HRPO Steel – Hot Rolled Pickled and Oiled Steel
The process of pickling and oiling steel aides in rust prevention.
Hot rolled pickled and oiled steel is required when a uniform and clean surface is needed. Hot rolled pickled and oiled steel is typically flat. The pickling process removes the scale from the hot rolled steel surface by for applications that require a clean, uniform surface and good flatness. The pickling process removes scale from the hot rolled sheet surface by utilizing water and other inorganic solutions at the mill. After the scale is removed, an oil film is applied to guard against rust.
The term steel refers to iron whereby 0.02 to 1.7% carbon has been added. 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. This makes steel a popular choice for many different types of products. It is used commonly in the manufacturing of automobiles, homes, cutlery, appliances and magnetic cores just to name a few. Steel does however, have poor corrosion resistance.
In steel manufacturing, rolling is a forming process whereby metal materials are passed through a pair of rollers. There are different types of rolling; the most common are hot rolling and cold rolling. When the metal is higher than its recrystallization temperature it is referred to as hot rolling. Rolling is classified according to the temperature of the metal rolled. Cold rolling is the process that occurs when the metal is below its recrystallization temperature.
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.
Hot rolled steel is generally used in parts where rust proofing is not critical. Though the process of pickling and oiling steel does aid in rust prevention. This process is sometimes referred to as HRPO.
In addition to custom slitting metals, other services provided by Consolidated Metal Service, Inc. include:
- Cold Rolled Steel Edging – removing slitting burrs from the edge of steel coil and rolling the edge into a desired shape.
- Cold Rolled Steel Toll Processing – slitting and edging your coiled metal inventory which you can drop-ship to our location.
- Local & Cross-Country Shipping – providing local delivery with our own fleet and cross-country shipping through national providers.
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