ASTM International - ASTM A320/A320M-00b

Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service

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Organization: ASTM International
Publication Date: 10 March 2002
Status: historical
Page Count: 8
ICS Code (Fasteners in general): 21.060.01
ICS Code (Steels): 77.080.20
scope:

1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts. The bars shall be hot-wrought. The material may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed 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.

1.2 Several grades are covered, including both ferritic and austenitic steels designated L7, B8, etc. Selection will depend on design, service conditions, mechanical properties, and low-temperature characteristics. The mechanical requirements of Table 1 indicate the diameters for which the minimum mechanical properties apply to the various grades and classes, and Table 2 stipulates the requirements for Charpy impact energy absorption. The manufacturer should determine that the material can conform to these requirements before parts are manufactured. For example, when Grade L43 is specified to meet the Table 2 impact energy values at -150oF [-101oC], additional restrictions (such as procuring a steel with lower P and S contents than might normally be supplied) in the chemical composition for AISI 4340 are likely to be required.

Note 1-The committee formulating this specification has included several grades of material that have been rather extensively used for the present purpose. Other compositions will be considered for inclusion by the committee from time to time as the need becomes apparent. Users should note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtainable.

1.3 Nuts for use with this bolting material are covered in Section and the nut material shall be impact tested.

1.4 Supplementary Requirements (S1, S2, and S3) of an optional nature are provided. They shall apply only when specified in the inquiry, contract and order.

1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Document History

June 1, 2018
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for...
October 1, 2017
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for...
May 1, 2017
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for...
March 15, 2017
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for...
November 1, 2015
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting materials and bolting components for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for...
May 1, 2015
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for the definition of bolting. The...
May 1, 2014
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification2 covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for the definition of bolting. The...
November 1, 2011
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification for the definition of bolting. The bars shall be...
May 1, 2011
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification for the definition of bolting. The bars shall be...
November 1, 2010
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification for the definition of bolting. The bars shall be...
May 1, 2010
Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service
1.1 This specification covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification for the definition of bolting. The bars shall be...
March 15, 2008
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term “bolting material” as used in this specification...
September 1, 2007
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
March 1, 2007
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
July 12, 2005
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
May 1, 2005
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
July 1, 2004
Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
May 10, 2003
Standard Specification for Alloy-Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
March 10, 2002
Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
March 10, 2002
Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
ASTM A320/A320M-00b
March 10, 2002
Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service
1.1 This specification covers alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low-temperature service. The term "bolting material" as used in this specification...
Standard Specification for Alloy/Steel Bolting Materials for Low-Temperature Service
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