GB/T 18449.1-2009Metallic materials - Knoop hardness test - Part 1: Test method (English PDF)
金属材料 努氏硬度试验 第1部分：试验方法
GB/T 18449.1 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 18449.1-2024 | Metallic materials - Knoop hardness test - Part 1: Test method | Valid |
| GB/T 18449.1-2009 | Metallic materials - Knoop hardness test - Part 1: Test method | Obsolete |
GB/T 18449.1-2009 is obsolete. It has been replaced by GB/T 18449.1-2024. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Level / Type
National · Recommended
Issue date
June 25, 2009
Implementation date
April 1, 2010
Scope
GB/T 18449.1-2009 is the English-translated version of 金属材料 努氏硬度试验 第1部分：试验方法.
GB/T 18449.1-2009 is the Chinese national standard "Metallic materials - Knoop hardness test - Part 1: Test method". It was issued on June 25, 2009 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and took effect on April 1, 2010. It is obsolete: it has been replaced by GB/T 18449.1-2024.
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Document preview — GB/T 18449.1-2009
National Standard of the People's Republic of China
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China.
Date of issue: 2009-06-25.
Date of implementation: 2010-04-01.
Status: obsolete, replaced by GB/T 18449.1-2024.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
Cited by
- GB/T 11354-2025Determination of nitriding hardness depth and metallographic examination for steel
- GB/T 34474-2025Methods for determination of banded structure of steels
- GB/T 5617-2025Determination of surface hardening depth for steel
- GB/T 18449.4-2022Metallic materials - Knoop hardness test - Part 4: Tables of hardness values
- GB/T 9790-2021Metallic materials - Vickers and Knoop microhardness tests of metallic and other inorganic coatings
- GB/T 38751-2020General rules of hardness test for heat treated parts
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Related Standards
GB/T 18449.2-2012 — Metallic materials -- Knoop hardness test -- Part 2: Verification and calibration of testing machines
GB/T 18449.2-2001 — Metallic Knoop hardness test - Part 2: Verification of hardness testers
GB/T 18449.3-2012 — Metallic materials -- Knoop hardness test -- Part 3: Calibration of reference blocks
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GB/T 18449.1-2009
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