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Nickel Alloy Powder
Incoloy 925 alloy/UNS N09925/W.Nr.2.4858 Tube Bar Sheet Strip
Overview
INCOLOY alloy 925 (UNS N09925) is an agehardenable nickel-iron-chromium alloy with additions of molybdenum, copper, titanium and aluminum. The alloy’s chemical composition is designed to provide a combination of high strength and excellent corrosion resistance. The nickel content is sufficient for protection against chloride-ion stresscorrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing chemicals. The molybdenum aids resistance to pitting and crevice corrosion. The alloy’s chromium content provides resistance to oxidizing environments. The titanium and aluminum additions cause a strengthening reaction during heat treatment.
Limiting Chemical Composition, %
Nickel..................................................................................................................................................................................42.00-46.00
Chromium...........................................................................................................................................................................19.50-22.50
Iron.........................................................................................................................................................................................22.00 min.
Molybdenum...........................................................................................................................................................................2.50-3.50
Copper.....................................................................................................................................................................................1.50-3.00
Titanium..................................................................................................................................................................................1.90-2.40
Aluminum................................................................................................................................................................................0.10-0.50
Manganese.............................................................................................................................................................................1.00 max.
Silicon......................................................................................................................................................................................0.50 max.
Niobium...................................................................................................................................................................................0.50 max.
Carbon.....................................................................................................................................................................................0.03 max.
Sulfur........................................................................................................................................................................................0.03 max.
Physical Constants
Density |
lb/in^3...........................................................................................0.292 |
g/cm^3...........................................................................................8.08 | |
Melting Range |
°F..........................................................................................2392-2490 |
°C.........................................................................................1311-1366 | |
Electrical Resistivity |
µΩ•cm............................................................................................1.17 |
ohm/circ•mil•ft...............................................................................701 | |
Permeability at 200 oersteds (15.9 kA/m) |
......................................................................................................1.001 |
Mechanical properties
Alloy state |
Tensile strength(Rm N/mm2) |
Yield strength(RP0.2 N/mm2) |
Elongation A5% |
Solid solution |
650 |
300 |
30 |
Corrosion Resistance
INCOLOY alloy 925 has a high level of corrosion resistance. In both reducing and oxidizing environments, the alloy resists general corrosion, pitting, crevice corrosion, intergranular corrosion and stress-corrosion cracking. Some environments in which INCOLOY alloy 925 is particularly useful are “sour” (H2S containing) crude oil and natural gas, sulfuric acid, phosphoric acid, and seawater.
Hot and Cold Forming
The hot working range for the alloy is 1600 to 2150°F (870 to 1175°C). At temperatures up to 2000°F (1095°C), INCOLOY alloy 925 has hot-working characteristics similar to those of INCOLOY alloy 825. For maximum corrosion resistance and highest strength after direct aging, final hot working should be done in the 1600 to 1800°F (870 to 980°C) range.
The cold-forming behavior of INCOLOY alloy 925 is similar to that of INCOLOY alloy 825 except that alloy 925 has a higher work-hardening rate.
Avaliable Forms
We provide you with a variety of product forms, including but not limited to
● Bar & Rod
● Pipe & Tube
● Coil & Strip
● Plate & Sheet/Circle
● Wire & Welding
● Fitting (Flange, Bolts, Elbow, Tee...)
● Customize
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