http://www.ec21.com/ec-market/steel bar f11.html http://kumwooltd.en.ec21.com/Material--1477083_1477716.htmlSteel : A182(F1, F12, F11, F22, F5, F9, F91) Application Code ASME ASTM JIS DIN UNS KS Forged Products : Bar, Bushing,20090818 http://rolexmetal.en.ec21.com/42CrMo4_42CrMoS4_Din_1.7225_Forged--2608939_3592429.html 42CrMo4 / 42CrMoS4 Din 1.7225 Forged Round Bar We are Stockholder & Distributors of AISI 1045/SAE 1045, AISI 420090606 http://steelvalves.en.ec21.com/Scoket_Welding_Elbow_Scoket_Elbow--2764488_2768649.htmlF11, F22, F91), GB/T 699 20Mn. 3. SIZE OF RAW MATERIAL: DIA. 19-85MM ROUND BAR. MARKING: 1. CARBON AND ALLOY STEEL: MAR20080425