ASTM A193/A193M-23 pdf free download – Standard Specification For Alloy-Steel And Stainless Steel Bolting For High Temperature Or High Pressure Service And Other Special Purpose Applications.
This specification2 covers alloy and stainless steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications. See Specification A962/A962M for the definition of bolting. Bars and wire shall be hot-wrought and may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be carbide solution treated or carbide solution treated and strain-hardened. When strain hardened austenitic stainless steel is ordered, the purchaser should take special care to ensure that Appendix X1 is thoroughly understood.
Several grades are covered, including ferritic steels and austenitic stainless steels designated B5, B8, and so forth. Selection will depend upon design, service conditions, mechanical properties, and high temperature characteristics.
7.Chemical Composition
7.1 Each alloy shall conform to the chemical compositionrequirements prescribed in Table 1.
8. Heat Analysis
8.1 An analysis of each heat of steel shall be made by themanufacturer to determine the percentages of the elementsspecified in Section 7.The chemical composition thus deter-mined shall be reported to the purchaser or the purchaser’srepresentative, and shall conform to the requirements specifiedin Section 7.Should the purchaser deem it necessary to havethe transition zone of two heats sequentially cast discarded, thepurchaser shall invoke Supplementary Requirement s3 ofSpecification A788/A788M.
9.Mechanical Properties9.1 Tensile Properties:
9.1.1 Requirements—Bolting material as represented by thetension specimens shall conform to the requirements pre-scribed in Tables 2 and 3 at room temperature after heattreatment.Stainless strain hardened bolting components (Class2,2B, and 2C) shall be tested full size after strain hardening todetermine tensile strength and yield strength and shall conformto the requirements prescribed in Tables 2 and 3. In caseswhere tensile testing equipment of sufficient capacity is notavailable, stainless strain hardened bolting components greater
ASTM A193/A193M-23 pdf free download – Standard Specification For Alloy-Steel And Stainless Steel Bolting For High Temperature Or High Pressure Service And Other Special Purpose Applications
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