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INCOLOY® Alloy 925
UNS N09925; NACE MR-01-75
Component

   Wt. %

Al

0.3

C

0.01

Cr

21

Cu

1.8

Fe

28

Mo

3

Ni

44

Ti

2.1

Material Notes:
A precipitation-hardenable nickel-iron-chromium alloy with additions of molybdenum and copper. It combines the high strength of a precipitation-hardenable alloy with the excellent corrosion resistance of INCOLOY alloy 825. The alloy has outstanding resistance to general corrosion, pitting, crevice corrosion, and stress-corrosion cracking in many aqueous environments including those containing sulfides and chlorides. Used for surface and down-hole hardware in sour gas wells and for oil-production equipment.
 
Physical Properties

Metric

English

Comments

Density

8.05 g/cc

0.291 lb/in³

 


Mechanical Properties

Tensile Strength, Ultimate

1210 MPa

175000 psi

 Precipitation Hardened. Value at room temperature. Value at 550°C is 970 MPa.

Tensile Strength, Yield

810 MPa

117000 psi

 Precipitation Hardened. Value at room temperature; 0.2% offset. Value at 550°C is 700 MPa.

Elongation at Break

24 %

24 %

 Precipitation Hardened. Value at room temperature. Value at 550°C is 25%.

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