Physical performance, 47kg/mm Extensibilit.,7% Yield point,g/mm2 escription of Magnalium leveling ruler Magnalium measuring too, Magnalium leveling ... magnalium wide-site square rulerPhysical performance, 47kg/mmExtensibilit.,7%Yield point,g/mm2Vickers hardness,V80Characteristics: Light weight, easy to ... mm2, general cast iron is 38kg/mm2. The yield point of this material can be reach to 110kg/mm2, the ...