we can process dia from 10mm-1600mm graphite rod, with low electric resistance, and high density. Physical and chemical proposions: Bulk DensityParticle sizecompressive strengthspecific electrical resistanceElastic modulusCoefficient of thermal expansionAsh(g/cm3)(mm)(Mpa)(μΩm)(Gpa)(10-6/degree)(%)≥1.682≥21≤8.5≤9.3≤2.9≤0.3≥1.680.8≥19≤7.8≤9.3≤2.9≤0.3≥1.582≥18≤10.5≤9.3≤2.9≤0.3≥1.720.8≥22≤7.5≤9.3≤2.9≤0.3 welcome to purchase from Tennry .