How to distinguish steel pipe material

How to distinguish between steel pipe material

Steel is a national construction and to achieve the four modernizations essential materials, widely used in a wide variety, depending on the cross sectional shape, steel is generally divided into four main categories of profiles, sheet, pipe and metal products, in order to facilitate the organization of steel production, ordering supplies and do a good job in management is divided into heavy rail, light rail, large steel, medium steel, small section steel, steel cold-formed steel, high quality steel wire rod, medium plate, thin steel plate, for electrical silicon steel strip , seamless steel pipe steel, welded steel pipes, metal products and other varieties.

First, steel production methods.www.steelpipechn.com

Most of the steel processing steel pressure processing, so that the processing of steel (billet, ingot, etc.) to produce plastic deformation. Two kinds of steel processing temperature steel with sub-cold and thermal processing. Steel processing methods:

Rolling: metal billets of steel roll (various shapes), a pair of rotating roll gap due to compression of the material cross section decreases, the length of the increased pressure processing methods, this is the most common mode of production in the production of steel, mainly used to the production of steel profiles, sheet, pipe. Divided into cold-rolled, hot-rolled.

Forging Steel: forging hammer back and forth the pressure of impact or press the blanks change into the required shape and size of a pressure processing methods. Generally divided into free and die forgings used in producing large profiles, cogging cross-section-foot steel-inch materials.

Drawing steel: is pulling aside the rolled metal stock (type, management, products, etc.) through die holes into the cross section decreases the length of processing methods are typically used for cold.

Squeeze: steel metal sealed squeeze Jane, one end put pressure on the metal extrusion from the provisions of the mold hole and get the same shape and size of finished product, the steel used for production of non-ferrous materials seamless steel pipe steel

Ferrous metals, steel and nonferrous metals before introduced the classification of steel to briefly introduce the basic concepts of ferrous metals, steel and steel and nonferrous metals.

1, black metal is an alloy of iron and iron. Such as steel, pig iron, ferro alloys, cast iron. Steel and pig iron are iron steel, carbon-add elements to the alloy, collectively known as the iron-carbon alloy. seamless steel pipe steel

Pig iron is the iron ore into the blast furnace smelting products, mainly used for steelmaking and steel manufacturing castings. Casting iron cupola in the melting, the cast iron (liquid), liquid cast iron is cast into the casting of steel, this cast iron is called cast iron.

Ferroalloy is an alloy of iron and silicon, manganese, chromium, titanium and other elements, iron alloy is one of the steelmaking raw materials, with steel steelmaking deoxidizer and alloying elements of steel additives.

2, steelmaking pig iron into steel-making furnace according to the certain process smelting steel. Steel ingot, billet and straight steel then cast steel castings. Usually steel, generally rolled into the steel of all kinds of steel. Steel steel are ferrous metals, but steel is not completely equal to the black metal.