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Storage and maintenance of stainless steel

Stainless steel transport: transport the best use of transport, and supplemented by isolation facilities to reduce the air and dust on the corrosion of stainless steel products.Stainless steel strip

 

Stainless steel parts processing: for the original production of stainless steel, to a large extent need to be its second re-processing. In the processing should pay attention to the stainless steel processing area is relatively fixed, the stainless steel operating platform to be relatively isolated. Pay attention to the custom management of the stainless steel parts processing area to prevent damage to the stainless steel parts and corrosion.chapas de acero inoxidable medidas

 

Stainless steel welding: stainless steel is now the most important way of processing is cutting and welding. Stainless steel cutting and welding is the most common stainless steel processing, in the processing need to pay attention to forget the assembly, in the processing process to always pay attention to not cause pollution of stainless steel, or will seriously affect the life of stainless steel, causing corrosion. Welding as far as possible using argon arc welding. Weld joints to more repair mode.Катушка из нержавеющей стали, цена на сталь

 

In addition to the late-stage maintenance of stainless steel products, the quality of stainless steel in the production process for the quality of stainless steel also plays a vital role. High-quality stainless steel products allow you to reduce a lot of maintenance work later, and product quality is also high, long service life.ПОСТАВЩИК ЛИСТОВ ИЗ НЕРЖАВЕЮЩЕЙ СТАЛИ ИЗ КИТАЯ

304 stainless steel 2017 demand situation

China's stainless steel demand in the first quarter of 2017, only exports fell. According to the General Administration of Customs statistics, in the first two months of this year, exports of stainless steel 13.17 million tons, down 25.7%. However, China's indirect exports of stainless steel has a more substantial growth.Stainless steel strip

 

Statistics show that the main consumption of steel products, the first two months of this year, the national car (including chassis) exports 120,000, an increase of 37%; completed export ship 9,070,000 dwt, an increase of 127%. At the same time, the growth of domestic demand also make up for the decline of direct export decline, Chen Ke new that, overall, the first quarter of 2017 China's stainless steel demand growth, no reduction.chapas de acero inoxidable medidas

 

Prospects China's stainless steel demand situation in 2017, although the macroeconomic downward pressure is still, the four major risks of stainless steel market surging, but the steady growth of China's stainless steel demand pattern will not change. Катушка из нержавеющей стали, цена на сталь

 

It is expected that the apparent consumption of crude steel in China will increase by more than 6% in 2017, or even 10%, and the actual demand for stainless steel will increase by about 5%.aisi 304 4x8 stainless steel perforated sheet

High quality 420F martensitic stainless steel

Name: Martensitic stainless steel Standard: AISI, ASTM Model: 420FUNS Number: S42020 Features and applications: 420F stainless steel is improved 420J2 steel cutting performance of steel.Stainless steel plate and coil price

 

Chemical composition ①: C: 0.30 to 0.40 Mn: ≤ 1.25 Si: ≤ 1.00 Cr: 12.0 to 14.0 Ni ②: ≤0.50 P: ≤0.06 S: ≥0.15 Mo ③: ≤0.06Cold rolling TP304 grade stainless steel plate

 

Note: ① a single value, unless otherwise specified, are the highest value; ② for some pipe technology, some models of austenitic stainless steel nickel content must be slightly higher than the values shown in the table; Free; ④ the highest content of Ta content of 0.10%; ⑤ the highest content of 0.75%; ⑥ the highest content of 0.70%Stainless Steel Sheets

 

For more information on the properties of the steel, heat treatment process and application recommendations, as well as the latest product information consultation, please pay attention jawaysteel's website..Hoja de acero inoxidable Precio

Supply 420 stainless steel strip

The correlation between physical properties and temperature

(1) specific heat capacity

With the change of temperature than the heat capacity will change, but in the process of temperature changes in the metal structure in the event of phase change or precipitation, then the specific heat capacity will be significant changes.Stainless steel plate and coil price

 

