15-5PH Stainless Steel | XM-12 | S15500

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15-5PH Stainless Steel | XM-12 | S15500  Stainless Steel

We are the Leading Supplier of Stainless Steel 15-5PH.  
Stainless steel 15-5 PH (XM-12 / S15500 Steel) is a modification of 17-4 PH developed in the 60’s. 

We supply and export to Singapore , Indonesia , Brunei and other ASEAN Countries.  
Our specialty is to provide wide range of stainless steel
 with no minimum order (MOQ).

E Steel supply Stainless Steel 15-5PH Round Bars / Rods / Shafts.  


Stainless Steel 15-5PH Suppliers - UNS S15500 , XM-12 Precipitation Stainless Steel

Stainless steel 15-5 PH, also known as UNS S15500 or XM-12, is a modification of 17-4 PH developed in the 60’s. UNS S15500 stainless steel has a more refined microstructure as a result of the remelting process in which it was developed. This refined structure enhances toughness, especially in the transverse direction of the material. 15-5PH also has excellent corrosion resistance, good fabricating characteristics and low temperature hardening which makes Stainless Steel 15.5 PH the preferred alloy for many industries.

The composition of 15/5PH includes small amounts of carbon, manganese, phosphorus, columbium (or niobium), tantalum, silicon and sulfur. 15/5 PH can be forged, welded and formed. Machining may be performed in the solution-annealed state or in the final heat treat condition. Desired mechanical properties such as ductility and strength can be achieved through heating the material at various temperatures.

UNS S15500 is a martensitic precipitation hardening grade. Martensitic stainless steels were designed as a type of alloy which is corrosion resistant and could also be hardened through heat treatment.

Chemical Composition of 15-5PH Stainless Steel 

Element Content (%)
Iron, Fe 75
Chromium, Cr 14.48
Nickel, Ni 4.5
Copper, Cu 3.5
Manganese, Mn ≤1
Silicon, Si ≤1
Nb + Ta 0.3
Carbon, C ≤0.07
Phosphorous, P ≤0.04
Sulfur, S ≤0.03

15-5 PH Mechanical Properties

Condition Ultimate Tensile Strenght Yield Strength Elongation Reduction of Area Hardness Brinell Hardness Rockwell
H900 190,000 170,000 6 15 388 C40
H1025 155,000 125,000 8 27 331 C35
H1075 145,000 125,000 9 28 311 C32
H1150 135,000 105,000 11 30 277 C28
H1150-M 115,000 75,000 14 35 255  


15.5PH Stainless Steel used in Industries - 

  • Aerospace , Chemical, Food processing, General metal working,  Paper industries,  Petrochemical.


Applications or products that used XM-12 , 15-5PH Stainless Steel 

  • Aircraft components, Cylinders,  Engine parts, Fittings, Gears, Hallow shafts, Marine gas turbine, compressor sections, Paper mill equipment, Shafts, Valves.

Our Sales & Supplier Network

Australia, Pakistan,  Malaysia, Singapore, Taiwan, China,Vietnam, Belgium, Japan, South Korea, Philippines, France, United Kingdom, Indonesia, Thailand, Hong Kong, China, Sweden, United States, Dubai, Finland, Brunei,Germany.

E Steel is a Global Metal Procurement Company in providing and sourcing raw materials to the wide range of engineering industries / sectors.  We works as the the Online B2B Metal Marketplace to help our customers in finding the special steels that might feel hard to source locally. 


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