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ASTM A437/A437M

Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service

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Organization: ASTM
Publication Date: 1 March 2006
Status: inactive
Page Count: 3
ICS Code (Fasteners in general): 21.060.01
scope:

Scope*

This specification2 covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires special processing and should not be used in general purpose applications. The term "bolting material," as used in this specification, covers rolled or forged bars, bolts, nuts, screws, washers, studs, and stud bolts. The bars shall be hot wrought. The material may be further processed by centerless grinding or by cold drawing.

The high-temperature properties of the material covered by this specification are dependent upon special heat treatment, which is required. Although the high-temperature properties are not specified, they are implied by control of the chemistry, heat treatment, and room-temperature properties of the material.

NOTE 1-High-temperature tests shall not be required, unless made a matter of agreement between the manufacturer and the purchaser.

Three levels of bolting strength are covered, designated Grades B4B, B4C, and B4D. Selection will depend on the design and the stresses and service for which the product is to be used.

NOTE 2-When ordering material under this specification, or when incorporating this specification as a reference in any individual specification, the purchaser must designate the steel by identification symbol or analysis, or both, and definitely specify the minimum mechanical properties required as selected from Table 1.

Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.

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.

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.

2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-437 in Section II of that code.

*A Summary of Changes section appears at the end of this standard.

 

Document History

November 1, 2015
Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
This specification2covers stainless and alloy-steel bolting material and bolting components specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses....
May 1, 2012
Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
This specification2 covers stainless and alloy-steel bolting specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. See Specification A962/A962M...
November 1, 2011
Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
This specification2 covers stainless and alloy-steel bolting specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. See Specification A962/A962M...
May 1, 2010
Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
This specification2 covers stainless and alloy-steel bolting specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. See Specification A962/A962M...
April 1, 2010
Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service
This specification2 covers stainless and alloy-steel bolting specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. See Specification A962/A962M...
ASTM A437/A437M
March 1, 2006
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
Scope* This specification2 covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires...
September 1, 2004
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
(Footnote *) This specification(Footnote 2) covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This...
September 10, 2001
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
Scope This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires special...
March 10, 2001
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires special...
September 10, 2000
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
1. Scope 1.1 This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires...
March 10, 2000
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
1. Scope 1.1 This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires...
March 10, 1999
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
1. Scope 1.1 This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires...
March 10, 1998
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
A description is not available for this item.
June 10, 1997
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
A description is not available for this item.
January 1, 1994
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
A description is not available for this item.
December 15, 1993
STANDARD SPECIFICATION FOR ALLOY-STEEL TURBINE-TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH-TEMPERATURE SERVICE
A description is not available for this item.
August 15, 1992
STANDARD SPECIFICATION FOR ALLOY-STEEL TURBINE-TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH-TEMPERATURE SERVICE
A description is not available for this item.
December 28, 1990
STANDARD SPECIFICATION FOR ALLOY-STEEL TURBINE-TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH-TEMPERATURE SERVICE
A description is not available for this item.
April 29, 1988
STANDARD SPECIFICATION FOR ALLOY-STEEL TURBINE-TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH-TEMPERATURE SERVICE (R 1989)
A description is not available for this item.
December 28, 1984
STANDARD SPECIFICATION FOR ALLOY-STEEL TURBINE-TYPE BOLTING MATERIAL SPECIALLY HEAT TREATED FOR HIGH-TEMPERATURE SERVICE
A description is not available for this item.
August 31, 1965
Standard Specification for Alloy-Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service
1. (a) This specification covers alloy-steel bolting material specially heat treated for high-temperature service, such as steam turbine, gas turbine, and similar uses. This material requires special...

References

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