GB/T 7997-2026 Pending National standards

GB/T 7997-2026 Hardmetals—Vickers hardness test

GB/T 7997-2026 Hardmetals—Vickers hardness test

Publish Date: 2026-04-30 Implement Date: 2026-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 7997-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

CCS Name: \n Test methods for the mechanical properties of metals

ICS Name: Powder metallurgy

Publish Date: 2026-04-30

Implement Date: 2026-11-01

Pages: 20 pages

Scope

This document describes the test methods for the Vickers hardness of hard alloys at room temperature and high temperatures.
This document is applicable to the determination of the Vickers hardness of hard alloys at room temperature and high temperatures. The determination of the Vickers hardness of metal ceramics at room temperature and high temperatures can also be used as a reference.

Development Information

Word Count: 24 Thousand words Pages: 20 pages

Replace the following standards

GB/T 7997-2014 Hardmetals—Vickers hardness test

Referenced Standards

GB/T 3488.4-2022 Hardmetals—Metallographic determination of microstructure—Part 4:Characterisation of porosity,carbon defects and eta-phase content GB/T 4340.2-1999 Metallic vickers hardness test—Part 2:Verification of hardness testers GB/T 4340.2-2012 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

Related Standards

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Publish Date: 1983-10-10

GB/T 4309-1984 Replaced

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GB/T 5124.1-1985 Replaced

GB/T 5124.1-1985 Methods for chemical analysis of hardmetals—The gravimetric method for the determination of total carbon content

Publish Date: 1985-04-24

GB/T 5124.2-1985 Replaced

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Publish Date: 1985-04-24

GB/T 5124.3-1985 Replaced

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