ASTM A995 PDF

Morales Agreda Designation: A — 98 Standard Specification for Castings, Austenitic-Ferritic Duplex Stainless Steel, for Pressure-Containing Parts1 This standard is issued under the fixed designation A ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Scope Systematic Manual Point Count4 1. Terminology stainless steel castings for valves, flanges, fittings, and other pressure-containing parts.

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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. This abstract is a brief summary of the referenced standard. It is informational 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.

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. Scope 1. 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 values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

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ASTM (A995)

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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Duplex Stainless

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.

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ASTM A995/A995M for Castings, Austenitic-Ferritic (Duplex) Stainless Steel

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.

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