Stainless steel: how to obtain and the application

What is stainless steel?

What is stainless steel?

Steel - a carbon iron, which receives during quenching greater elasticity and firmness. In modern steel industry mainly smelt iron and steel scrap.

How are stainless steel?

In the steel compared to cast iron contains less carbon, silicon, sulfur and phosphorus. For steel from iron should reduce the concentration of substances by oxidizing melting.

In the modern steel industry, there are three modes of production were: open-hearth furnace, converter (design H. Bessemer or Thomas T.) and elektrostaleplavitelny. Open-hearth steel is the way to get that cast iron is refined in special (open hearth) furnaces, which are stationary and swinging.

Essence converter method of steel fabrication is that through the liquid iron, poured into the converter (a pear-shaped vessel), the bottom blown air, so burn out carbon and other impurities of iron. Ready metal is poured into the bucket and poured into a special form, called molds.

This method for producing steel has a number of advantages: high efficiency (the duration of melting of 30 - 40 min), compactness and simplicity of the device, the lack of fuel requirements for the process. Therefore, the cost of converter steel is low. However, converters, not used for important structures because of the increased content of its nitrogen, oxides of iron and phosphorus, deteriorate its quality. If instead of air when blowing liquid iron using oxygen, they receive the steel quality, not lower than the open-hearth. Converters, used for the manufacture of wire, small structural sections, welded pipes, bolts, roofing and sheet steel.

When elektrostaleplavitelnom way steel produced in special electric furnaces. This method of production is currently the most common.

Kinds of steel pipes

The following species of steel pipes: profile, seamless steel pipes, steel, corrosion-cold-hardy, tubing and other steel pipes used in construction, engineering, shipbuilding and other fields.

Stainless steel: how to obtain and the application

By: Aleksandr

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