ASTM C1025 covers determination of the modulus of rupture in bending of specimens cut from graphite electrodes using a simple square cross section beam in four-point loading at room temperature. ASTM C1025 provides a means for determining the modulus of rupture of a square cross section graphite specimen machined from the electrode core sample with a minimum core diameter of 57 mm. ASTM C1025 is recommended for quality control or quality assurance purposes, but should not be relied upon to compare materials of radically different particle sizes or orientation characteristics. For these reasons an absolute value of flexural strength may not be obtained.
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Recommended Test Machine
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Recommended Testing Accessories
Load rating of 2.5 kN (550 lbf)
Designed in accordance to ASTM C1161
Articulating rollers
Interchangeable roller diameters from 1 mm to 12.7 mm (0.04 in to 0.5 in)
Load ratings up to 10 kN (2,250 lbf)
Interchangeable roller diameters from 1 mm to 12.7 mm (0.04 in to 0.5 in)
Easily adjustable span
Base lengths of 150 mm (6 in) and 300 mm (12 in)
