FOR INTERNAL REFERENCE ONLYDesignation: A/AM – 12 Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Co. Heat treatment can modify the corrosion resistance of stainless steels. Thus, the corrosion behavior of ASTM A/A M GR 5A super duplex. The Duplex Stainless classification includes the following ASTM standards; ASTM A and ASTM A

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This abstract is a brief summary of the referenced standard. ViewIn Technology for Mechanical Seals. Custom Hydraulic Power Units. Historical Version s – view previous versions of standard.

Castings z890 be heat treated in accordance with the required procedure and heat-treat temperature. Rigging and Lifting of Large Valves Post: ASTM A lists tensile property requirements, but does not require that the tensile tests actually be performed. It is the responsibility of the purchaser to determine which grade shall be furnished depending on design and service conditions, mechanical properties, and corrosion-resistant characteristics.

A only requires post-weld heat treatment if Supplementary Requirement S33 is imposed on the purchase order.

As such, many piping specifications include references to ASTM A and its various duplex grades for piping components such as valves. New Washer Application Search Tool. Work Item s – proposed revisions of this standard.

Upcoming Valve Industry Events Reprints. A valve company took exception, and indicated that duplex valve bodies and bonnets would be supplied per ASTM A The Adventures of Duke Waters. A imposes several other requirements that are not included in A nor A However, A imposes some additional requirements: Proper heat treatment of these alloys is usually necessary to enhance corrosion resistance and in some cases to meet mechanical properties.


However, A imposes some additional requirements:.

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New Products Prev Next Rotork: Emerson Completes Acquisition of iSolutions Asgm. The material may be adopted in ASME codes for specific products or applications, including: The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Looking for a career in the Valve Industry?

Minimum heat-treat temperatures are specified; however, it is sometimes necessary to heat-treat at higher temperatures, hold for some minimum time at temperature and then rapidly cool the castings in order to enhance the corrosion resistance and meet the required mechanical properties. Admiral Valve Asmt Partnership with Diek. It is informational only and asgm an official part of the standard; the full text of the standard itself must be referred to for its use and application.

Latest Post Popular Links Events. Referenced Documents purchase separately The documents listed below are referenced within adtm subject standard but are not provided as part of the standard. Despite Oil Prices Post: In order to obtain a test report showing the actual chemistry and tensile test results, Supplementary Requirement S12 must also be imposed.

Castings shall be marked for material identification with the specification designation and grade. Each casting must be hydrostatically tested. Any casting that meets A also meets A Certification must be provided listing the chemical analysis of the heat and the mechanical property test results. Texas Manufacturing Expands Modestly, Outlook. Marking of heat numbers on castings is not required unless specified separately on the purchase order.

Duplex Stainless Steel Investment Casting Compositions – Wisconsin Precision Casting

What is the difference between these specifications? Link to Active This link will always route to the current Active version of the standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.


Monitoring Pressure Relief Devices Post: Tensile tests are only required if Supplementary Requirement S32 is specified on the purchase order.

For this reason alone, many specifications that don’t require actual tensile aztm are axtm represented in these codes. ASTM A was reapproved without changes in Each wstm of material must be tensile tested.

The steel shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, copper, tungsten, and nitrogen.

Duplex Stainless Steels │ Alloy Guide │ MetalTek

Emerson Completes Acquisition of iSolutions I. Shale Work Up in U. Combining values from the two systems may result in nonconformance with the standard. However, one thing is clear-materials are not added in these codes unless the parent specification requires tensile testing to ensure that the product being supplied actually meets the minimum mechanical properties upon which the design is based.

Each casting must be marked with a heat number or with a serial number traceable to a heat number. A grades will not be added for the same reason. A provides a definition for major weld repairs and requires post-weld heat treatment i.