(2) thermal conductivity

At 600 ℃, the thermal conductivity of various stainless steels is basically in the range of 10 ~ 30W / (m · ℃), and the thermal conductivity increases with the increase of temperature. At 100 ℃, the thermal conductivity of stainless steel from large to small order of 1Cr17, 00Cr12, 2Cr 25N, 0 Cr 18Ni11Ti, 0 Cr 18 Ni 9,0 Cr 17 Ni 12Mο2,2 Cr25Ni20.500 ℃ when the thermal conductivity from large to small In the order 1 Cr 13,1 Cr 17,2 Cr 25N, 0 Cr 17Ni12Mο2, 0Cr 18Ni9Ti and 2 Cr25Ni20. Austenitic stainless steel thermal conductivity is slightly lower than other stainless steel, compared with ordinary carbon steel, 100 ℃ austenitic stainless steel thermal conductivity of about 1/4.316 Stainless Steel Plate 2mm Thickness Price

 

(3) linear expansion coefficient

In the range of 100-900 ℃, the coefficient of linear expansion of various grades of stainless steel is basically 10 ~ 6 ~ 130 * 10 ~ 6 ℃ ˉ1, and increases with the increase of temperature. For the precipitation hardening type stainless steel, the linear expansion coefficient of the size of the aging treatment temperature to decide.Stainless Steel Sheets

 

(4) resistivity

At 0 ~ 900 ℃, the specific resistance of various grades of stainless steel is basically 70 * 10 ~ 6 ~ 130 * 10 ~ 6Ω · m, and increases with the increase of temperature. When used as a heating material, should use low resistivity material.Hoja de acero inoxidable Precio

Stainless steel rods 201 310 stainless steel rods

Jawaysteel company mainly produces the products are: stainless steel screw thread, spring wire, stainless steel round bar, hexagonal bar, four bar, stainless steel belt, stainless steel tube, material is divided into: sus310s, 316l, 316f, 316,321,303,304,302 , 301, 202, 201.stainless steel plate and coil price

 

All the raw materials are well-known brands at home and abroad, including domestic Baosteel, TISCO, Zhang Pu, Japan's Nippon Steel, South Korea's Pohang, Taiwan's new Rong, etc. As the market continues to increase competition, our production machinery and Manufacturing processes are in strict accordance with international standards, products in line with China gb, the United States astm, Japan jis and other norms, has been iso9001, is09002 certification, all manufactured products have rohs command sgs report and material proof.Stainless Steel pipe,Stainless Steel Coil

 

And the introduction of advanced production equipment, management experience and high-quality personnel to ensure that the quality of products produced by the market better than similar products, we have strict control of raw materials control system, the cost of our products to reduce the price The market occupies a great advantage, in order to make the provinces to provide convenience to customers, at present our factory has offices throughout the country.Stainless steel plate prices

 

The company has consistently adhered to the quality of the first customer first reputation so that we continue to develop the customer needs the product in the fierce competition in the market to get their own improvement and development. Warmly welcome all new and old customers inquiries or visit us!Best Quality Industrial Plastic Pallet

Stainless steel plate and carbon alloy steel plate

According to the Ministry of Commerce website news, the Ministry of Commerce Trade Relief Investigation Bureau Wang Hejun on the United States of China stainless steel plate and double anti-case and carbon steel plate double reverse damage to the final statement, said the US steel companies Business difficulties and China's exports are not related, the US ruling did not fully consider China to submit evidence, and the facts do not match, the Chinese side urged the United States to make an objective and impartial ruling. US Eastern Time March 3, the US International Trade Commission issued a notice that China's imports of stainless steel strip and carbon steel plate on the US industry caused substantial damage.Stainless steel plate prices

 

According to the Ministry of Commerce website news, the Ministry of Commerce Trade Relief Investigation Bureau Wang Hejun on the United States of China stainless steel plate and double anti-case and carbon steel plate double reverse damage to the final statement, said the US steel companies Business difficulties and China's exports are not related, the US ruling did not fully consider China to submit evidence, and the facts do not match, the Chinese side urged the United States to make an objective and impartial ruling.Stainless steel coils price

 

US Eastern Time March 3, the US International Trade Commission issued a notice that China's imports of stainless steel strip and carbon steel plate on the US industry caused substantial damage. Accordingly, the US Customs will be anti-dumping duties and countervailing duties on imports from China. Ministry of Commerce Trade Relief Investigation Bureau Wang Hejun Secretary made a statement on this.2b surface 304 stainless steel plate supplier

 

