... ruler,magnalium wide-site square rulerPhysical performance, 47kg/mmExtensibilit.,7%Yield point,g/mm2Vickers hardness,V80Characteristics: Light weight, easy to use, ... projects .(3)Merit of magnalium measuring tool Not deformation: Yield point of general steel material is 30kg/mm2, general cast iron ... is 38kg/mm2. The yield point of this material can be reach to 110kg/mm2, the ...