关键词: 0Cr13铁素体不锈钢, 冷拔工艺, 组织, 性能

Abstract: The Φ2.51mm cold-drawn rod of ferrite stainless steel 0Cr13 (/%: 0.03C, 0.43Si, 0.65Mn, ≤0.030P, ≤0.030S, 12.80Cr) is cold-drawn from Φ5.50mm hot-rolled coil annealed at 860°C for 2h by 5 and 7 passes. The effect of cold-drawing deformation, distribution of draught and cold-drawing passes on structure and properties of the steel is tested and studied. Results show that as total draught is more than 61.3% , the obvious fibrous structure occurs in steel；during cold-drawing process with increasing the draught, the of tensile strength of steel increases in three-stages, i.e. fast, slow and fast increasing；in first and second drawing passes, with equal draught the work-hardening of steel is more serious；with total draught 79.2% , the tensile strength of steel rod cold-drawn with 5 passes is high by 20MPa than that with 7 passes ； the suitable draught for beginning two passes is that first pass 35.1% and second pass 10.5% ; comprehensive considering from specific production condition, as compare 7 passes process the 5 passes process is more suitable to produce the Φ2.51mm products of steel 0Cr13.