GB/T 3879-1983
Replaced
GB/T 7997-2014
Active
National standards
GB/T 7997-2014 Hardmetals—Vickers hardness test
GB/T 7997-2014 Hardmetals—Vickers hardness test
Basic Information
Standard Code:
GB/T 7997-2014
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Powder metallurgy
ICS Name:
Powder metallurgy
Publish Date:
2014-07-24
Implement Date:
2015-02-01
Pages:
12 pages
Scope
This standard specifies the test method for the Vickers hardness of hard alloys.
This standard is applicable to the determination of the Vickers hardness of hard alloys.
Development Information
Replace the following standards
Referenced Standards
GB/T 3489-1983 Hardmetals—Metallographic determination of porosity and uncombined carbon
GB/T 3489-2015 Hardmetals—Metallographic determination of porosity and uncombined carbon
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 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
GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines
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