GB/T 230.2-2012

Abolished

Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines(scales A,B,C,D,E,F,G,H,K,N,T)

金属材料洛氏硬度试验第2部分：硬度计（A、B、C、D、E、F、G、H、K、N、T标尺）的检验与校准

Standard Type

GBT

ICS

77.040.10;19.060

CCS

N71

Status

废止

Issue Date

2012-12-31

Implementation

2013-06-01

Responsible Dept

中国机械工业联合会

Drafting Unit

中国机械工业联合会

🔗 Related Standards / 同类标准

GB/Z 38434-2019 Metallic materials—Guide to test pieces preparation for mechanical testing GB/Z 40387-2021 Metallic materials—Principles and designs for multiaxial fatigue testing GB/T 1814-1979 Inspection method for steel work fractures GB/T 3771-1983 Conversion of hardness and strength for copper alloys GB/T 4197-1984 Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys GB/T 4196-1984 Method for testing the density of tungsten and molybdenum bars GB/T 4195-1984 Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles GB/T 4194-1984 Creep testing，high temperature treatment and metallographic examination of the tungsten wires