• Gage Blocks with Thermal Expansion Coefficient Data
• Thermal expansion at 20 +/- 1°C less than 1/500 that of steel
• Block sizes: 30, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000mm
• Material – Ultra-low thermal expansion fine ceramic
• ASME Grade K

Mitutoyo Zero CERA blocks are an innovative length standard offering ultra-low thermal expansion and excellent long-term stability. Mitutoyo CERA blocks are made of ultra-low expansion ceramic with a thermal expansion 1/500 that of steel in a temperature range of 20+/-1°. The magnetization-free and magnetization-free CERA gage blocks help improve calibration work efficiency by eliminating the need for temperature compensation and provide excellent long-term stability with 50% better rigidity and flexural strength of glass 1/3 specific gravity of steel.

Mitutoyo Zero CERA Gage Blocks with CTE Set:

• Ultra-low Thermal Expansion - ZERO CERA BLOCK is a highly stable length standard suitable for calibrating the temperature compensation of machine tools and measuring instruments in a non-20°C environment. ZERO CERA BLOCK can also improve calibration work efficiency by eliminating the need for temperature compensation leaving only the thermally induced dimensional change of the calibration target to be considered.
• Excellent Long-Term Stability - Unlike glass material, the ceramic material used for ZERO CERA BLOCK has a pore-less structure without an amorphous state and is more stable than other low-thermal expansion materials. This provides excellent long-term stability, both for the length and the (extremely small) coefficient of thermal expansion.
• Lightweight - The rigidity and flexural strength is 50% better than glass and the low specific gravity (1/3 that of steel) make ZERO CERA BLOCK easy to handle. The only care needed to prevent damage is to avoid dropping or knocking the blocks.
• Rust Free - ZERO CERA BLOCK can be handled with bare hands without worrying about rust or heat conduction. Also, no treatment is needed to prevent rust during storage.
• Magnetization - ZERO CERA BLOCK is suitable for use in clean rooms (particularly a non-20˚C environment) as it is nonmagnetic and does not pick up iron dust. ZERO CERA BLOCK is also nonconductive with a low dielectric constant and does not attract much airborne dust by becoming electrically charged.
• World Class Calibration Capability - Mitutoyo America Corporation’s calibration laboratory utilizes state-of-the-art technology to calibrate virtually any metrology tool. A2LA accredited (Certificate #750-01) to ISO/ IEC 17025 for testing and calibration labs, this facility employs professional calibration technicians to provide NIST-traceable accuracy certification, as well as calibration services for Mitutoyo and other manufacturer's gages and gage blocks.
• Interferometric Measurement Technology for Coefficient of Thermal Expansion - Mitutoyo has developed a highly accurate system for measuring the coefficient of thermal expansion for gage blocks. In this system, advanced temperature and interferometric measurement technology combine to measure, simultaneously, dimensional change at each end of a gage block. This system provides Mitutoyo with the capability to measure coefficients of thermal expansion within a small uncertainty value (0.035 ×10E6/K (k=2)). Gage blocks are available whose coefficient of thermal expansion has been measured. These are otherwise standard gage blocks supplied with individual calibration certificates specifying the actual coefficient of thermal expansion.