... Standard:ASTM B348/265,ASTM F136/67 ISO9001:2000 titanium square barMaterialpure titanium and titanium alloy GradeGr1,Gr2,Gr3,Gr4,Gr5 ... advantage is following:-competitive price,because we are factory.-good quality on the base of same price.-shipment is on time ... time!I'm looking forward to hearing your inquirty. titanium square bar/rod