GB/T 230-1991
Metallic materials--Rockwell hardness test (English Version)

Standard No.

GB/T 230-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2004-10

Replace By

GB/T 230.1-2004

Latest

GB/T 230.1-2018

Scope

This standard specifies the scope of application of the Rockwell hardness test for metals, test principles, symbols and descriptions, test instruments, samples, tests and test result processing.

GB/T 230-1991 history

• 2018 GB/T 230.1-2018 Metallic materials.Rockwell hardness test.Part 1:Test method
• 2009 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)
• 2004 GB/T 230.1-2004 Metallic Rockwell hardness test-Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T)
• 1991 GB/T 230-1991 Metallic materials--Rockwell hardness test