GB/T 3879-1983
Replaced
GB/T 3849.2-2010
Active
National standards
GB/T 3849.2-2010 Hardmetals—Rockwell hardness test (scale A)—Part 2:Preparation and calibration of standard test blocks
GB/T 3849.2-2010 Hardmetals—Rockwell hardness test (scale A)—Part 2:Preparation and calibration of standard test blocks
Basic Information
Standard Code:
GB/T 3849.2-2010
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analytical methods for powder metallurgy
ICS Name:
Powder metallurgy
Publish Date:
2011-01-14
Implement Date:
2011-11-01
Pages:
7 pages
Scope
This part of GB/T 3849 specifies the preparation and calibration of first-level, second-level, and working-standard specimens made of hard alloys, which are used to calibrate Rockwell hardness testers (A scale) and indenters.
Development Information
Referenced Standards
Adopt standards
ISO 3738-2:1988
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