Stainless steel belt shape classification - 304 stainless steel bar
by:Hongmei
2020-09-14
Stainless steel belt can be divided into the coil plate, plate, profiles, steel pipe and parts five categories, one of the most important is the volume and plate.
Material is made of different shape of plate material, Angle steel, flat steel, i-steel, channel steel, steel rolling.
Steel tube is mainly refers to the seamless steel pipe and welded pipe, the main difference is whether a shape.
Parts is mainly refers to the pipe fittings, elbow, flange and other creatures.
Coil and plate is actually the same, the factory form different, coil is a roll of a roll, sheet is one of, if the factory is sheet, also known as the original plate, thick plate is commonly, because is very thick, can't roll, generally can't more than 16 mm rolls.
Volume, plate, and many times is plate, coil and plate price is not the same.
If they are purchasing volume, is according to the actual weight calculation, so the price is high, the board is in accordance with the theoretical calculation, the price is low, the reason is that there are the poor, such as actual may be 9 of 10 mm thick.
6 mm, it will be spread in the middle.
Stainless steel plate according to the mill (
Board of rolling mill is the name of the machine)
Rolling technology is different, divided into hot rolling and cold rolling.
Hot rolling is usually marked as NO.
1, cold-rolled labeled 2 b or BA (
BA is better than the surface of the 2 b, to bright, close to the mirror, mirror without spot needs to carry on the processing)
A lot of, such as 304 procurement board, that means that the volume must be by kaiping machine into board, in the form of this kind of machine is kaiping machine.
By kaiping kaiping machine can open into different length, if not normal length is set to open, which means opening size, because the customer according to actual needs, often put forward different requirement, the length of the roll is important at this time, the conventional plate can't meet the requirements.
Domestic general under 3 mm cold rolled, hot rolled in commonly more than 3 mm, 3 mm thickness of both hot, also have cold rolled, but imports manufacture thickness can reach below 4 mm or 6 mm below.
Hot rolled 3 mm to 12 mm plate is medium plate, more than 12 mm thick plate, can be to more than 120 mm thick, said of hot rolled plate, and cold is cold rolled sheet.