Seamless Incoloy 925 Nickel Allloy Steel Pipe Summary
Chemical
|
Nickel (Ni) |
38.0–46.0 |
|
Chromium (Cr) |
19.5–23.5 |
|
Iron (Fe) |
Balance (22.0 min) |
|
Molybdenum (Mo) |
2.5–3.5 |
|
Copper (Cu) |
1.5–3.0 |
|
Titanium (Ti) |
1.9–2.4 |
|
Aluminum (Al) |
0.1–0.5 |
|
Carbon (C) |
0.03 max |
|
Manganese (Mn) |
1.0 max |
|
Silicon (Si) |
0.5 max |
|
Phosphorus (P) |
0.03 max |
|
Sulfur (S) |
0.03 max |
Mechanical
|
Tensile Strength |
965 MPa (140 ksi) min |
|
Yield Strength (0.2% offset) |
724 MPa (105 ksi) min |
|
Elongation |
25% min |
|
Hardness (Rockwell C) |
38 max |
|
Density |
8.08 g/cm³ |
|
Melting Point |
1311–1366°C (2392–2491°F) |
Applications
- Oil and Gas: Downhole tubing, casing, and completion equipment in sour gas wells (NACE MR0175/ISO 15156 compliant).
- Marine: Piping, valves, and fittings exposed to seawater.
- Chemical Processing: Piping systems for corrosive fluids, heat exchangers.
- Aerospace: High-strength, corrosion-resistant components.
Additional Notes
- Heat Treatment: Solution annealing at 980–1010°C, followed by age-hardening at 732–760°C, maximizes strength and corrosion resistance.
- Standards Compliance: Meets NACE MR0175/ISO 15156 for sour service in oil and gas.
- Fabrication: Can be welded with matching Incoloy 925 filler metals; post-weld heat treatment may be required to restore properties.
