Cold Rolled Steel Finish

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.

Cold rolled steel finish.

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. Actual colors in finish may vary slightly from sample image shown. It also aids in drawing by reducing the amount of contact and therefore the.

One can easily recognize the difference in finish when comparing a cold finished bar to a hot rolled bar. 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. The surface finish tolerance straightness and consistency of cold rolled steel will always be superior to hot rolled steel. This finish is especially suitable for paint adhesion.

Our blackened hot rolled finish is simple. Cold rolled strip steel finishes are usually specified to one of the finishes below. 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. One can easily recognize the difference in finish when comparing a cold finished bar to a hot rolled bar.

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. In stock and ready to ship. A hot rolled bar comes out of the mill with a rough abrasive discolored and dirty surface. Choose from our selection of cold finished steel including low carbon steel sheets and bars multipurpose 4140 alloy steel bars and more.

If the cold rolled product was annealed it will be easier to work than hot rolled material. 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. 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. Cold rolled steel improved surface finishes tighter tolerances april 24 2017 definition.

Number 1 or matte dull finish. 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.