Free Machining Plate

(Low & Medium Carbon)

C1119 Modified Free Machining Plate

C1119™ is an ideal grade for many applications requiring extensive machining and a smooth surface finish. It may also be flame hardened to locally improve surface properties. Improved machining characteristics reduce machining costs and residual stresses while improving surface finish in comparison to ordinary grades.

Free Machining Plate can be welded by the shielded metal-arc process using carbon steel, low-hydrogen type electrodes. Welding should be done in the as-rolled condition. Because of the high sulfur content in this free machining steel, porous welds may result if covered electrodes, other than those of the low-hydrogen type, are used. Care should be taken so that at the time of use, the electrodes are sufficiently low in moisture, hydrogen, or other hydrogen-containing contaminants to minimize development of excessive weld porosity.

TYPICALAPPLICATIONS

This plate steel was developed for applications requiring improved drilling, milling, boring, or shaping. These plate steels have been used in numerous applications, such as molds, rings, rolls, machine ways, platens, sprockets, fixtures, bushings, cams, die holders and threaded parts. Resulphurized steel generally exhibits lower ductility, toughness and weldability than structural steels. C1119/FM 15 Free Machining Plates are not recommended for structural applications.

C1119 is a low carbon resulphurized steel with a chemical composition as follow:

FM 15 Free Machining Plate

Free Machining Plate was developed for applications in which ease of machining is of prime importance. This product is a low-carbon, resulphurized, free-machining plate steel which is ideal for any application where fast, low-cost machining and a smooth finish are important.

Free Machining Plate

(Low & Medium Carbon)

C1144 Modified

C1144™ Modified offers higher strength and hardness and is applicable where resistance to deformation and wear are essential. It may be flame hardened to further enhance surface properties and frequently is used as an economical replacement for more expensive quenched-and-tempered alloy grades.

TYPICALAPPLICATIONS

Typical applications include cams, dies, gears, machine ways, molds, and sprockets.

Clean-Cut 20®

Developed in 1978, Clean-Cut® carbon steels provide free-machining characteristics and are available in two carbon levels as Clean-Cut® 20 and Clean-Cut® 45. Additionally, Clean-Cut®  steels are calcium treated to reduce the influence of oxide inclusions on tool wear. These steels are available in thicknesses up to 15 and can be inspected for internal soundness to ASTM A435 requirements when so specified. Used primarily in thicknesses greater than 6., these steels are used widely in manifold blocks and surface-critical mold applications.