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GB/T 225-2006 Active National standards

GB/T 225-2006 Steel—Hardenability test by end quenching (Jominy test)

GB/T 225-2006 Steel—Hardenability test by end quenching (Jominy test)

Publish Date: 2006-11-01 Implement Date: 2007-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 225-2006
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Metallographic examination methods
ICS Name: Other testing methods for metal materials
Publish Date: 2006-11-01
Implement Date: 2007-02-01
Pages: 14 pages

Scope

This standard specifies the use of the end quenching test method (Jominy test) to determine the quenchability of steel. For the test, a specimen with a diameter of 25 mm and a length of 100 mm is used. Note: Through consultation, for the application scope of a certain regulation, an approved mathematical model (see Appendix C) can be used to calculate the Jominy curve instead of the end quenching test described in this standard. If there are any disputes about the results, the end quenching test should be conducted.

Development Information

Word Count: 22 Thousand words Pages: 14 pages

Replace the following standards

GB/T 225-1988 Steel-hardenability test by end quenching(Jominy test)

Referenced Standards

GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 230.3-2002 Metallic rockwell hardness test—Part 3:Calibration of hardness reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2012 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method

Adopt standards

ISO 642:1999

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