Cold Rolled Steel Finish

This finish is especially suitable for paint adhesion.

Cold rolled steel finish.

One can easily recognize the difference in finish when comparing a cold finished bar to a hot rolled bar. Number 1 or matte dull finish. As such it is usually a bit more expensive. A hot rolled bar comes out of the mill with a rough abrasive discolored and dirty surface.

A hot rolled bar comes out of the mill produced at temperatures of 1600 f to 2200 f with a rough abrasive discolored and dirty surface. The surface finish tolerance straightness and consistency of cold rolled steel will always be superior to hot rolled steel. Product with 2b finish is normally supplied in the annealed plus lightly cold rolled condition unless a tensile rolled harder and stronger product is specified. If the cold rolled product was annealed it will be easier to work than hot rolled material.

Bright annealed ba finish a smooth bright reflective finish typically produced by cold rolling followed by annealing in a protective atmosphere so as to prevent oxidation and. When the steel cools off it will shrink slightly thus giving less control on the size and shape of the finished product when compared to cold rolled. This is because the steel at the mill is finished at temperatures upwards of 1600 f to 2200 f and at these high temperatures an iron scale. A finish without luster produced by rolling on rolls roughened by mechanical or other means.

Hot rolled products like hot rolled steel bars are used in the welding and construction trades to make railroad tracks and i beams for example. Cold rolled steel is also up to 20 percent stronger than hot rolled steel making it ideal for parts that require minimal mechanical fluctuation under pressure. Actual colors in finish may vary slightly from sample image shown. The finished material appears dark gray and has a smooth reflective surface that is resistant to corrosion thanks to a stable oxidation film on the surface of the finished steel.

Our blackened hot rolled finish is simple. We use hot rolled steel and clean the original mill scale of the steel to a blue black finish that has a clean durable classic industrial look. Choose from our selection of cold finished steel including low carbon steel sheets and bars multipurpose 4140 alloy steel bars and more. Cold rolled steel is defined as the group of steels which has been passed through a rolling mill below its recrystallization temperature.

In stock and ready to ship. It also aids in drawing by reducing the amount of contact and therefore the.