A, section steel
Common section steel are round steel, square steel, flat steel, hexagonal steel, octagonal steel, I-beam, channel steel, angle steel, profiled steel, coils and so on. Each type of steel specifications have a certain method of expression.
The specifications of round steel diameter, such as round steel φ20mm.
The specifications of the square steel "side length × side length", such as the square steel 20mm × 20mm.
The specifications of the flat steel "side width × side thickness
The specifications of I-beam and channel steel are expressed as "height×leg width×thickness", such as I-beam 100mm×55mm×405mm,
Channel steel 200mm×75mm×9mm.
The specifications of equal-edge angle are expressed as "side length×side length", such as square steel 20mm×20mm.
The specifications of flat steel are expressed as "side width×side thickness", such as square steel 20mm×10mm. p>
Equal angle specifications to "side width × side width × side thickness";
Unequal angle specifications to "long side width × short side width × side thickness", such as 80mm × 50mm × 6mm.
Second, Steel plate
Steel plate is usually divided into thin plate (thickness ≤ 4mm), thick plate (thickness > 4mm) and steel strip. Thick plate by hot-rolled, thin plate has two kinds of hot-rolled and cold-rolled. Sheet can be hot-dip galvanized, electroplated tin and other treatments, made of galvanized sheet steel (commonly known as white iron) and tin-plated sheet steel (commonly known as tinplate). Steel strip is a thin thickness, narrow width, long length of steel plate, also divided into hot-rolled and cold-rolled two kinds.
Third, steel pipe
Steel pipe is divided into seamless steel pipe and welded steel pipe, the section is mostly round. Seamless steel pipe specifications to "outer diameter × wall thickness × length" that, if no length requirements, only write "outer diameter × wall thickness".
Fourth, steel wire
There are many types of steel wire, its specifications are expressed in diameter.
There are many types of wires, and their specifications are expressed in terms of diameter.