1. Scope

1.1 This specification covers the requirements for stainless steel nuts 0.25 to 1.50 in. in nominal diameter inclusive in a number of alloys in common use and intended for service applications requiring general corrosion resistance.

1.2 Seven groups of stainless steel alloys are covered, including ten austenitic, two ferritic, four martensitic, and one precipitation hardening.

^A Unless otherwise specified on the inquiry and order, the choice of an alloy from within a group shall be at the discretion of the fastener manufacturer (see 6.1 ).
^B See 4.2 for options.
^C When approved by the purchaser, alloys 303, 303Se, or XM1 may be furnished.
^D Sizes 0.75 in. and larger may be hot worked and solution annealed.
^E When approved by the purchaser, alloy 430F may be furnished.
^F When approved by the purchaser, alloy 416 or 416Se may be furnished.

1.3 Supplementary requirements of an optional nature are provided, applicable only when agreed upon by the manufacturer and the purchaser at the time of the inquiry and order.

1.4 Suitable bolts, hex cap screws, and studs for use with nuts included in this specification are covered by Specification F 593. Unless otherwise specified, all bolts, hex cap screws, and studs used with these nuts shall conform to the requirements of Specification F 593 and shall be of the same alloy group.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

A342/A342M Test Methods for Permeability of Feebly Magnetic Materials

A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

A555/A555M Specification for General Requirements for Stainless Steel Wire and Wire Rods

A564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

A582/A582M Specification for Free-Machining Stainless Steel Bars

A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

D3951 Practice for Commercial Packaging

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E1470 Test Method for Characterization of Proteins by Electrophoretic Mobility

F593 Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs

F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets

ASME Standards

Keywords

Corrosive service applications; Nuts--specifications; Stainless steel bolting materials--specifications ;

ICS Code

ICS Number Code 21.060.20 (Nuts)

DOI: 10.1520/F0594-98E01

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