★ Non-rusty and very strong against chemicals, without special protection in use and maintenance and storage ★ Hardest next to diamond and superior in resistance to abrasion. It has 10 times the abrasion resistance of steel gauge blocks ★ Best dimensional stability, ceramic gauge blocks are free from dimensional change over time ★ Glazed measurement surface and good wringing ability ★ Coefficient of thermal expansion is almost same as for steel gauge blocks, making it an ideal substitute ★ Laser inscribed markings to be highly visible and easy to read and color fastness
PHYSICAL SPECIFICATION OF MATERIAL
Hardness （Hv）
1350
Coeff. of expansion（10-6/K）
9.8±1
Bulk density（103kg/m3）
6.02
Young's modulus（GPa）
205
Flexural strength(MPa)
1000
Poisson's ratio
0.3
Thermal conductivity(cal/cm.sec.K)
0.007
The range of nominal size：0.2mm — 300mm， 0.01″-- 12″
The manufacture standard is based on ISO/DIN/JIS/GB/T—grade K and 0 and 1 and 2 GGG-G-15C—grade 2 and 3 and B
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