Angle iron

Angle iron

Angle steel, commonly known as Angle iron, is a long strip of steel that forms an Angle perpendicular to each other. Angle steel has equal and unequal Angle steel. Both sides of an equal corner are equal in width. Its specifications are expressed in millimeters of side width x side width x side thickness. For example, "30×30×3" refers to an equal Angle steel with a side width of 30 mm and a side thickness of 3 mm. It can also be represented by the model number, which is the centimeter of the side length, such as 3#. The model does not represent the size of different side wall thicknesses in the same model, so the side width and side thickness dimensions of the Angle steel are filled in the contract and other documents to avoid being represented by the model alone. Hot-rolled equal-edge Angle steel specifications are 2# - 20#. Angle steel can be composed of various stress components according to the different needs of the structure, and can also be used as a connection between components. It is widely used in various building structures and engineering structures, such as beams, Bridges, power transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container shelves and warehouses.

Angle steel belongs to the carbon structural steel used in construction. It is a simple cross-sectional steel, mainly used for metal components and frames of factory buildings. It is required to have good weldability, plastic deformation performance and certain mechanical strength in use. The raw steel billet for producing Angle steel is low carbon square billet, and the finished Angle steel is delivered in hot rolled, normalized or hot rolled state.

Type specifications.

It is mainly divided into two kinds of equal Angle steel and unequal Angle steel. The non-equilateral Angle steel can be divided into two kinds: non-equilateral and unequal thickness.

The specifications of the Angle steel are expressed by the dimensions of the side length and the side thickness. At present, the domestic Angle steel specifications are 2-20, and the side length is numbered in centimeters. The same Angle steel usually has 2-7 different side thicknesses. The imported Angle steel indicates the actual size and thickness of both sides, and indicates the relevant standards. Generally speaking, the side length of more than 12.5 cm is large Angle steel, the side length between 12.5 cm and 5 cm is medium Angle steel, and the side length below 5 cm is small Angle steel.

Import and export Angle steel orders are generally based on the specifications required in use, and the steel grade is the corresponding carbon steel grade. It is also an Angle steel with no specific composition and performance series except the specification number.

The delivery length of Angle steel is divided into two kinds: fixed length and double length. The selection range of domestic Angle steel fixed length has four ranges according to different specifications: 3-9m, 4-12m, 4-19m, 6-19m. Angle steel produced in Japan has a length selection range of 6-15m.

The section height of the unequal Angle steel is calculated according to the long side width of the unequal Angle steel. Steel having angular cross sections and unequal sides. It is a kind of Angle steel. Its side length ranges from 25 mm x 16 mm to 200 mm x 125 mm. It is made by hot rolling mill. The general specification of unequal Angle steel is: 50*32--∟200*125 thickness is 4-18 mm.

Unequal Angle steel is widely used in a variety of metal structures, Bridges, machinery manufacturing and shipbuilding, a variety of building structures and engineering structures, such as beams, Bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container shelves and warehouses.

Normative standards.

GB/T2101-2008 (General requirements for acceptance, packaging, marking and quality certificates of section steel).

Computer] Gigabyte /T706-2008 (instead of GB/T9787-88) (hot rolled equal/unequal Angle steel dimensions, shape, weight and allowable deviation).

JISG3192-94 (Outer Dimension Weight and allowable deviation of hot rolled section steel)

DIN17100-80 (Quality standard for common structural steel)

Ordinary carbon steel technical conditions.

According to the provisions of the above standard, the Angle steel shall be delivered in bundles, and the bundling pass and bundling length shall meet the provisions. Angle steel is generally naked, transport and storage should pay attention to moisture.