Stainless stee
Stainless stee
Stainless steeThe existence of medium temperature brittle zone requires strict heat treatment and welding process system to avoid the appearance of harmful phase and damage the performance.
Chinese brand cold rolled non oriented silicon steel strip (sheet) means: DW + 100 times of iron loss value (at the frequency of 50Hz, the magnetic induction peak with sinusoidal waveform is the unit weight iron loss value of 5t) + 100 times of thickness value. For example, dw470-50 represents cold-rolled non oriented silicon steel with iron loss value of 7W / kg and thickness of 0.5mm. Now the new model is 50W470.
.After that, pharmaceutical industry and surgical equipment. Adding molybdenum makes it obtain a special corrosion-resistant structure. Because it has better chloride corrosion resistance than stainless steel pipe, it is also used as & ldquo; marine steel & rdquo;. SS is usually used in nuclear fuel recovery devices. Grade 1810 stainless steel Steel pipes usually also meet this application level.
Hot dip galvanized sheet hot dip galvanized sheet which immerses the sheet into the molten zinc bath to make its surface adhere to a layer of zinc. It is mainly produced by continuous galvanizing process, that is, and the cost of packaging requires labor costs, the sum of which exceeds the weight of a single bag.
The thickness of cold rolled steel strip is ultra-thin,304 stainless steel welded pipe, and the thickness of hot rolled steel strip is large.
Air pressure and water pressure test: conduct water pressure test for pressure resistant pipes one by one, and keep it for no less than 5 seconds at the specified pressure value. The water pressure test of conventional supply is 45MPa. The air pressure test is p = 0.5mpaa.
High pressure water jet cutting (professional water cutting: Shanghai Xinwei)
Stainless steel pipe packing bag is nothing more than the function of protecting the surface of stainless steel pipe, so most stainless steel pipe users do not have to question this point.
Stainless steel pipes are not easy to rust as long as they are not in particularly polluted places. 201 stainless steel is easy to rust. These two can be tested with magnet. They are not magnetic and can not be absorbed by magnet.
reform.Batch size: a small number of single batch products will affect the unit price.
For the length of welding arc 2 ~ 4mm is better for ordinary steel welding, and ~ 3mm is better for stainless steel welding. If it is too long, the protection effect is not good.
The folded stainless steel hot rolled strip is hot rolled into a strip with a thickness of 80mm-00mm and a width of 50mm-1200mm.
SPCC stainless steel belt is simply an extension of ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of industrialized production of various metal or mechanical products in different industrial sectors.
Honesty is the foundation.Classification and grading of standards 4-1 classification: national standard GB industry standard Yb local standard enterprise standard Q / cb4-2 classification: product standard packaging standard basic standard 4-3 standard level (divided into three levels): y level: international advanced level I level: international general level H level: domestic advanced level 4-4 national standard stainless steel bar (level I) gb4241-84 stainless welding disc Park (level H)
Chloride ions exist in the service environment. Chloride ions exist widely, such as salt, sweat, sea water, sea breeze, soil, floating rust of iron foam and so on. Stainless steel corrodes rapidly in the presence of chloride ions, even more than ordinary low carbon steel. Therefore, there are requirements for the service environment of stainless steel, and it is necessary to remove dust frequently and keep it clean and dry. (in this way,316L stainless steel coil, we can give him a & ldquo; improper use & rdquo;) there is an example in the United States: an enterprise uses an oak container to contain a solution containing chloride ions. The container has been used for nearly 100 years. The ninetieth generation of the last century plans to replace it. Because the oak material is not modern enough, the container leaks due to corrosion 16 days after it is replaced with stainless steel.
Cold formed alloys can be cut and cold formed. However, due to its high strength and hardness, springback should be fully considered.
.1: stainless steel plate: it can be divided into cold-rolled plate and hot-rolled plate. Its surface has bright surface, fog surface and matte surface. It is commonly known as stainless steel plate, including 2B plate and Ba plate. In addition, it can also be plated with other light colors according to customer requirements. The main specifications of plates are: 1m * 1m 1m * 2m, 22m * 44m, 5m * 3M, 5m * 6m. If customer demand is large, we can cut them according to customer size. In addition, we can replace wire drawing plate, anti sliding plate and electroplating plate
L stainless steel pipe has become a very popular material in the market because of its many advantages. Today, Xiaobian will tell you in detail about L stainless steel pipe installation technology.
Among the steel products exported by China, steel pipe has always been the focus of foreign anti-dumping and countervailing investigations. The Russian Ministry of industry and trade announced an anti-dumping investigation on China's cold-rolled stainless steel seamless steel pipes exported to the Russian Belarus Kazakhstan customs union. Before that, the Brazilian foreign trade chamber also said that it would impose an anti-dumping tariff of US $743 per ton (about RMB 4748 yuan) on China's steel pipe products, which is valid for five years.