This is a bar specification, typically available in round and hexagon. Bar. •. MECHANICAL PROPERTIES. AMS Property. Value. Proof Stress. AMS (15/5 PH VAR/ESR). Technical Manufacturing limits are as stated in the Table AMS For further Laboratory. Related Specifications. Specifications: AMS Bars, AMS Sheets and Plates, UNS S Applications: PH Stainless Steel is the ferrite-free version of PH.

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If forming is required, do so in the overaged condition for best results. In the annealed condition, use machine speeds 20 to 30 percent lower than those used on stainless steel. As it is carried out at low temperature, the component undergoes no distortion.

The high tensile strengths of precipitation hardening stainless steels come after a heat treatment process that leads to precipitation hardening of a martensitic or austenitic matrix. Reducing atmospheres should not be used because of the potential for nitrogen contamination. Heat treatment of brazed components maybe done in inert atmospheres. This is a martensitic, precipitation hardening, chromium-nickel-copper stainless steel.

Stainless Steel – Precipitation Hardening – AMS

Tensile strengths range from to MPa. Copyright Wilsons Ltd.

Heat to F C for 4 hours, air cool. This alloy works well in all common hot working procedures.

15-5PH Stainless Steel (AMS 5659/ AMS 5862)

Since the rate of cooling from the solution temperature is not critical, large cross sections can be air-cooled. As this treatment is carried out at a low temperature, no distortion occurs and there is only superficial specificaion.


This alloy may be machined in any of the attainable conditions, however machining in HM will yield best tool life. AMS Carbon C 0. Modulus of Elasticity Tension.

Mechanical Property Value Spec: For optimum properties, forging temperature should not exceed 1,F 1,C. The PH alloy is generally better-suited for plate applications than are the semi austenitic alloys.

Material should be annealed after hot working for best heat treat response. Upon cooling to room temperature, they undergo a transformation that changes the austenite to martensite.

Stainless Steel Material Property Data Sheet – Product availability and request a quote

Physical properties Melting Range: Typical uses are aircraft parts, rocket engine mounts, nuclear reactor parts, landing gear components, high performance shafts, and petrochemical parts that require high strength combined with good resistance to stress corrosion. Precipitation hardening stainless steels have moderate to good corrosion resistance in a range of environments. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required This material is stocked primarily in Bar Products by 41 distributors but is also available to a lesser extent in Flat Rolled Products, Forging Products, Wire Products, Tubular Products, and Casting Products.


This shrinking is approximately 0. Click “Get Adobe Reader” image to download the latest version now. Inclusion control is done by consumable electrode remelting using the electro-slag remelting ESR process. After forging, parts should be cooled to room temperature, then solution treated prior to aging.

Material supplied by the Sppecification may vary significantly from this data, but will conform to all relevant and applicable standards. A wide range of properties can be produced by this one step heat treatment.

In particular, mechanical property requirements vary widely with temper, product and product dimensions. Typical mechanical properties achieved for PH after solution treating and age hardening are given in the table on the attached page. These include plasma arc, electron beam, gas metal arc, and shielded metal arc processes. specfiication

Cold working before ageing can be used to facilitate even higher strengths. Semi-austenitic Alloys Unlike martensitic precipitation hardening steels, annealed semi-austenitic precipitation hardening steels are soft enough to be cold worked. Please note that the ‘Datasheet Update’ date shown above is no guarantee of accuracy or whether the datasheet is up to date.