GB/T 231.2-2012 (English Version) PDF

Standard No.: GB/T 231.2-2012
Language: Chinese, Available in English version
Release Date: 2012
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2023-02
Replace By: GB/T 231.2-2022
Latest: GB/T 231.2-2022
Replace: GB/T 231.2-2002

Scope: This part of GB/T 231 specifies the inspection and calibration methods for the Brinell hardness tester (hereinafter referred to as the hardness tester) used to determine the Brinell hardness according to GB/T 231.1. This part applies to the direct test method for checking the basic function of the hardness tester and the indirect test method for the comprehensive inspection of the hardness tester. The indirect test method can be used independently for regular routine inspection of hardness testers in use. If the hardness tester is also used for hardness testing by other methods, the hardness tester shall be tested separately according to each method. This section also applies to portable hardness testers.

GB/T 231.2-2012 Referenced Document

GB/T 13634 Metallic materials—Calibration of force-proving instruments used for the verification of uniaxial testing machines*， 2019-10-18 Update
GB/T 231.1 Metallic materials—Brinell hardness test—Part 1: Test method*， 2018-05-14 Update
GB/T 231.3 Metallic materials—Brinell hardness test—Part 3:Calibration of reference blocks*， 2022-07-11 Update
GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method

2022 GB/T 231.2-2022 Metallic materials—Brinell hardness test—Part 2: Verification and calibration of testing machines
2012 GB/T 231.2-2012 Metallic materials.Brinell hardness test.Part 2:Verification and calibration of testing machines
2002 GB/T 231.2-2002 Metallic brinell hardness test--Part 2: Verification and calibration of hardness testers