YYU Extensometer

Introduction:
YYU series are mainly used for axial deformation test, such as elastic modulus E, specified non-proportional extension strength Rtxx, specified total extension strength Rpxx, various elongation, strain hardening index N and other parameters. YYJ series is mainly used for fracture mechanics and transverse or radial deformation testing, such as Poisson’s ratio U, plastic strain ratio R, Kic, COD and other parameters.