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12L14
12L14是,是易被(车、铣、拉、刨、钻等)切削加工的钢种,又叫自动机床加工用钢,简称自动钢。它是为适应机械加工自动化和流水作业线生产而产生的
中文名12L14类 型化学成分碳 C :<= 0.15等力学性能σb (MPa):540
用途
主要用于制作受力较小而对尺寸和光洁度要求严格的仪器仪表、手表零件、汽车、机床和其他各种机器上使用的,对尺寸精度和光洁度要求严格,而对机械性能要求相对较低的标准件,如齿轮、轴、螺栓、阀门、、销钉、、弹簧座垫及机床丝杠、塑料成型模具、外科和牙科手术用具等。
化学成分
碳 C :<= 0.15
锰 Mn:0.85~1.15
硫 S :0.26~0.35
磷 P :0.04~0.09
铅 Pb:0.15~0.35
力学性能
σb (MPa):540
σs (MPa):415
δ5 (%):≥10
断面ψ (%):≥35
硬度:≤170HV
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