More A The steel castings shall be heat-treated up to required temperature and shall undergo water quenching or rapid cooling by other means after heating. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, copper, tungsten, and nitrogen. All steels shall undergo tension test, and shall conform to the following mechanical requirements: tensile strength, yield strength, and elongation.
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F92 ASTM material specification. Each heat of material must be tensile tested. A provides a definition for major weld repairs and requires post-weld heat treatment i. Custom Hydraulic Power Units. Upcoming Valve Industry Events Reprints. All standards from internet, only for study usage. K November 21, at 8: It is also roughly double the strength of standard austentic stainless steels.
A valve company took exception, and indicated that duplex valve bodies and bonnets would be supplied per ASTM W A is no longer used for pressure retaining castings. In order to obtain a test report showing the actual chemistry and tensile test results, Supplementary Requirement S12 must also be imposed.
Gravity Die Castings Die casting products, mainly are cast aluminum alloy and zinc alloy with good dimensions. Link to Active This link will always route to the current Active version of the standard. Lost Foam Castings Lost foam casting products, ductile iron pipe fittings, valves Low Pressure Die Castings Lost pressure die casting products, mainly aluminum alloy casting products.
However, one thing is clear-materials are not added in these codes unless the parent specification requires tensile testing to ensure that the product a supplied actually meets the minimum mechanical properties upon which the design is based. New Washer Application Search Tool. This specification covers austenitic-ferritic duplex stainless steel castings for valves, flanges, fittings, and other pressure-containing parts.
Despite Oil Prices Post: Your email address will not be published. ViewIn Technology for Mechanical Seals. Historical Version s — view previous versions of standard. Emerson Completes Acquisition of iSolutions I. A only requires post-weld heat treatment if Supplementary Requirement S33 is imposed on the purchase order. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
It is xstm only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Pump Fittings Casting casted Pump parts, pump body, pump impeller, pump cover, pump flange and other fittings for pump industry. 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.
Investment Casting Tech a99 casting technology Die Casting Tech die casting technology, die sstm process. However, A imposes some additional requirements:. What is the difference between these specifications? A imposes several other requirements that are not included in A a A 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.
Latest Post Popular Links Events. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are a, complete or up to date. Duplex Asttm is equivalent to: A grades will not be added for the same reason. As such, many piping specifications include references to ASTM A and its various duplex grades for piping components such as valves.
Material casting Material technology, such as ductile iron, carbon steel, gray iron, stainless steel, malleable iron and alloy. Tensile tests are only required if Supplementary Requirement S32 is specified on the purchase order.
Each casting must be hydrostatically tested. Looking for a career in the Valve Industry? You can click the Top Right email! Most Related.
Additionally they require special cleaning to prepare them for use. It is imperitive to remove all matter, both organic and inorganic due to the fact that all matter will react with gaseous or liquid oxygen under certain temperature and pressure conditions. In some cases, this reaction can cause an explosion. This includes any grease or rust protection coatings. Once the valves are properly cleaned they are then sealed in a bag until ready for installation.
ASTM A995/A995M for Castings, Austenitic-Ferritic (Duplex) Stainless Steel
F92 ASTM material specification. Each heat of material must be tensile tested. A provides a definition for major weld repairs and requires post-weld heat treatment i. Custom Hydraulic Power Units.
Jujind As such, many piping specifications include references to ASTM A and its various duplex grades for piping components such as valves. Combining values from the two systems may result in nonconformance with the standard. If so kindly indicate your capability to supply the same. Work Item s — proposed revisions of this standard. Lost Foam Castings Lost foam casting products, ductile iron pipe fittings, valves Low Pressure Die Castings Lost pressure die casting products, mainly aluminum alloy casting products. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, copper, tungsten, and nitrogen.
ASTM A995 PDF