15-5PH Stainless Steel
UNS S1550015-5PH Stainless Steel
15-5PH stainless steel (also known by a trade name “XM-12”) is an age-hardening Martensitic stainless steel with approximately 15% Chromium and 5% Nickel. 15-5PH stainless steel is a Martensitic stainless similar to that of 17-4. However, unlike 17-4PH, 15-5PH stainless steel is typically produced with an additional refining process (remelt). 15-5PH stainless steel can be supplied in ESR (Electroslag Remelt), or VAR (Vacuum Arc Remelt). This refining process is done to remove impurities and increase homogeneity. 15-5PH stainless steel has excellent corrosion resistance paired with high strength, and can be heat treated to further increase these properties. Compared to 17-4PH, 15-5PH stainless steel has better ductility and formability, while also having improved transverse strength.
Common industry/applications for 15-5PH stainless steel include: Aerospace, Food Processing, Chemical processing, Oil and Gas, Pumps and Valves, and Fasteners.
Product forms include round bar, plate & strip, and forgings.
Standards
- UNS S15500
Characteristics
- Good corrosion resistance in all conditions.
- Good ductility and formability.
- Improved traverse strengths.
Physical Properties
- Density: 0.282LB/in³ (7.78g/cm³)
- Melting Point: 2560–2625°F (1404–1440°C)
- Modulus of Elasticity: 28.5x10⁶psi (196 GPa)
Chemical Composition
* Niobium (aka Columbium) + Tantalum (Nb+Ta) = 0.15-0.45
C
Mn
S
P
Si
Cr
Ni
Cu
Mo
Mechanical Properties
* Charpy values not required as standard.
** Values for material up to 12.000 inch diameter inclusive: Longitudinal/Transverse.
The “H” conditions denote the Aging temperature (excluding H1150M which has a 2-step aging process.
KSI (MPa)
KSI (MPa)
(min) %
HRC (BHN)
(min) Ft-Lbs
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
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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
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