GB/T 230.2 is the Chinese national standard for verifying and calibrating Rockwell hardness testing machines and their indenters, so that Rockwell results are traceable and comparable. To verify a Rockwell tester or specify one for the Chinese market, talk with our team.
What GB/T 230.2 Verifies
The standard checks the elements that control a Rockwell result: the test forces, the indenter, the depth-measuring system, and the overall machine performance confirmed against certified reference blocks.
Direct and Indirect Checks
Verification combines two complementary methods:
- Direct: checks of applied forces, indenter geometry, and the depth-measuring system.
- Indirect: testing certified hardness reference blocks and comparing the readings against their certified values.
Why It Matters
Rockwell hardness is a fast, widely used acceptance check, so an out-of-tolerance machine can accept or reject material incorrectly. A current GB/T 230.2 verification keeps those results defensible for domestic acceptance and audit.
Reading the Designation
Cited as GB/T 230.2-YYYY. Confirm the edition before setting verification intervals.
Related Standards
GB/T 231.2 verifies Brinell machines and GB/T 4340.2 verifies Vickers machines under the same Chinese framework.
Request a Quote
Need a Rockwell hardness tester verified or supplied? Request a quote and our team will help you build a system matched to your hardness scale and verification needs.
TensileMill CNC products for GB/T 230.2
Our specimen-preparation systems and testing equipment compatible with GB/T 230.2:
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Electro Mechanical Universal Testing System 50kN / 1000kN with Precision Load Cell
Electro-Mechanical UTM · 50 kN / 1000 kN with Precision Load Cell
Servo-Hydraulic Universal Testing Machine (300 kN – 3000 kN)
Servo-Hydraulic UTM · 300 kN – 3000 kN
Precision Alignment Device (NADCAP-Ready Precision Fixture)
NADCAP-Ready Precision Alignment Fixture
Bring GB/T 230.2 testing in-house with TensileMill CNC
Adding capacity or replacing older equipment? TensileMill CNC can support your GB/T 230.2 program. That typically means load cells, alignment hardware, and the reference setups used for machine and extensometer verification. Let us know your application and our engineers will help you build a compliant GB/T 230.2 setup.