GB/T 4340.2 is the Chinese national standard for verifying and calibrating Vickers hardness testing machines, including the force application system, indenter, and diagonal-measuring system. It keeps Vickers results traceable and comparable. To verify a Vickers tester or specify one, talk with our team.
What GB/T 4340.2 Verifies
The standard checks the test forces, the diamond pyramid indenter, and the optical system used to measure the indentation diagonals, plus overall machine performance confirmed against certified reference blocks.
Direct and Indirect Checks
Verification combines two complementary methods:
- Direct: checks of the applied forces, indenter geometry, and the diagonal-measuring system.
- Indirect: testing certified Vickers reference blocks and comparing readings against their certified values.
Why It Matters
Vickers testing spans micro to macro loads and is used on coatings, small parts, and precise metallurgical work, so measuring-system accuracy is critical. A current GB/T 4340.2 verification keeps those results defensible.
Reading the Designation
Cited as GB/T 4340.2-YYYY. Confirm the edition before setting verification intervals.
Related Standards
GB/T 230.2 verifies Rockwell machines, GB/T 231.2 verifies Brinell machines, and ISO 4545-2 is the ISO standard for Knoop machine verification.
Request a Quote
Need a Vickers hardness tester verified or supplied? Request a quote and our team will help you build a system matched to your load range and verification needs.
TensileMill CNC products for GB/T 4340.2
Our specimen-preparation systems and testing equipment compatible with GB/T 4340.2:
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
Get ready for GB/T 4340.2 with TensileMill CNC
TensileMill CNC helps labs run GB/T 4340.2 with repeatable, audit-ready results. 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 4340.2 setup.