While China's exported steel pipes are frequently subject to foreign anti-dumping and countervailing investigations, imported steel pipes are also constantly impacting domestic steel enterprises.
Delivery status: to be delivered after heat treatment and leveling.
.The petrochemical industry, including the chemical fertilizer industry, has a great demand for stainless steel pipes. Stainless steel pipes are mainly used in this industry, including, 32, 34317l, etc., material transmission pipes, heat exchanger pipes, etc.
Ti-5a alloy with improved titanium and overall corrosion resistance has been used to manufacture u and Pu solution evaporation boilers and heat recovery evaporation boilers in Donghai reprocessing plant, Japan. In addition, because zirconium has stable corrosion resistance in the environment, zirconium is used in its continuous dissolution tank in the reprocessing plant in liusuo village, Aomori County Japan. The US Academy's ruling that the countervailing duty is not suitable for products from non market economy countries has just given China's steel pipe enterprises a little relief. The anti-dumping stick from the EU has given a heavy blow to hundreds of domestic stainless steel pipe manufacturers.
.Both ends of the steel pipe shall be cut into right angles and burrs shall be removed.
Steel strip material: different steel strip materials determine the quality of stainless steel, which is a major factor affecting the price of stainless steel at present.
No matter under dynamic load or static load, it has higher energy absorption capacity than austenitic stainless steel, which has obvious advantages and practical application value for structural parts to deal with sudden accidents such as collision, etc. Compared with austenitic stainless steel, duplex stainless steel has the following disadvantages: its universality and versatility are not as good as austenitic stainless steel. For example, buttress must be set through calculation.
Indicates that the chemical composition is represented by international chemical element symbols and national symbols, and the composition content is represented by letters: for example, China and Russia use fixed digit numbers to represent steel series or numbers; For example, the United States, Japan, 300 series, 400 series and 200 series; The serial number is composed of Latin letters and order, stainless steel etching belt, stainless steel stretching belt, stainless steel polishing belt, stainless steel soft belt, stainless steel hard belt, stainless steel medium hard belt stainless steel high temperature resistant belt, etc.
Customer first.Cold rolled oriented silicon steel strip consists of nominal thickness (expanded by 100 times) + code G: ordinary material, P: high oriented material + guaranteed iron loss value (the value after expanding the iron loss value when the frequency is 50Hz and the large magnetic flux density is 7T by 100 times). For example, 30g130 indicates that the thickness is 0.3mm and the guaranteed value of iron loss is ≤ 3 cold rolled oriented silicon steel strip. Liaocheng Suntory stainless steel provides electroplated tin plate and hot-dip galvanized plate: electroplated tin plate, electroplated tin sheet and steel strip, also known as tinplate. The surface of the steel plate (belt) is plated with tin, which has good corrosion resistance. In addition, it can be used as packaging material for cans, inner and outer sheath of cables, instrument and telecommunication parts, flashlight and other hardware.
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.
All decreased in varying degrees, with an average decrease of 7%. In terms of varieties, the prices of construction wire rod and rebar, which account for a large proportion of China's steel output, fell by 9% and 7% respectively, and the prices of medium and heavy plate and hot rolled coil fell by 7% and 7% respectively.
Stainless steel tubes can be found everywhere in our daily use. I believe many friends are asking why we have so many stainless steel tube products in our life. Therefore, xincoral Xiaobian will help you better understand the three characteristics of stainless steel tubes.
Direct labor.As we all know, stainless steel pipe has a strong ability of atmospheric oxidation and is not easy to rust under normal circumstances, & ldquo; Stainless steel pipe & rdquo; Hence the name of. But what I want to tell you today is that stainless steel pipes will also rust. I believe many friends will be surprised! I believe there are many people who don't know how to explain to customers! Next, let's popularize science!
Stainless steel is usually divided into 201 stainless steel pipe, stainless steel pipe and ferritic stainless steel according to the matrix structure. Chromium content 12% ~ 30%. Its corrosion resistance, toughness and weldability increase with the increase of chromium content, and its chloride stress corrosion resistance is better than other kinds of stainless steel.
Production and manufacturing can be divided into hot-rolled pipe, cold-rolled pipe, cold drawn pipe, pipe, etc.
.2 physical properties chemical composition C: it is specified in, when selecting the reasonable thickness of the steel plate, its service time quality and stiffness should be considered, in order to reduce carbon content by vigorously welding chromium carbon compounds at affected parts and the strength requirements of the plate under pressure should be considered; Thermal conductivity; Distribution of pressure and format specification of pressing plate.
D-outer diameter (mm) as stainless steel pipe for reprocessing device, or silicon and phosphorus content in Nb steel. In addition, in order to improve the corrosion resistance of ULC steel, the steel industry with phosphorus content below 0.015% is manufactured. After 20 times of 65% boiling corrosion test, it is found that if the corrosion degree of the solution treated material is less than 0.1mm/a, 650 ℃ & times; The sensitized material for 2h has excellent corrosivity when the corrosion degree is less than 0.2mm/a.