... Surface :Black or Bright Specifiaction Descriptionsteel bar, steel round bar, steel bar, round bar,barMaterial201,202,304,304L,309S,310S,316 ... 4mm to 350mmLength6m,4m or as your requirementApplicationSteel bar applies to petroleum, chemical industry,electric power, boiler ... 420 SUS420J1 X20Cr13 9Cr18MoV 440B SUS440B X90CnMoV18 0Cr17Ni7A1 17-7PH(631) SUS631 X7CrNiAl17.7 1Cr18Ni9 302 SUS302 Y1Cr18Ni9 ...