | ≥40 |
| Hastelloy C-22 | ≥690 | ≥310 | ≥45 |
| Hastelloy C-276 | ≥690 | ≥283 | ≥40 |
| Hastelloy C-2000 | ≥690 | ≥283 | ≥45 |
| Hastelloy G-30 | ≥586 | ≥241 | ≥30 |
| Hastelloy X | ≥586 | ≥241 | ≥30 |
| Hastelloy S | ≥110 | ≥52 | ≥46 |

















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