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Free-Machining Stainless Steel Wire

Free-Machining Stainless Steel Wire

Stainless steel wire with high machinability for improved productivity in machining operations is generally referred to as “Free-machining” stainless steel wire.

Such high machinability stainless steel wire results from special and controlled additions in the stainless steel, particularly Sulphur.

Smaller diameter (< 0.30”) free machining stainless steel wire, in cold drawn condition, is often called “Escomatic free-machining” stainless steel wire, in reference to the “Escomatic” modern machines used for their machining into parts. Specific free-machining stainless steel grades are Austenitic 303, Ferritic 430F and Martensitic 416.

Free-machining stainless steel wire provides an excellent machinability, in either of the following conditions :

  • Cold drawn
  • Annealed

This type of wire provides a good combination of corrosion resistance and improved machinability due to selective & controlled additions.

Thus, such so-called “ free-machining “ stainless steel wires are used in all machining operations using high productivity modern multi-tool CNC equipments for a large array of machined parts such as

  • Household appliances & equipments
  • Hardware parts
  • Electronics & connectors precision parts

According to standards : 

  • ASTM A581
Grades* 302, 303, 303Cu, 304L, 304LCu, 316, 416, 420A, 420B, 420C, 420CF, 430F
EN 10088-3* 1.4310, 1.4305, 1.4570, 1.4307, 1.4567, 1.4401, 1.4005, 1.4021, 1.4028, 1.4034, 1.4035, 1.4104
Diameters : mm / inch  1.00 to 8.00 mm / .039'' to .315''
Packaging Coils

* See correspondence EN/AISI : data sheet for grades