AMS 5659 SPECIFICATION PDF

AMS 5659 SPECIFICATION PDF

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May 7, 2020

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

We recommend using the latest version if you don’t already have it. Modulus of Elasticity Tension.

Strength Yield strengths for precipitation-hardening stainless steels are to MPa. If forming is required, do so in the overaged qms for best results. The PH speccification is generally better-suited for plate applications than are the semi austenitic alloys.

Registered in England No. Cold working before ageing can be used to facilitate even higher strengths. Austenitic Alloys Austenitic precipitation hardening steels retain their austenitic structure after annealing and hardening by ageing. Hardening is achieved through the addition of one or more of the elements Copper, Aluminium, Titanium, Niobium, and Molybdenum. This is a martensitic, precipitation hardening, chromium-nickel-copper stainless steel.

Hardness remains lower than that for martensitic or semi-austenitic precipitation hardening steels. Upon cooling to room temperature, they undergo a transformation that changes the austenite spevification martensite.

Also known as ” solution treating. Due to the high strength of precipitation hardening stainless steels, most applications are amx aerospace and other high-technology industries. Typical mechanical properties achieved for PH after solution treating and age hardening are given in the table on the attached page.

A wide range of properties can be produced by this one step heat treatment.

Stainless Steel – Precipitation Hardening – AMS

As this treatment is carried out at a low temperature, no distortion occurs and there is only superficial discolouration. Reducing atmospheres should not be used because of the potential for nitrogen contamination.

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The PH stainless slecification alloy is martensitic in structure in the annealed condition and is further strengthened by a low temperature treatment which precipitates a copper containing phase in the alloy.

Good transverse toughness properties are achieved by tight chemical composition control to prevent the formation of delta phaselow carbon content to minimize grain boundary precipitationand double vacuum melting to reduce alloy segregation.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards. Semi-austenitic Alloys Unlike martensitic precipitation hardening steels, annealed semi-austenitic precipitation hardening steels are soft enough to be cold worked. Heat treatment of brazed components maybe done in inert atmospheres. Certain files on this page will require the Adobe Reader software.

Click “Get Adobe Reader” image to download the latest version now. Mechanical Property Value Spec: In the annealed condition, use machine speeds 20 to 30 percent lower than those used on stainless steel. In particular, mechanical property requirements vary widely with temper, product and product dimensions. The three types are: Heat to F C for 4 hours, air cool.

It is a through-hardening alloy, which allows it to be used in parts with large cross sections, where yield strengths in excess of ksi. The composition and processing of PH alloy is carefully controlled to minimize its content of delta ferrite, which is present in the PH stainless steel material. Physical properties Melting Range: Resistance methods or shielded fusion is recommended.

Material should be annealed after hot working for best heat treat response. 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.

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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. No guarantee is given that the information is from the latest issue of specifciation sources or about the accuracy of those sources.

Since the rate of cooling from the solution temperature is not critical, large cross sections can be air-cooled. This alloy works well in all common hot working procedures. After machining or another fabrication method, a single, low temperature heat treatment can be applied to increase the strength of the steel.

15-5 Stainless Steel Material Property Data Sheet – Product availability and request a quote

Copyright Wilsons Ltd. For optimum properties, forging temperature should not exceed 1,F 1,C. Precipitation hardening stainless steels have moderate to good corrosion resistance in a range of environments. The latter precipitation hardening alloys generally require more steps to complete heat treatment.

After forging, parts should be soecification to room temperature, then solution treated prior to aging. These include plasma arc, electron beam, gas metal arc, 6559 shielded metal arc processes. Inclusion control is done by consumable electrode remelting using the electro-slag remelting ESR process. This alloy is produced by a primary vacuum induction melt process VIMfollowed by a consumable vacuum arc remelting VAR step.