15-5 PH Stainless Steel Bar

• General Information
• Chemical Composition
• Physical Properties
• Mechanical Properties

15-5 stainless steel is a martensitic, precipitation-hardening material with chromium, nickel and copper.  It is often a first choice in the aerospace industry for fasteners and structural components.  Its unique structure provides increased toughness and better corrosion resistance than its predecessor, 17-4 PH.  Both inclusion control and a minimized amount of delta ferrite as compared to 17-4 stainless steel contribute to the greater toughness of 15-5.  The alloy is further strengthened by a low temperature heat treatment which precipitates a copper containing phase in the alloy.  15-5 PH is able to meet the stringent mechanical properties required in the aerospace and nuclear industries. 

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  15-5 Bar

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15-5 PH Bar

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Standard Inventory Specifications

• UNS S15500
• ASTM A564
• AMS 5659

Common Trade Names

• 15-5 PH
• AK Steel 15-5 PH®
• ATI 15-5™
• ATI 15-5-MIL™

Inventory Size Range

• Bar : 0.500" - 6.500"

Please contact us for more details.

The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.

15-5 Chemical Composition

Element		Percent By Weight
C	Carbon	0.07 maximum
Cr	Chromium	14 - 15.5
Cu	Copper	2.5 - 4.5
Fe	Iron	Balance
Si	Silicon	1.00 maximum
S	Sulfur	0.03 maximum
Ni	Nickel	3.5 - 5.5
Mn	Manganese	1.0 maximum
P	Phosphorus	0.04 maximum
Nb Ta	Niobium plus Tantalum	0.15 - 0.45

 

Common Applications of 15-5 Stainless Steel

• Aerospace applications
• Fasteners
• Oil & Gas applications
• Valves, gears and pumps
• Food processing

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