Alloy 925 (UNS N09925)
TECHNICAL DATA SHEET
Alloy 925
(UNS N09925) NICKEL ALLOY
Chemical Composition Chemical Composition (wt%) limits as specified in ASTM B446*
Description
Alloy 925 is an age-hardenable nickel-iron-chromium alloy that combines good high strength properties and excellent corrosion resistance. The addition of molybdenum and copper gives the alloy resistance to reducing chemicals, and to pitting and crevice corrosion. The high chromium content provides resistance to oxidizing conditions, while the nickel protects the alloy from chloride ion stress corrosion cracking. The alloy is made age-hardenable by the addition of aluminum and titanium. This alloy is often chosen for liquid and gaseous applications where a combination of high strength and corrosion resistance is required. Alloy 925 provides excellent resistance to corrosion cracking caused by hydrogen sulfide in sour gas applications. Applications include down-hole and above ground components.
Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown herein. © 2015 Double Eagle Alloys Inc. All rights reserved.
Element Carbon Chromium Nickel Iron Molybdenum Titanium Manganese Silicon Copper Niobium Aluminum Sulfur
* Maximum, unless range is indicated
Mechanical Properties Mechanical properties of solution annealed and aged Alloy 925. Solution anneal at 1,800 - 1,900°F for 1 hour. Age harden at 1,365 - 1,380°F. Property Yield Strength, min. (ksi) Tensile Strength, min. (ksi) Elongation, min. (%) Hardness, HRc
Physical properties for 925 Property Density, lb/in3 Modulus of Elasticity, psi Coefficient of Thermal Expansion, 68-212˚F, /˚F Thermal Conductivity, Btu/ft hr ˚F Specific Heat, Btu/lb ˚F Electrical Resistivity, Microhm-in
Typical standards for 925
w w w. d o u b l e e a g l e a l l o y s . c o m
Alloy 925 120 170 25 32
Physical Properties
Standards Double Eagle Alloys 1660 N 168th E Avenue Tulsa, OK 74116 Phone: (918) 254-1100 Fax: (918) 254-1101
Alloy 925 0.03 19.5-22.5 42.0-46.0 22.0 min 2.5-3.5 1.9-2.4 1.0 0.5 1.5-3.0 0.5 0.1-0.5 0.03
925 NACE MRO175
925 Data 0.292 28.9 x 106 7.8 x 10-6 6.4 0.10 46.1
Alloy 925
(UNS N09925) NICKEL ALLOY
Chemical Composition Chemical Composition (wt%) limits as specified in ASTM B446*
Description
Alloy 925 is an age-hardenable nickel-iron-chromium alloy that combines good high strength properties and excellent corrosion resistance. The addition of molybdenum and copper gives the alloy resistance to reducing chemicals, and to pitting and crevice corrosion. The high chromium content provides resistance to oxidizing conditions, while the nickel protects the alloy from chloride ion stress corrosion cracking. The alloy is made age-hardenable by the addition of aluminum and titanium. This alloy is often chosen for liquid and gaseous applications where a combination of high strength and corrosion resistance is required. Alloy 925 provides excellent resistance to corrosion cracking caused by hydrogen sulfide in sour gas applications. Applications include down-hole and above ground components.
Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown herein. © 2015 Double Eagle Alloys Inc. All rights reserved.
Element Carbon Chromium Nickel Iron Molybdenum Titanium Manganese Silicon Copper Niobium Aluminum Sulfur
* Maximum, unless range is indicated
Mechanical Properties Mechanical properties of solution annealed and aged Alloy 925. Solution anneal at 1,800 - 1,900°F for 1 hour. Age harden at 1,365 - 1,380°F. Property Yield Strength, min. (ksi) Tensile Strength, min. (ksi) Elongation, min. (%) Hardness, HRc
Physical properties for 925 Property Density, lb/in3 Modulus of Elasticity, psi Coefficient of Thermal Expansion, 68-212˚F, /˚F Thermal Conductivity, Btu/ft hr ˚F Specific Heat, Btu/lb ˚F Electrical Resistivity, Microhm-in
Typical standards for 925
w w w. d o u b l e e a g l e a l l o y s . c o m
Alloy 925 120 170 25 32
Physical Properties
Standards Double Eagle Alloys 1660 N 168th E Avenue Tulsa, OK 74116 Phone: (918) 254-1100 Fax: (918) 254-1101
Alloy 925 0.03 19.5-22.5 42.0-46.0 22.0 min 2.5-3.5 1.9-2.4 1.0 0.5 1.5-3.0 0.5 0.1-0.5 0.03
925 NACE MRO175
925 Data 0.292 28.9 x 106 7.8 x 10-6 6.4 0.10 46.1
