|
Solid wrought product of uniform cross-section along its whole length, supplied in straight lengths. Cross-sections
are in the shape of circles, oval, squares, rectangles, equilateral triangles or regular polygons. Products with
a square, rectangular, triangular or polygonal cross-section can have corners rounded along their whole length.
A definition of wire is just about the same as the definition for bar, in that wire can be almost any cross
section, but, unlike bar, wire can be round. The major difference lies in the fact that the minor dimension for
bar must be at least three-eighths of an inch (.375") while the major dimension for wire must be under
three-eighths of an inch.
Cold drawing is a process for finishing a hot rolled rod or bar at room temperature by pulling it through
the hole of a die of the same shape but smaller in size. The bars or rods are cleaned of scale by pickling or
other methods prior to cold drawing and then coated with lime which aids as a lubricant in the drawing operation.
|
