Wire – INCOLOY® 925 Alloy

Wire – INCOLOY® 925 Alloy

INCOLOY® 925 Alloy

UNS N09925


Well components, Tubing, Valves, Hangers, Tool joints, Marine/Pump shafts, High-strength pipe.


INCOLOY® 925 is an age-hardenable nickel-iron-chromium alloy that has excellent corrosion resistance as well as good high strength properties. Alloying additions of molybdenum, copper, titanium, and aluminum provide resistance to pitting/crevice corrosion, chloride induced stress corrosion cracking, oxidizing environments, and reducing chemicals. The additions also allow age-hardening of the material via heat treatment for increased strength.

Industries Supplied

Oil & Gas, Chemical Processing

Nominal Composition

C: 0.03 max
Mn: 1.0 max
S: 0.03 max
Si: 0.5 max
Ni: 42.0 – 46.00
Cr: 19.5 – 22.5
Mo: 2.5 – 3.5
Ti: 1.9 – 2.4
Cu: 1.5 – 3.0
Al: 0.1 – 0.5
Nb (Cb): 0.5 max
Fe: 22 Bal min

Physical Properties

Density: 0.292 lb/in3, (8.08 g/cm3)

Modulus of Elasticity (E):
At 70°F (20°C): 28.9 x 103 ksi (199 GPa)

Modulus of Rigidity (G):
At 70°F (20°C): 11.2 x 103 ksi (77 GPa)

Coefficient of Expansion:
9.0 µin/in-°F (70-1200°F)
15.7 µm/m-°C (20-700°C)

Electrical Resistivity: 46.1 µohm-in, (117.0 µohm-cm)

Thermal Conductivity: 83.1 Btu-in/ft2-hr-°F, 12.0 W/m-°C

Applicable Specifications

Wire & Bar: ASTM B637, NACE MR0175/ISO 15156, NACE MR0103

Typical Mechanical Properties

  • Annealed
    • Heat Treatment: 1700-1975°F (930-1080°C)
    • Tensile Strength: 85-105 ksi (586-724 MPa)
    • Suggested Operating Conditions: Up to 1100°F (538°C)
  • Aged
    • Heat Treatment: 1350-1380°F (732-749°C) 6-9 hours
      FC to 1150°F (621°C) hold for total aging time of 18 hrs
    • Tensile Strength: 140 ksi min (965 MPa)
    • Suggested Operating Conditions: Up to 1100°F (538°C)

INCOLOY® is a registered trademark of Special Metals Corporation group of companies.

For further information Contact:

Contact Us
Phone: 1 847 695 1900
Elgiloy Specialty Metals – Wire Products
356 N.Cross Street
Sycamore, IL 60178 USA

Limitation of Liability and Disclaimer of Warranty:
• The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
• Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, does not recommend or endorse any material for any particular end use or application.
• The data included in this data sheet are typical values and may vary.
• Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
• In no event will Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.