Free-cutting steel

Automatic steel is a steel that is designed to form small chips when you answer and mill it. This increases the cutability of the material as smaller chips shorten the contact time between the chip and the cutting tool. This in turn leads to reduced friction and reduced heat energy transferred to the tool. The reduced heat supply leads to reduced wear on the tool.

By adding small amounts of lead and at the same time increasing the sulfur content slightly, the desired chip-breaking effect is obtained.

Euronom Executions Material Swedish standard ASTM, ASME AISI W.Stoff PDF Inquiry

20MnV6

1.5217

9SMnPb28 / 11SMnPb30

SS 1914~ 1.0718

9SMn28 / 11SMn28 / 11SMn30

1.0718