Basics of Stainless Steel
Stainless steel can be divided into five categories: coils, plates, profiles, steel pipes, parts, and most importantly coils and plates. Profiles are the application of various shapes made of plates, such as angle steel, flat steel, I-beam, and channel steel.
Steel pipe usually refers to seamless steel pipe, and the tip of seamless steel pipe is welded pipe, the difference is whether it is formed in one piece. The most common are elbows and flanges and other small things.
The coil and the form are the same, but the form is different from the factory, if it is, it can not roll, in most cases, it can not roll more than 16 mm. There are rolls, plates, and multiple plates.
The price of rolls and plates also varies, if you buy a roll, it is based on the actual weight, so the price is high, the board is calculated according to theory, and the price is low, because how there is a difference. , such as 10mm thick can be 9.6mm, and there will be different values in the middle.
Stainless steel plate is divided into hot rolling and cold rolling according to different processes of rolling mill (rolling mill is the machine name of the rolling plate), hot rolling is usually marked as NO., near the mirror, the best is the mirror surface, the mirror surface is not in stock, it should be finished), for example, 304 usually buy board, which means the roll must be opened by the machine in the form.
on the flat board, this machine is a flat machine. It can be opened in different ways by opening the leveling machine, if it is not long, it is called a stable opening, which means the opening size, due to the user usually put in different lengths according to the actual need. time, the role is critical, the board can not meet the requirements.
Indoor cold rolled sheets are usually less than 3 mm, and hot rolled sheets are usually higher than 3 mm. There are hot rolled sheets and cold rolled sheets with a thickness of 3 mm, but the thickness of the cold rolled sheets can be. reach below 4 months or less than 6 months.
Hot plates rolled from 3 mm to 12 mm are called medium plates, and those higher than 12 mm are called thick plates, which can be thicker than 120 mm, and are also called hot rolled plates. medium and heavy, when the plate is cold-rolled. is cold-rolled thin plates.