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| Inconel 625(NS336 UNSNO6625) | |||
| Chemical Composition % | Ni: ≥58 | Cr: 20-23 | Fe≤5 |
| Mo: 8.0-10 | Mn: ≤0.5 | Cu: ≤0.5 | |
| Al: ≤0.4 | Ti: ≤0.4 | Co: ≤1.0 | |
| Nb+Ta: 3.15-4.15 | C: ≤0.10 | Si: ≤0.5 | |
| P: ≤0.015 | S: ≤0.015 | ||
| Melting Point ℃ | 1290-1350 | ||
| Density g/cm3 | 8.4 | ||
| Executive Standards | ASTM: B443 | AMS: 5599 | |
| Application Area | Organic chemical process components containing fluoride, digesters and bleaching tanks in the pulp and paper industry. Absorption towers, reheaters, sulfuric acid condensers in flue gas desulfurization systems. | ||
Designations: AWS 012
Specifications: AMS 5666 , ASTM B446
Alloy Details
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
| 8.44 g/cm³ | 1350 °C | 12.8 μm/m °C (20 – 100 °C) | 79 kN/mm² | 205.8 kN/mm² |
| 0.305 lb/in³ | 2460 °F | 7.1 x 10-6 in/in °F (70 – 212 °F) | 11458 ksi | 29849 ksi |
Heat treatment of finished parts
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
| Annealed or Spring Temper | Stress Relieve | 260 – 370°C (500 – 700°F) | 0.5 – 1hr | Air |
Properties
| Annealed | ||
| Approx. tensile strength | < 1050 N/mm² | < 152 ksi |
| Approx. operating temperature | -200 to +340 °C | -330 to +645 °F |
| Spring Temper | ||
| Approx. tensile strength | 1300 – 1600 N/mm² | 189 – 232 ksi |
| Approx. operating temperature | up to +200 °C | up to +395 °F |