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    ASTM F836M - 02(2015)

    Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric)

    Active Standard ASTM F836M | Developed by Subcommittee: F16.04

    Book of Standards Volume: 01.08

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    This specification covers the chemical and mechanical requirements for style 1 stainless steel metric nuts. Groups and property classes of austenitic, ferritic, martensitic, and precipitation hardening stainless steel alloys are covered. Materials shall be cold-formed, hot-formed, or machined form, and shall conform to chemical, mechanical, dimensional and surface finish properties. Stainless steel shall also conform to heat treatment requirements depending on material grade. The material shall be capable of passing chemical, mechanical, and corrosion resistance tests in accordance to the specification. Product marking and packaging shall conform to the requirements of the specification.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the chemical and mechanical requirements for stainless steel metric nuts with nominal thread diameters M1.6 through M36 and intended for use in engineering applications requiring general corrosion resistance.

    1.2 Eight groups of stainless steel alloys are covered, including three austenitic (Grades A1, A2, and A4), one ferritic (Grade F1), three martensitic (Grades C1, C3, and C4), and one precipitation hardening (Grade P1).

    1.3 Seventeen property classes are covered, including nine austenitic, one ferritic, six martensitic, and one precipitation hardening. The property classes with the permissible alloys for each are listed in Table 1.

    (A) When approved by the purchaser, Alloys 303, 303Se, or XM1 may be furnished.
    (B) When approved by the purchaser, Alloy 430F may be furnished.

    1.4 This specification is based in concept and content on ISO 3506. The chemical and mechanical requirements specified for all property classes, except as given in 1.4.1, are essentially identical with classes of the same designation in ISO 3506.

    1.4.1 This specification includes 13 of the 16 property classes covered in ISO 3506. Additionally, it includes property classes A1-70, A2–70, A4–70, A1–80, A2–80, and A4–80 for products with nominal thread diameters larger than M20; and four non-ISO property classes, C1-110, C4-110, C3-120, and P1-90.

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

    1.6 Suitable bolts, hex cap screws, and studs for use with nuts included in this specification are covered by Specification F738M. Unless otherwise specified, all bolts, hex cap screws, and studs used with these nuts shall conform to the requirements of Specification F738M and shall be of the same alloy group.

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

    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

    F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets (Metric)

    F738M Specification for Stainless Steel Metric Bolts, Screws, and Studs

    F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

    ISO Standard

    ISO 3506 Corrosion-Resistant Stainless Steel Fasteners Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990,

    ASME Standards

    ASME B18.2.4.1M Metric Hex Nuts, Style 1

    ICS Code

    ICS Number Code 21.060.20 (Nuts)

    UNSPSC Code

    UNSPSC Code 31161700(NutsĀ )

    Referencing This Standard

    DOI: 10.1520/F0836M-02R15

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM F836M-02(2015), Standard Specification for Style 1 Stainless Steel Metric Nuts (Metric), ASTM International, West Conshohocken, PA, 2015,

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