Wang Hejun pointed out that the US iron and steel enterprises operating difficulties mainly due to its obsolete equipment, resulting in low yield, and thus affect the profits, and China lost to the US stainless steel plate and carbon steel plate is not related. In fact, during the survey period, the US domestic market demand for these products increased, China lost the United States to meet the growing US market demand. China and the United States between the steel trade is complementary, China not only exports to the United States, but also from the United States imports of steel, the two sides have different products, use different. Wang Hejun said that the US ruling did not fully consider the large amount of evidence submitted by the Chinese industry, and the facts do not match. The Chinese side urges the US side to make objective and impartial judgments and avoid the negative impact on the normal economic and trade exchanges between China and the United States.316L stainless steel coil wholesaler supplier

Stainless steel channel quenching and heat treatment process

The purpose of heat treatment of stainless steel tube is mainly to change the metal matrix in steel pipe, improve the hardness of stainless steel tube. But can not fundamentally change the shape of steel pipe organization, and thus can not be more effective to improve the strength and toughness of stainless steel tube. Stainless steel tube quenching temperature should be selected in the actual critical temperature above 30-70 ℃, due to poor thermal conductivity of steel, holding time is generally about double the increase in steel. At the same time, in order to reduce the quenching stress, quenching should be pre-cooling in the air, quenching medium generally use oil, force to avoid quenching, you can also take early oil (cold to 200-300 ℃) air-cooled approach.Stainless steel plate prices

 

After quenching the stainless steel tube, the matrix structure can be martensite or talc, high temperature tempering into tempering sorbite, which is quenched and tempered, stainless steel tube tempering process and other steel pipe tempering is no essential difference , Stainless steel quenching should be timely tempering. Stainless steel pipe can also beothermal quenching. The isothermal quenching and cooling medium may be hot oil or nitrate, for example, at 830-870 ° C, heated and then quenched into 280-350 ° C nitrite. Alloy steel tube quenched and tempered or isothermal quenching, the mechanical properties of ordinary gray cast iron significantly improved.Stainless Steel Sheet Price In China

 

In order to improve the surface hardness and wear resistance of stainless steel tube, can be flame surface hardening, high frequency surface hardening and chemical heat treatment, including high frequency or intermediate frequency surface quenching applications up. High and medium frequency surface quenching with a short heating time, less oxidative decarburization, deformation is small, simple operation, etc., usually using the heating temperature of 850-950 ℃, because the stainless steel tube thermal conductivity is poor, the melting point is low, the heating rate should not be too fast, otherwise Prone to melting or cracking. High and medium frequency stainless steel pipe can not only improve the surface hardness and wear resistance, but also significantly improve the fatigue strength, increase the service life, in addition, machine tool rail contact surface heating is also a typical example of stainless steel surface hardening. In order to get a good matrix structure, to ensure that the mechanical properties of stainless steel tube and surface hardening can get a higher hardness, the surface heat treatment is best before the first normalizing or quenching and tempering treatment.stainless steel sheet and coil supplier

 

Stainless steel tube chemical heat treatment is the most nitriding, gas nitriding is in the 500-580 ℃ ammonia, nitriding time of about 50-90 hours, the general nitriding layer depth of 0.1-0.4 mm. Gas nitriding is best used with chromium, aluminum and molybdenum alloy steel pipe. Because chromium and aluminum can combine with nitrogen to form a stable hardness of the nitride, such as AIN, CrN, Cr2N, molybdenum can eliminate temper brittleness. Some stainless steel tube plant using salt bath active nitriding, the salt bath formula for the urea, sodium carbonate, potassium carbonate to 6: 3: 1 mixed melting, nitriding 60-180 minutes, that can get a certain thickness of the diffusion layer, Wear resistance and fatigue strength has improved significantly.2b surface 304 stainless steel plate supplier

Procurement of galvanized coil

For the hot-rolled steel market, galvanized coil spot different origin, the price varies, the quality is the same. So many times customers will shop around to find cost-effective galvanized coil.stainless steel sheet and coil supplier

Jawaysteel galvanized volumes of the market spot, now buy and sell, affordable, reduce costs for customers. And used customers know jawaysteel sales of galvanized coil is good and not expensive, affordable.Stainless Steel Sheet Price In China

The lowest price online galvanized volume may be two products, the agreement goods, should be in the online search business integrity, consider carefully before going to purchase. Jawaysteel companies to develop electronic trading platform to facilitate the bulk of the customer procurement, processing and order. Domestic first "plate matching processing" mode, for the majority of end-users with knives processing materials, greatly reducing the edge material loss!factory directly sale galvanized square pipe

