... 55SiMnVB, 60Si2Mn, 60Si2MnA, 60Si2CrA, 60Si2CrVA Spring steel Dimensions: 10-300mm Hot rolled spring steel 65#GradeCSiMnPSCrNi65#0.62 0.700.17 ... 30W4Cr2VAGrade: 55Cr3, 51CrV4, 60Si2Mn4 etc.Dimension Rounds: Hot rolled dia.11-90mm, Cold drawn dia.5-50mm Flats: 6 ... condition: EAF+LF+VD, Hot rolled / Cold drawn, Black / PeeledApplication: Auto manufacture, spring wireWith the short stress production line ...