UNS N09925 Nickel-base Alloy Bar Strength Composition

UNS N09925 alloy is an age-hardenable nickel-iron-chromium alloy. On the basis of nickel-iron-chromium, molybdenum and copper elements are added to strengthen the alloy, which improves the strength and corrosion resistance of the material. The specific chemical composition is as follows. UNS N09925 nickel content is sufficient to prevent chloride ion stress corrosion cracking, molybdenum and copper are added to provide good reduction resistance properties to the alloy, molybdenum helps resistance to pitting and crevice corrosion, and chromium content provides sufficient oxidation resistance.

UNS N09925 corresponding grades: 0Cr22Ni42Mo3Cu2Ti2AlNb, Incoloy925, Alloy925, Nicrofer4320Ti, W.Nr.2.4852

Chemical composition of UNS N09925:

C: ≤0.03

Si: ≤0.5

Mn: ≤1.0

P: ≤0.03

S: ≤0.03

Mo: 2.5-3.5

Ni: 42.0-46.0

Cr: 19.5-23.5

Cu: 1.5-3.0

Fe: margin

UNS N09925 physical properties:

Density: 8.14g/cm3

Melting point: 1343°C

UNS N09925 is a high-temperature and corrosion-resistant nickel-based alloy, which has the ability to resist sulfide stress cracking and stress corrosion cracking in sour crude oil and natural gas, and also has the ability to resist oxidation, hydrogen bubble corrosion, crevice corrosion, and intergranular corrosion specialty. It is mainly used in corrosion-resistant environments such as oil, natural gas, and marine industries. It is suitable for ship fasteners and pipelines, etc., and has high thermal strength.