Complete specifications for Inconel 925, an age-hardenable nickel-iron-chromium superalloy with exceptional strength and corrosion resistance for sour gas service.
Alloy 925 is a nickel based alloy containing iron and chromium as major additions, and also additions of molybdenum, copper, titanium and aluminum. A combination of high strength and corrosion resistance make it suitable for applications such as valves, hangers, packers, and tubulars in sour gas environments.
The combination of nickel and chromium renders protection in both oxidizing and reducing atmospheres. The high nickel content gives resistance to chloride ion stress corrosion cracking. Alloy 925 is manufactured to API 6ACRA requirements and is approved for use under NACE MR0175.
| Element | Min % | Max % |
|---|---|---|
| C | - | 0.03 |
| Si | - | 0.50 |
| Mn | - | 1.00 |
| P | - | 0.030 |
| S | - | 0.015 |
| Cr | 19.50 | 23.50 |
| Ni | 42.00 | 46.00 |
| Mo | 2.50 | 3.50 |
| Cu | 1.50 | 3.00 |
| Nb/Cb+Ta | 1.50 | 2.40 |
| Ti | 1.90 | 2.40 |
| Al | 0.10 | 0.50 |
| Fe | Balance | Balance |
Exceptional resistance to sulfide stress cracking with high strength
Outstanding resistance to chloride stress corrosion cracking in seawater
High strength with excellent pressure containment capabilities
Similar strength but different composition with enhanced sour gas resistance
Higher temperature capability but lower corrosion resistance than 925
Non-age-hardenable with lower strength but excellent corrosion resistance
Excellent high temperature properties but lower strength than 925
Complete chemical composition, mechanical properties, and age hardening specifications
Specific requirements for Alloy 925 in API 6A wellhead and completion applications
Hardness restrictions and service requirements for sour gas applications
Get competitive pricing on high-quality Inconel 925 with complete material certifications, age hardening services, and API 6A compliance documentation.