ASTM B425-11(2017)

    Standard Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825, UNS N08221, and UNS N06845) Rod and Bar


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    1. Scope

    1.1 This specification2 covers nickel-iron-chromium-molybdenum-copper alloy (UNS N08825, UNS N08221, and UNS N06845)3 in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    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

    B424 Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Plate, Sheet, and Strip

    B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys

    E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M

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

    E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys


    ICS Code

    ICS Number Code 77.150.40 (Nickel and chromium products)

    UNSPSC Code

    UNSPSC Code 11101711(Non ferrous alloy)


    Referencing This Standard
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    DOI: 10.1520/B0425-11R17

    Citation Format

    ASTM B425-11(2017), Standard Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825, UNS N08221, and UNS N06845) Rod and Bar, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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