易切削钢化学成分表易切削钢(free cutting steel)是在钢中加入一定数量的一种或一种以上的硫、磷、铅、钙、硒、碲等易切削元素，以改善其切削性的合金钢，又称自动机床加工用钢，简称自动钢。这类钢可以用较高的切削速度和较大的切削深度进行切削加工。由于钢中加入的易切削元素，使钢的切削抗力减小，同时易切削元素本身的特性和所形成的化合物起润滑切削刀具的作用，易断屑，减轻了磨损，从而降低了工件的表面粗糙度，提高了刀具寿命和生产效率。 分类执行标准牌号化 学 成 分（%）CSiMnPSPb低碳快削钢GB国家标准Y120.08/0.160.15/0.350.70/1.000.08/0.150.10/0.20Low CarbonY12Pb0.08/0.16≤0.150.70/1.100.05/0.100.15/0.250.15/0.35Free CuttingY150.10/0.18≤0.150.80/1.200.05/0.100.23/0.33SteelY15Pb0.10/0.18≤0.150.80/1.200.05/0.100.23/0.330.15/0.35EN11SMnPb30≤0.14≤0.050.90/1.30≤0.110.27/0.330.20/0.35DIN11SMn37≤0.14≤0.051.00/1.50≤0.110.34/0.40欧洲11SMnPb37≤0.14≤0.051.00/1.50≤0.110.34/0.400.20/0.35德国标准10SPb200.07/0.13≤0.400.70/1.10≤0.060.15/0.250.20/0.35AISI1215≤0.090.75/1.050.04/0.090.26/0.35美国标准12L14≤0.150.85/1.150.04/0.090.26/0.350.15/0.3512L15≤0.090.75/1.050.04/0.090.26/0.350.15/0.35JIS日本标准SUM23≤0.090.75/1.050.04/0.090.26/0.35SUM23L≤0.090.75/1.050.04/0.090.26/0.350.10/0.35SUM24L≤0.150.85/1.150.04/0.090.26/0.350.10/0.35SUM25≤0.150.90/1.400.07/0.120.30/0.40中碳快削钢GBY40Mn0.37/0.450.15/0.351.20/1.55≤0.050.20/0.30Medium CarbonGBYF40MnV0.37/0.440.30/.0601.00/1.50≤0.0350.035/0.075V:0.06-0.13Free CuttingEN/DIN46S200.42/0.50≤0.400.70/1.10≤0.060.15/0.25SteelAISI11440.40/0.481.35/1.65≤0.040.24/0.33JISSUM430.40/0.481.35/1.650.040.24/0.33   钟石 销售部（经理） 无锡市中堃金属材料有限公司地址：中国江苏无锡市汇坚国际五金机电城1272号手机：18762806290电话：0510-83632686      传真：0510-83632656Q Q：1538349954           邮箱：zkjscl_910@163.com网址：http://zhongshi0910.cn.alibaba.com主营产品：冷作模具材料，热作磨具材料，塑料磨具材料，铜铝及其合金钢等网址：http://zhongshi0910.cn.alibaba.com