Customization: | Available |
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Transport Package: | Safe and Cost-Effective Packed by Carton |
Specification: | granite |
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Product Features:
Natural aging treatment for millions of years without Internal stress;
Good rigidity and low disformation;
Mounting holes can be customized.
Granite surface plate optical breadboard is widely used in optical, medical, high precision equipment manufacturing and testing as well as aviation experiments exprements. The granite surface plates are exploited from undergrand. With millions of years natural aging treatment, it is highly stable and not subject to disformation in under normal tempreture changes. It is black in appreance with even density. It features anti-corrosive, anti-magntification and anti-diformation with high rigidity and hardness.
Technical Specifications:
Specific Gravity |
2970 - 3070 kg/m2 |
Compressive Strength |
245 -254 Mpa |
Elastic Modulus |
1.27 - 1.47 Gpa |
Linear Expansion Coefficient |
4.61x10 - 6/0 C |
Water Absorptivity |
< 0.31% |
Shore Hardness |
70Hs Above |