INCONEL® 718 NACE Nickel Alloy
UNS N07718 | ASTM B637 | NACE MR0175 | API 6ACR/718INCONEL® 718 NACE Nickel Alloy
INCONEL® 718 NACE nickel alloy is a variant of the 718 nickel alloy. It is produced with a modified chemical composition and which has been age-hardened. It is produced specifically in a way to ensure it meets the maximum hardness requirements of NACE MR0175 for use in sour gas H₂S service. 718 NACE has good corrosion resistance and weldability, combined with high strength while having lighter tolerances on the hardness. Properties are typical and are not required to be reported in the Annealed condition. Typically, 440C is purchased in an annealed condition and then machined prior to heat treating as material can be hardened to 50-60HRC. Can be used in various industry/applications based on the desired condition and application use.
Common industry/applications are: Sour Gas, Oil and Gas, Aerospace, Rockets and Spacecraft, and Fasteners.
Product forms include round bar and forgings.
Standards
- UNS N07718
- ASTM B637
- NACE MR0175
- API 6ACR/718
Characteristics
- Good corrosion and heat resistance.
- Suitable for use Good corrosion resistance.
- Capable of various Quench & Tempers.
Physical Properties
- Density: 0.297LB/in³ (8.22g/cm³)
- Melting Point: 2160–2440°F (1182–1337°C)
- Modulus of Elasticity: 29.0x10⁶psi (200 GPa)
Chemical Composition
* Niobium (aka Columbium) + Tantalum (Nb+Ta) = 4.87-5.20.
Other: Pb: 1000ppm, Se: 0.0005ppm, Bi: 50ppm & Mg: 0.0006ppm.
C
Mn
S
P
Si
Mo
Ti
Al
Cu
Cr
Ni
Co
Mechanical Properties
* RoA Values: ≤10” diameter / >10” diameter
KSI (MPa)
KSI (MPa)
HRC (BHN)
in (mm)
°F (°C)
Ft-Lbs (J)
Ft-Lbs (J)
in (mm)
Specialty Steel Supply makes all reasonable efforts to ensure the accuracy and correctness of the data found on this website and the associated documents but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
Stainless and Alloys
We collaborate to help you exceed requirements by bringing your best ideas forward and eliminating non-conformance.
Specialty Steel Supply Inc. is one of the largest distributors of austenitic, precipitation hardened, duplex and martensitic stainless steels. We have a wide range of products and types of stainless steel round bar and our well trained staff offers many years of experience in all aspects of the steel industry. Our ability to procure and source metals from all parts of the world allows us to stay competitive in a global marketplace. We are committed to developing and servicing just in time inventory programs.
Specialty Steel Supply
19201 Circle Lake Drive
Pinehurst, Texas 77362
info@specialtysteelsupply.com
Business Hours
Sunday - Closed
