Incoloy 925 alloy has similar grades in different countries and regions, as follows:
-US: Incoloy 925, UNS N09925
-China: Not yet
Europe: 2.4859
-Japan: NCF 925
Incoloy 925
Incoloy 925 Alloy Properties
Incoloy 925 is a nickel-iron-chromium alloy with high strength and excellent corrosion resistance, especially suitable for acid-resistant and chloride-resistant environments. The alloy is widely used in the oil and gas industry, marine engineering and pollution control equipment.
Ingredients
|
element |
Content (%) |
|
Nickel (Ni) |
42.0-46.0 |
|
Chromium (Cr) |
19.5-23.5 |
|
Iron (Fe) |
margin |
|
Molybdenum (Mo) |
2.5-3.5 |
|
Copper (Cu) |
1.5-3.0 |
|
Titanium (Ti) |
1.9-2.4 |
|
Aluminum (Al) |
≤ 0.2 |
|
Manganese (Mn) |
≤ 1.0 |
|
Silicon (Si) |
≤ 0.5 |
|
carbon (C) |
≤ 0.03 |
|
Phosphorus (P) |
≤ 0.03 |
|
Sulfur (S) |
≤ 0.03 |
Physical Properties
|
performance index |
value |
|
density |
8.14 g/cm³ |
|
melting point |
1350-1400°C |
|
Coefficient of thermal expansion (20-1000°C) |
13.5 x 10⁻⁶ /°C |
|
thermal conductivity |
10.8 W/(m·K) |
|
modulus of elasticity |
200 GPa |
heat treatment
|
Processing Steps |
Description |
|
solution treatment |
is heated at 980-1040°C and then rapidly cooled to maintain the high strength and corrosion resistance of the alloy. |
machining and welding
·Cold working: suitable for cold drawing and cold rolling, which can increase strength.
·Hot processing: should be carried out between 870-1200°C.
·welding: suitable for TIG and MIG welding, no special heat treatment after welding.
Application
·Oil and gas industry: used in downhole equipment and acid gas processing equipment.
·Offshore engineering: suitable for corrosion-resistant offshore structures and equipment.
·chemical equipment: equipment used in acidic and high temperature corrosive environment.
·pollution control: applicable to waste gas desulfurization equipment and wastewater treatment facilities.
Incoloy 925 alloys are available in different shapes and sizes, including plates, bars, wires and forgings.
