Alloy 925
Introduction :
Alloy 925 is a precipitation-hardenable nickel-iron-chromium alloy with added copper and molybdenum. It exhibits high strength and excellent resistance to pitting, crevice corrosion, and stress-corrosion cracking in many aqueous environments containing chlorides and sulfides.
Many different industries rely on Alloy 925 for a number of uses including:
- Valves, hangers, packers, and tubulars for sour gas production
- Marine fasteners and pump shafts
Often sold as Inconel® 925, alloy 925, it is known for a number of different unique properties including:
- Protection in rusting and reducing atmosphere
- Resistance to chloride ion stress-corrosion furious
- Outstanding resistance to pitting and crevice corrosion
Chemical Composition of Alloy 925
| Element | Content (%) |
|---|---|
| Nickel, Ni | 44 |
| Iron, Fe | 28 |
| Chromium, Cr | 21 |
| Molybdenum, Mo | 3 |
| Titanium, Ti | 2.1 |
| Copper, Cu | 1.8 |
| Aluminum, Al | 0.3 |
| Carbon, C | 0.01 |
Physical Properties of Alloy 925
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.05 g/cm³ | 0.291 lb/in³ |
| Melting point | 1311-1366°C | 2392-2491°F |
Mechanical Properties of Alloy 925
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (Precipitation-hardened. Value at room temperature) | 1210 MPa | 175000 psi |
| Yield strength (Precipitation-hardened. Value at room temperature) | 810 MPa | 117000 psi |
| Elongation at break (Precipitation-hardened) | 24% | 24% |
Alloy 925 Avaliability
- Alloy 925 Seamless Pipe 1/4″ – 8″
- Alloy 925 Weld Pipe 1/2″ – 24″
- Alloy 925Butt-Weld Fittings 1/2″ – 24″
- Alloy 925 Flanges 1/2″ – 24″
- Alloy 925 Tubing 1/4″ – 1″
- Alloy 925 Valves 1/2″ – 12″
- Alloy 925 Bar 1/8″ – 11″
- Alloy 925 Plate 1/8″ – 3″
Alloy 925 Specifications
ASTM B 805 / ASME SB 805
Alloy 925 Tensile Requirements
- Tensile Strength 650
- Yield Strength 300