GB/T 3879-1983
Replaced
GB/T 7997-2026
Pending
National standards
GB/T 7997-2026 Hardmetals—Vickers hardness test
GB/T 7997-2026 Hardmetals—Vickers hardness test
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
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国有色金属标准化技术委员会(SAC/TC 243)
Pages:
20 pages
Scope
本文件描述了硬质合金室温和高温维氏硬度的试验方法。
本文件适用于硬质合金室温和高温维氏硬度的测定。金属陶瓷室温及高温维氏硬度的测定可参考使用。
Development Information
Drafting Units:
厦门钨业股份有限公司、成都美奢锐新材料有限公司、华侨大学、北京工业大学、山东宗德机电设备有限公司、厦门金鹭特种合金有限公司、四川大学、中南大学、钢铁研究总院有限公司、南昌硬质合金有限责任公司、国合通用(青岛)测试评价有限公司、江西国创院新材料有限公司、浙江恒成硬质合金有限公司、赣州澳克泰工具技术有限公司
Drafting Persons:
刘超、范超颖、赵妹、黎明华、鲁攀、刘强、张淑彬、文晓、姜峰、宋晓艳、孙颜涛、叶金文、王守仁、杜敏、甘信峰、邹佳佳、叶楠、李爱林、钟志强
Replace the following standards
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
GB/T 4309-1984
Replaced
GB/T 4309-1984 Classification and designation for powder metallurgy materials
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
GB/T 5124.2-1985
Replaced
GB/T 5124.2-1985 Methods for chemical analysis of hardmetals—The gravimetric method for the determination of free(insoluble) carbon content
GB/T 5124.3-1985
Replaced
GB/T 5124.3-1985 Methods for chemical analysis of hardmetals—The potentiometric method for the determination of cobalt content
GB/T 5124.4-1985
Replaced