GB/T 18449.4-2022
Metallic materials—Knoop hardness test—Part 4: Tables of hardness values (English Version)

Standard No.

GB/T 18449.4-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 18449.4-2022

Replace

GB/T 18449.4-2009

Scope

The tables of hardness values given in this document apply to the Knoop hardness tests carried out in accordance with ISO 4545 1 .

GB/T 18449.4-2022 Referenced Document

• ISO 4545-1 Metallic materials — Knoop hardness test — Part 1: Test method*， 2023-08-01 Update

GB/T 18449.4-2022 history

• 2022 GB/T 18449.4-2022 Metallic materials—Knoop hardness test—Part 4: Tables of hardness values
• 2009 GB/T 18449.4-2009 Metallic materials-Knoop hardness test-Part 4: Tables of hardness values

GB/T 18449.4-2022 -All Parts