Y12易切削钢Y12复合低碳圆钢 Y12冷拉钢
Composite low carbon free cutting steel, it is most of the phosphorus content in existing free-cutting steel a, steel has obviously improved machinability is 15th. Steel mechanics performance has obvious anisotropy, cold drawn steel longitudinal mechanical properties close to 15 cold-drawn steel, often instead of 15 steel manufacture for various parts of the mechanical properties requirements is not high, such as bolts, nuts, pipe fittings and spark plug pin, shaft, coat, etc.
复合低碳易切削钢,是现有易切削钢中含磷量X多的一种,切削性较15号钢有明显改善。钢材的力学性能有明显的各向异性,冷拉钢材纵向力学性能与冷拉15号钢接近,常代替15号钢制造对力学性能要求不高的各种零件,如螺栓、螺母、销钉、轴、管接头及火花塞外套等。
详细描述:化学成份:
碳 C :0.08~0.16
硅 Si:0.15~0.35
锰 Mn:0.70~1.00
硫 S :0.10~0.20
磷 P :0.08~0.15
力学性能:抗拉强度 σb (MPa):(热轧)390~540; (冷拉)钢材厚度或直径 8~20时:530~755; >20~30时:510~735; >30时:490~685
伸长率 δ5 (%):(热轧)≥22;(冷轧)≥7.0
断面收缩率 ψ (%):(热轧)≥36
硬度 :(热轧)≤170HB;(冷拉)152~217HB 热处理规范及金相组织:
交货状态:以热轧或冷拉状态交货,交货状态应在合同中注明。