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1020 Cold Rolled Steel (1020 CRS)

There are many different types of steel and various alloys and applications for each type. Generally steel is low cost and it is easy to finish with paint or other coatings. The term steel refers to iron whereby 0.02 to 1.7% carbon has been added. This makes steel a popular choice for many different types of products. Steel does however, have poor corrosion resistance. It is used commonly in the manufacturing of automobiles, homes, cutlery, appliances and magnetic cores just to name a few.

The numeric system that describes types of steel helps to determine the alloying ingredients by the first two digits of the alloy number, and the last two digits refer to the carbon content. Generally, as carbon is added, machinability and weldability decreases but strength increases.

In steel manufacturing, rolling is a forming process whereby metal materials are passed through a pair of rollers. Cold rolling is the process that occurs when the metal is below its recrystallization temperature. When the metal is higher than its recrystallization temperature it is referred to as hot rolling. There are different types of rolling; the most common are hot rolling and cold rolling. Rolling is classified according to the temperature of the metal rolled.

1020 Cold Rolled Steel is a plain carbon steel and has a nominal carbon content of 0.20% with approximately 0.50% manganese. Because of its chemical makeup 1020 Cold Rolled Steel has a good mixture of ductility and strength. It may be carburized or hardened.

Simple structural applications including cold headed bolts are often formed from Cold Rolled 1020 steel. It has 65% machinability and is readily weldible using standard methods.

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