ASTM-A563M Standard Specification for Carbon and Alloy Steel Nuts (Metric)

ASTM-A563M - 2007 R13 EDITION - CURRENT
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This specification covers chemical and mechanical requirements for eight property classes of hex and hex-flange carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts. Materials shall be tested and the individual grades shall conform to specified values of material such as hardness and proof load, chemical, and mechanical requirements. Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.

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Scope

1.1 This specification covers chemical and mechanical requirements for eight property classes of hex and hex-flange carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.

Note 1Throughout this specification, the term class means property class.
Note 2Requirements for the four classes 5, 9, 10, and 12 are essentially identical with requirements given for these classes in ISO 898/II. Requirements for Classes 8S and 10S are essentially identical with requirements in an ISO 4775 Hexagon Nuts for High-Strength Structural Bolting with Large Width Across Flats, Product Grade B, Property Classes 8 and 10. Classes 8S3 and 10S3 are not recognized in ISO standards.

1.2 Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels covered in Specification A588/A588M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition (see 6.2). When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.

1.3 The nut size range for which each class is applicable is given in the table on mechanical requirements.

1.4 Appendix X1 gives guidance to assist designers and purchasers in the selection of a suitable class.

1.5 Appendix X2 gives data on the properties of slotted hex nuts and hex jam nuts.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Note 3This specification is the metric companion of Specification A563.

Keywords

alloy steel; carbon steel; metric; nuts; steel; weathering steel; ICS Number Code 21.060.20 (Nuts)

To find similar documents by ASTM Volume:

01.08 (Fasteners; Rolling Element Bearings)

To find similar documents by classification:

21.060.20 (Nuts)

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Document Number

ASTM-A563M-07(2013)

Revision Level

2007 R13 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Jan. 15, 2014

Document Type

Specification

Page Count

8 pages

Committee Number

F16.02