Classification of steel

classification of steel
profiles, sheet, pipe, metal products, steel shape can be divided into four main categories. In order to facilitate the procurement, ordering and management, steel is divided into the 16th National Congress varieties:
category	varieties	Description
profiles	heavy rail	weight greater than 30 kg per meter of rail (including the crane rail).
	light rail	per meter weight less than or equal to 30 kg rail.
	large steel	ordinary steel round bar, square steel, flat steel, six angles, the word steel, channels, equilateral and scalene angle iron and rebar and other. Divided into large, medium and small size.
	medium section
	small section
	wire	5-10 mm diameter round bar and wire rod.
	cold-formed steel	steel or steel cold roll forming made of steel.
	quality profiles	high quality steel round bar, square steel, flat steel, six angle steel.
	other steel	including heavy rail accessories, billet axles, tires, etc..
sheet	metal products	including wire, wire rope, strand.

steel sheet
thickness equal to and less than 4 mm steel plate.


thick steel plate
greater than 4 mm thick steel plate can be divided into panels (thickness greater than 4mm less than 20mm , plate thickness greater than 20mm less than 60mm), special plate (thickness greater than 60mm).


strip
also known as the strip, in fact, is long and narrow and into volume supply of steel sheet.


electrical silicon steel sheet
also known as silicon steel or silicon steel.


pipe
seamless steel pipe
rolled, the wall of the hot - cold drawing or extrusion methods such as the production of seamless steel pipe.


welded steel
plate or strip curled shape, then welded steel pipe made of.

metal products