24 July 2021 Free-Cutting Steel Bar
11SMnPB37 Free Cutting Steel Bar
11SMnPb37 is a German grade free-cutting steel. 11SMnPb37 free-cutting steel In steel to join a certain amount of one or more of sulfur, phosphorus, lead, calcium, selenium, tellurium and other cutting elements to improve the machinability of the alloy steel. Also known as automatic machine tool steel, referred to as automatic steel. These steels can be machined with higher cutting speeds and greater depth of cut. Due to the easy cutting elements added in the steel, the cutting resistance of the steel is reduced. Meanwhile, the characteristics of the easy-cutting elements themselves and the compounds formed lubricate the cutting tools, easily breaking chips and reducing the wear, thereby reducing the surface of the workpiece Roughness, improve tool life and production efficiency.
Chemical composition:
- Carbon C: ≤0.14
- Silicon Si: ≤0.05
- Manganese Mn: 1-1.5
- Phosphorus P: ≤0.11
- Sulfur: 0.34 - 0.4
- Lead Pb: 0.2 - 0.35