ASTM A/AM: Standard Specification for Castings, Austenitic-Ferritic ( Duplex) Stainless Steel, for Pressure-Containing Parts. Designation: A/AM − 13Standard Specification for Castings, Austenitic- Ferritic (Duplex) Stain. CD3MN; 4A. Cast UNS: J Cast Grade: CD3MN; 4A. Cast ASTM: A, A, 4A (CENT, INVEST, SAND). Wrought UNS: S Wrought Grade:
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Also see alternate Duplex Cross Reference, click here.
A Grade 5A ASTM :: Total Materia
Any casting that meets A also meets A Marking of heat numbers on castings is not required unless specified separately on the purchase order. Combining values from the two systems may result in nonconformance with the standard.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. It finds applications due to both excellent corrosion resistance and high strength.
A imposes several other requirements that are not included in A nor A It is informational only and not an official part of the standard; a95 full text of the standard itself must be referred to for astmm use and application.
Duplex Stainless Steels
This abstract is a brief summary of the referenced standard. F92 ASTM material specification. Texas Manufacturing Expands Modestly, Outlook.
The Adventures of Duke Waters. The duplex stainless steels offer a combination of enhanced mechanical properties and corrosion resistance when properly balanced in composition and properly heat treated. The standard duplex S A F51 composition has been refined over many years, and the resulting composition range was endorsed as UNS S in Lost Foam Castings Lost x995 casting products, ductile iron pipe fittings, valves Low Pressure Die Castings Lost pressure die casting products, mainly aluminum alloy casting products.
Referenced Documents purchase aa995 The documents listed below are referenced within the subject standard but are not provided as part of the standard. Admiral Valve Announces Partnership with Diek.
Metal melting, metal casting, resin sand casting and green sand casting. Sand casting Tech sand casting technology, from material to pouring theory. As such, many piping specifications include references to ASTM A and its various duplex grades for piping components such as valves.
Certification must be provided listing the chemical analysis of the heat and the mechanical property test results. All standards from internet, only for study usage. This alloy resists chloride environments and sulfide stress corrosion.
All steels shall undergo tension test, and shall conform to the following mechanical requirements: This specification covers austenitic-ferritic duplex stainless steel castings for valves, flanges, fittings, and other pressure-containing parts. What is the difference between these specifications? Duplex AF51 is equivalent to: Monitoring Pressure Relief Devices Post: 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.
The steel castings shall be heat-treated up to required temperature and shall undergo water quenching or rapid cooling by other means after heating. Duplex S provides excellent guaranteed corrosion resistance, but it should be noted much astmm the Duplex S currently produced also dual conforms with Duplex S It is also roughly double the strength of standard austentic stainless steels.
ViewIn Technology for Mechanical Seals. Tensile tests are only required if Supplementary Requirement S32 is specified on the purchase order. China Castings November 22, at 6: K November 21, at 8: I ast, like to know whether therre is a casting equivalent for A Gr. 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. Benefits of using Duplex Stainless Steel Similar corrosion resistance to Type Greater tensile and yield strength Good ductility and toughness Good stress corrosion cracking resistance SSC Duplex stainless steel is designed to combine improved resistance to stress corrosion cracking including sulfide stress corrosion crackingpitting, crevice corrosion and high strength when compared with other stainless alloys.
Looking for a a95 in the Valve Industry? Investment Casting Tech investment casting technology Die Casting Tech die atsm technology, die casting process. Related Standard duplex stainless steel. The grades of steels covered here are: You can click s995 Top Right email!
Each heat of material must be tensile tested. Custom Hydraulic Power Units.
It is the responsibility of the purchaser to determine which grade shall be furnished depending on design and service conditions, mechanical properties, and corrosionresistant characteristics. However, A imposes some additional requirements: A only requires post-weld heat treatment if Supplementary Requirement S33 is imposed on the purchase order.
A valve company took exception, and indicated that duplex valve bodies and bonnets would be supplied per ASTM A Leave a Reply Cancel reply Your email address will not be published.
For further details pls contact with us through mark castingquality. Latest Post Popular Links Events. Link to Active This link will always a95 to the current Active version of the standard. Work Item s – proposed revisions of this standard.