★ Good corrosion resistance, chemical reagent will not cause damage to it, can bebarehanded inuse without anti rust treatment, for research of gauge block can be placed for a long time. In addition in the custody also does not need special treatment.
★The material of high hardness, abrasion resistance, service life is 5-10 times the steelgauge block is 4-5 times, hard alloy gauge.
★The material has good stability, no change, it can prolong the period of verification.
★The material is fine, smooth surface, grinding force, high precision.
★Linear expansion coefficient and common steel materials are similar, can replace the metalblock, and measuring the length of steel and iron products without temperature correction.
★ Mark using the most advanced laser engraving technology, pulse penetration, legibility,never fade. |
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| The hardness (Hv) |
1350 |
| Linear expansion coefficient (10-6/K) |
9.5±1 |
| The volume density (103kg/m3) |
6.02 |
| The elastic modulus (GPa) |
205 |
| The flexural strength (MPa) |
1000 |
| Poisson's ratio |
0.3 |
| Thermal conductivity (cal/cm.sec.K) |
0.007 |
| Nominal size range：0.2mm — 300mm， 0.008″-- 12″ |
Product executive standard Metric standard：ISO/ DIN/ JIS/ GB/T--- Grade K、0、 1、2；
British Standard：GGG-G-15C--- Grade 2、 3、 B |
Reminder：
After the study of domestic and foreign experts concluded that ceramic gauge block is a very practical length of precision testing results, which has the characteristics of temperature variation in ceramic gauge block and a steel block similar to the traditionalisothermal can continue the previous habits.
In addition, due to the volume density and linear expansion coefficient of ceramic gauge blocks were similar with steel block, comparative measurement there is no need to change any operating habits can be successfully achieved between ceramic gauge block and ceramic block and ceramic gauge block and steel block three and the resolution.
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