ASTM F436-11

Standard Specification for Hardened Steel Washers


Over deze norm

Status Definitief
Aantal pagina's 6
Commissie F16.02
Gepubliceerd op 15-05-2011
Taal Engels

1.1 This specification covers the chemical, mechanical, and dimensional requirements for hardened steel washers for use with fasteners having nominal thread diameters of ¼ through 4 in. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, and other internally and externally threaded fasteners. These washers are suitable for use with fasteners covered in Specifications A325, A354, A449, and A490.

1.2 The washers are designated by type denoting the material and by style denoting the shape.

1.2.1 The types of washers covered are: Type 1Carbon steel. Type 3Weathering steel. Atmospheric corrosion resistance and weathering characteristics are comparable to that of steels covered in Specifications A588/A588M and A709/A709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. See 5.1. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications. This specification provides for furnishing Type 3 to chemical composition or a Corrosion Index (CRI) of 6 or higher at the suppliers option.

1.2.2 The styles of washers covered are: CircularCircular washers in nominal bolt sizes ¼ through 4 in. suitable for applications where sufficient space exists and angularity permits. BeveledBeveled washers are square or rectangular, in nominal sizes 1/2 through 1½ in., with a beveled 1 to 6 ratio surface for use with American standard beams and channels. ClippedClipped washers are circular or beveled for use where space limitations necessitate that one side be clipped. Extra ThickExtra thick washers are circular washers in nominal sizes 1/2through 1½ in., with a nominal thickness of 5/16 in. suitable for structural applications with oversized holes.

1.3 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.

1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

Note 1—A complete metric companion to Specification F436M has been developedSpecification F436M; therefore no metric equivalents are presented in this specification.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


ICS-code 21.060.20
Nederlandse titel Standard Specification for Hardened Steel Washers
Engelse titel Standard Specification for Hardened Steel Washers



Ga naar winkelwagen