Difference between free-cutting steel and No. 45 steel

Free cutting steel and 45 gauge steel are both carbon steels.

Free Cutting Steel is an alloy steel in which a certain amount of one or more of sulfur, phosphorus, lead, calcium, selenium, tellurium and other cutting elements are added to the steel to improve its machinability. With the automation of cutting, high-speed and precision, the requirement of steel with good machinability is very important, this type of steel is mainly used for automatic cutting machine tool processing, so also belongs to the special steel.

No. 45 steel will not be added to the alloying elements, and has a certain degree of plasticity and strength, surface hardness is relatively low, can be tempered by heat treatment to improve the hardness. Can be used for gears, threshing drums, shafts, clamp tool manufacturing, the use of life is relatively wide range.

Changzhou Tenjan Steel Tube Co., Ltd. is a seamless steel tube manufacturing factory with 20 years of experience in tube making, and can produce both seamless steel tube of No. 45 steel andfree-cutting steel tube. The price of free-cutting steel tube will be more expensive than No.45 steel tube, but the free-cutting steel tube can reduce the loss of material drilling and save the cost of configuring processing machinery, which is suitable for mass production of workpieces that do not require high performance.