Performance supplement: main components: 22cr-3ni-2mo-0.16n; national standards: NAS 329j3uns S3 / s3180din / en 446astm a240, ASME sa-240; mechanical properties: tensile strength: & sigma; B & Ge; 0mpa; elongation: & Delta; & Ge; 25%; typical working conditions: 20% dilute, below 60 ℃, annual corrosion rate & amp; lt; 0.1mm; supporting welding wire: er2209. Weight (kg) = length (m) * width (m) * thickness (mm) *Density value specific gravity of stainless steel: ● chromium stainless steel is 75t / m3 ● chromium nickel stainless steel is 93t / m3 ● iron is 87T / m3. Theoretical weight calculation formula of stainless steel plate: Steel theoretical weight length (mm) & times; width (mm) & times; thickness (mm) & times; density value = weight (kg) Stainless steel plate, stainless steel, duplex stainless steel, stainless steel material, Swedish stainless steel brand. The difference between duplex stainless steel plate and austenitic stainless steel plate is that the yield strength is higher than that of ordinary austenite
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.
.W = (outer diameter wall thickness) & times; wall thickness & times; 0.02491 = KGM (weight per meter).
Doing well in marketing strategy innovation is a very key factor for every manufacturer joining stainless steel pipe to realize the marketing effect of market competition; However,304 stainless steel strip, due to the different characteristics of each market, stainless steel pipe manufacturers need to make different marketing strategy adjustments; As the saying goes, & ldquo; No matter what kind of cat it is catching mice is a good cat& rdquo; Professional projects include: stainless steel plate, stainless steel coil, stainless steel belt, stainless steel pipe and other related businesses. Merchants who hope to have this business please. This is also true in the marketing strategy. Therefore, manufacturers of stainless steel pipes need to make marketing innovation at any time to match the changing market conditions.
.Hot rolled belt, 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.
In addition to common scenes in life, stainless steel is also used in some high-end machinery fields, such as food industry, chemistry, medical devices, aircraft exhaust pipes etc. It can be seen that stainless steel has been widely used in heavy industry, light industry, daily necessities industry, architectural decoration and other industries. Due to the superior performance, the professional L stainless steel pipe, s stainless steel pipe and 904L stainless steel pipe have advanced technology, strict testing, more affordable price and more preferential. Consultation is welcome. The market of stainless steel is destined to be sesame blossom and higher!
In conclusion, when calculating the approximate weight of stainless steel pipe and multiplying it by the unit price, the price of 6m stainless steel pipe can be roughly obtained, which can be used in the project budget.
(V) the profitability of the steel plant has declined month by month. In the first half of 2013, the metallurgical industry realized a profit of 73.9 billion yuan, a year-on-year increase of 7%, of which the ferrous metal smelting and rolling processing industry realized a profit of 45.4 billion yuan, a year-on-year increase of 27%. From January to may, the profitability of key large and medium-sized iron and steel enterprises was far lower than the overall level of the industry, and showed a downward trend month by month. Although the profit increased by 34%, it was only 2.8 billion yuan with a profit margin of 0.19%. In May, 86 key large and medium-sized iron and steel enterprises realized a profit of only 500 million yuan, falling month on month for five consecutive months, of which 34 suffered losses, with a loss surface of 40%.
Hardness test: annealed stainless steel pipes with inner diameter of more than 0mm and wall thickness of less than 13mm can be tested by w-b75 Vickers hardness tester, which is very fast and simple, and is suitable for rapid and nondestructive qualification test of stainless steel pipes. For stainless steel pipes with inner diameter of more than 30mm and wall thickness of more than 2mm, Rockwell hardness tester shall be used to test HRC hardness. Stainless steel pipes For stainless steel pipes with inner diameter greater than 30mm and wall thickness less than 2mm, the surface Rockwell hardness tester shall be used to test HRT or hrn hardness. For stainless steel pipes with inner diameter less than 0mm and greater than 8mm, the special Rockwell hardness tester for pipes shall be used to test hr15t hardness. When the inner diameter of stainless steel pipes is greater than 26mm,Stainless steel water supply pipe, the Rockwell or surface Rockwell hardness tester can also be used to test the hardness of pipes.
Cold rolled steel strip for deep drawing is a low-carbon high-quality carbon structural steel cold-rolled steel strip for deep drawing complex drawing parts.
Inspection standard.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.
Batch size: a small number of single batch products will affect the unit price.
Choose the price.
3: stainless steel rod: round rod hexagonal rod, square steel, hexagonal angle steel, round steel, solid rod. Hexagonal rod and square steel (flat steel) are more expensive than round rod (most of the hexagonal rod specifications are imported high-quality materials). The bright surface is more expensive than black leather surface. Large diameter bars are mostly black leather rods. 303 is a unique material in bars, It is mainly used for self cutting. In addition, 304f.303cu.316f also belong to easy cutting materials
ranking.The dual phase microstructure of stress corrosion resistant stainless steel is helpful to improve the stress corrosion cracking resistance of stainless steel. In the presence of certain temperature,SUS302 stainless steel belt, oxygen and chloride, chloride stress corrosion will occur in austenitic stainless steel. Since these conditions are not easy, the use of L and 317L is limited in this regard.
The main way to prevent stress corrosion of austenitic stainless steel is to add SI2 ~ 4% and keep the content of N below 0.04% from smelting. In addition, the content of impurities such as P, Bi and as should be reduced as much as possible. In addition, A-F dual phase steel can be selected, which does not correspond to stress corrosion in Cl - and oh - media. The initial micro crack will not continue to expand after encountering ferrite phase, and the ferrite content should be about 6% .
2020303043310s, 331632404420, 430 and other materials.
.HL polishing with appropriate particle size abrasive material to make the surface show continuous grinding lines.
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.
The specification and appearance quality shall comply with the provisions of gb14975-2002 stainless steel seamless steel pipe. The steel pipe is usually 5 ~ 10m long (indefinite length) hot rolled steel pipe, 0 ~ 7m; the wall thickness is greater than 0mm, 5 ~ 8m.