Free Machining Stainless Steel Grades

Free machining steel with lead also allow for higher machining rates.

Free machining stainless steel grades. European steel numbers for these grades are listed and include 1 4005 1 4006 1 4021 1 4028 1 4029 1 4031 1 4057 1 4112 1 4125 1 4542 1 4305 1 4307 1 4541 1 4401 and 1 4404. Actually there are approximately 150 separate and distinct compositions each one formulated to serve specific end use and or manufacturing requirements. Stainless steel known primarily for its corrosion resistance is used in a wide variety of applications the diverse range of grades allows it to accommodate various applications across many different industries. Free machining stainless steels grades.

Free machining of stainless steels can be greatly improved by changing the alloying elements within the composition but without drastically changing the basic property characteristics of the material. When cutting most types of steel in a lathe or milling machine the chips tend to come off in long curling strands. Contain chrome nickel manganese belongs to austenitic stainless steel. Free machining steel is steel that forms small chips when machined.

However having so many grades requires the know how to select the appropriate one for the job. For instance one of the most commonly used free machining steel grades is 12l14 bar. The traditional free machining stainless steel grades have been based on sulphur s additions in the uk or alternatively selenium se additions which have been favoured in the united states. Steel that breaks into small chips in cutting operations resulting in an increase in machinability a superior surface finish and long tool life.

Partial list of aisi sae steels showing the free machining grades. Some exceptions to the rule can include free machining grades with high sulfur levels which can lead to a reduction in ductility. It has good malleability and applied in forming products. Free machining stainless steels grades introduction.

Sulphur selenium and calcium treated improved machinability stainless steels are compared. The addition of these elements is in the region of 0 15 0 35. Contain chrome nickel also belongs to austenitic stainless steel. This can be.

If the steel contains lead it will be designated with the letter l after the first two numbers in any steel designations. Reference to stainless steel is often made in the singular sense as if it were one material. It can also be quickly hardened by machining. Stainless steels are only one segment of the steel spectrum but they.

200 series stainless steel.