Features 1.Carbon-chromium spring steel. 2.Excellent toughness and high ductility. 3.High tensile-yeild ratio. 4.Suitable for oil hardening and tempering. Shape:steel plate/flat bar/round bar Technology:Hot work / Forged/cold drawn Heat treatment:Annealed / Q+T Surface condition:Black/Peeling/Polishing/Machined Delivery condition:Hot rolled or forged, Peeled or black surface Test:UT 100% / SGS Certification:ISO/mill certificate
