Standard Test Block all Leeb type test probes except G type.
Test block D is calibrated in accordance with the dynamic hardness value L ( Leeb number ) by an independant laboratory.
The Hardness of the block is etched onto the top of the block in the values for HLD, HLC, HRC HV and tolerance.
Standardized according to JJG747-1999, ASTM A956-02,DIN 50156.
The replacement block that is include in most Leeb type hardness tester kits iis Hardness 790 +/-40 HLD
790 Leeb D, 57 Rockwell C, 643 Vickers
|Test Block||Impact device calibrated with||Also suitable with||Value range||Eveness||Dimensions||Weight|
|D||D, DC||DL,C,D+15||790 ± 40HLD||≤4HLD||Φ90(±1)mmx55(±1)mm||2.73kg|
|G||G||590 ± 40HLD||≤4HLD||Φ120(±1)mmx70(±1)mm||6.17kg|
|Ease of Use|
|Add pros||Add cons|