Jawaysteel company not only has its own official website, but also set up shop in Alibaba. Online one-stop sourcing, jawaysteel integrity-based. Interested customers can go to jawaysteel's official website or to Alibaba search "jawaysteel" browse.Custom Industrial Reusable Plastic Pallets

Method for Identifying Thick Seamless Stainless Steel Seamless Steel

Thick-walled stainless steel seamless pipe is usually used in coal, mechanical processing and other industrial fields. This seamless steel pipe mainly cold drawing and hot rolling two kinds. There are five categories, namely, hot-rolled thick-walled seamless steel tubes, cold-drawn thick-walled seamless steel tubes, cold-rolled thick-walled seamless steel tubes and extruded thick-walled seamless steel tubes and pipe jacking. In the actual trading environment, thick-walled seamless steel pipe of varying quality, there are many fake and shoddy, this article is to introduce how to identify these fake and shoddy thick-walled seamless steel pipe.stainless steel sheet and coil supplier

 

Fake thick-walled seamless steel pipe prone to folding: the so-called folding refers to the thick-walled seamless steel tube stainless steel plate surface has a variety of polyline, this defect is usually vertical throughout the stainless steel tube. Folding is due to the pursuit of high production efficiency manufacturers, a large amount of pressure, resulting in ears, in the next rolling is easy to form a fold, folded stainless steel pipe will be cracking after bending, which will greatly reduce the thick-walled Strength of seam steel pipes.Top quality 200 series stainless steel bar

 

Fake and shoddy thick-walled seamless steel pipe surface often linen: Ma surface is due to rolling groove wear serious lead to the formation of thick-walled seamless steel pipe surface irregular irregularities. This is because the excessive pursuit of profits thick-walled seamless steel pipe manufacturers, rolling rolling over the standard does not change.2B finish stainless steel circle 430

 

Fake and shoddy thick-walled seamless steel pipe surface is easy to form scars: for two reasons, on the one hand is poor quality of thick-walled seamless steel pipe material is uneven, containing more impurities; followed by the manufacturer's poorly guided equipment, Easy to stick steel, making the impurities after the roll is easy to scar the surface of the stainless steel tube.25mm aluminum tube With Free Sample

Stainless steel industry ushered in the Internet "turning point"

It is understood that in recent years, China's stainless steel manufacturing industry has made rapid development. Data show that in 2005 China's stainless steel industry began to take off, an annual increase of 51.6%, and triggered the world's stainless steel production increased by 17%. But from 2014 onwards, China's stainless steel industry growth rate fell to 14.27%8 inch schedule 40 galvanized steel pipe price per meter

 

At the same time, with the last two years, "Internet +" policy in various sectors of the implementation of the stainless steel industry is facing the challenges of transformation and innovation. Industry sources, the Internet "turning point" is to further activate the stainless steel manufacturing industry once again the opportunity to take off, the market appears to find steel network, Harrow stainless steel, steel mesh and other electronic business platform has begun to highlight the advantages of the new era of manufacturing development.Chemical Composition Of Stainless Steel Grade 201

 

Specifically, although the past decade China's stainless steel industry due to policy, the international market environment and other factors to promote a broad development prospects, but the industry competition is becoming increasingly fierce, the traditional trading chain has been unable to get through the last Km "problem. Popular speaking, the upstream and downstream stainless steel manufacturing profit pressure, while the extensive production model has been unable to adapt to the current urbanization, the pace of development of the manufacturing industry. Observers pointed out that the current real estate industry hot or will touch the stainless steel market demand, but how to quickly achieve manufacturing transactions, production targets for the stainless steel industry is also worth considering, "Internet +" ideas should be a direction.stainless steel suppliers,stainless steel sheet

 

The industry also predicted that, due to China's eastern, central and western economic development is not balanced, coupled with long-term planning and market aggregation effect of other factors, China's stainless steel industry is currently concentrated in the eastern and southern China and other economically developed areas, The lack of stainless steel supply in the west. If the inflection point in the Internet to break the geographical constraints of the supply and demand imbalance in the field, will be near to meet the "along the way" driven by the Midwest market has a favorable impact on the huge demand.321 and 304 Stainless Steel Sheets