EN-10305-1-E255-Steel-Pipe-Specification

Carbon Steel Pipe and Alloy Steel Tube Manufacturers and SuppliersEN 10305-1 E255 Steel Pipe SpecificationEN 10305-1 E235 is a cold-drawn seamless precision non-alloy steel tube with an outsidediameter D s 380 mm and containing a maximum of 0.17 carbon and 1.20 manganese,withprecisely defined tolerances and specified maximum surface roughness,commonly used in theautomotive,furniture and general engineering industries.The steel number is 1.0308.女Manufacture ProcessEN 10305-1 E255 shall be manufactured from hot-finished seamless steel tubes by colddrawing.女DimensionOutside diameter:4-380 mm:Wall thickness:0.5-25 mm;女Delivery ConditionsSymbolDesignationDescription+CCold drawn (hard)No final heat treatment after final cold drawing.+LCCold drawn (soft)Final heat treatment is followed by a suitable drawing pass(limited reduction of area).+SRCold drawn and stress relievedAfter final cold drawing the tubes are stress relieved in a controlled atmosphere.+ASoft annealedAfter final cold drawing the tubes are soft annealed in a controlled atmosphere.+NNormalizedAfter final cold drawing the tubes are normalized in a controlled atmosphere.女Chemical ComponentsChemical composition (cast analysis)%by massSteel gradeMn⊙E2550.21 max0.35 max0.40-1.100.025max0.025maxWhatsApp:008613463768992 Email:sales@botopsteelpipes.com Website:www.botopsteelpipes.com