Shanghai Katalor Enterprises Co.,Ltd

Some important information about P265GH steel pipe in Katalor  Application of P265GH steel pipe for pressure purposes: it is mainly used to for manufacturing boilers, pressure vessels and pipes transporting hot liquids. The following are P265GH steel pipe for pressure purpose’s chemical composition and mechanical properties. P265GH steel pipe for pressure purposes chemical compositions: Grade C Mn S N Cu Nb Ti P265GH 0.20 0.80-1.40 0.015 0.012 0.30 0.020 0.03 Si P Al Cr Mo Ni Vi 0.40 0.025 0.020 0.30 0.08 0.30 0.02 P265GH steel pipe  for pressure purposes mechanical properties: Grade Type Thickness mm Yield strength Mpa(min) Tensile strength Mpa Elongation %(min) Impact energy (KVJ) (min)

The market demand of S355J2H seamless steel pipe in this week In this week, China’s S355J2H seamless steel pipe  market demand is strong, and the quotation of economic and trade partners has been raised overall. China’s S355J2H seamless steel pipe  market is active, the price is rising rapidly, and the international market continues to rise this week. China's raw material stock market is in a tight trend and the downstream enquiries are active. This week, steel mills concentrated their bidding and the volume of transactions increased. As the price of iron rises, the bid price of S355J2H seamless steel pipe mills continues to rise. Early factory opening prices were stable and trading was weak, and S355J2H seamless steel pipe is simultaneously locked in price. Taking into account the price situation yesterday, the price of S355J2H seamless steel pipe  is reduced by 20 RMB, which can stimulate a batch of mill stock goods. In general, due to the recruitment of steel, the pri

Katalor has the good quality S355J0H steel pipe on sale  Katalor is a famous steel company in China, we can export all of steel materials include S355J0H steel pipe to the world. We have our professional team to produce S355J0H steel pipe. And we also can promise our S355J0H steel pipe has the high quality. The S355J0H steel pipe has the high strength and good ductility. Because the effect of alloy elements in S355J0H steel pipe , its strength is 25 to 50 higher than that of ordinary carbon steel, the elongation S355J0H steel pipe is 15-23, and the impact toughness at room temperature is higher than 60J / cm ^ 2. The second part is the S355J0H steel pipe has good weldability. Due to low carbon content, low alloy element content, good ductility and low hardenability, it is not suitable to appear quenching microstructure or crack in weld seam. Next is Good processing performance under cold and hot pressure. Due to S355J0H steel pipe good plasticity, small deformati

The reasons to impact the 34CrMo4 steel pipe price  The price is the important part in the 34CrMo4 steel pipe , Katalor is a famous steel exporter and supplier with 34CrMo4 steel pipe in China. We have 34CrMo4 steel pipe with different sizes and high quality to meet your any requirements. The first is the cost of  34CrMo4 steel pipe  raw materials.  34CrMo4 steel pipe is a kind of high-alloy steel which can resist corrosion in air or chemical corrosion medium. 34CrMo4 steel pipe  raw materials are mainly iron, chromium, nickel, the price of these raw materials play a decisive role in the price of 34CrMo4 steel pipe, the price of raw materials will support the 34CrMo4 steel pipe price, otherwise the formation of pressure or power. Second, the supply and demand relationship of 34CrMo4 steel pipe market.  Supply and demand have been constantly guiding the price, and inventory is a good reflection of the current market supply and demand. Supply exceeds demand, the pr

35CrMo steel pipe has the good weldability under the GB/T 18248  Katalor is a professional steel company to produce the 35CrMo steel pipe . We have our own mill and warehouse in 35CrMo steel pipe. Every month, we have export 35CrMo steel pipe more than 40,000 ton. According to the International Institute of Welding (IIW), when Ceq<0.40%, the hard tendency of 35CrMo steel pipe is not obvious, the weldability is excellent, the welding is not necessary to be preheated and can be welded directly. When Ceq=0.40 to 0.60%, the hard tendency of the 35CrMo steel pipe is obvious, the weldability is still available, the 35CrMo steel pipe needs to be properly preheated before welding. Meanwhile, the post weld slow colding and other technical measures need to be adopted to control the welding connection energy. When Ceq>0.60%, the hard tendency of steel is strong, and the weldability is poor. It belongs to hard welding steel, such as 35CrMo steel pipes. It is necessary t

GB/T 18248 30CrMo steel pipe for gas cylinder pipe  GB/T 18248  30CrMo steel pipe is belong to the gas cylinder pipe, and it is our mainly product in Katalor. We are the professional GB/T 18248 30CrMo steel pipe supplier and exporter in China. We have the large stock of GB/T 18248 30CrMo steel pipe in our warehouse. This GB/T 18248 30CrMo steel pipe has high strength and toughness, high hardenability and critical quenching diameter of 15 ~ 70mm in oil. Hot strength of the GB/T 18248  30CrMo steel pipe  is better also, under 500℃ has the enough high temperature strength, but a significant reduction in the 550 ℃ when the strength; When the alloy elements in flash welding is quite good, but close to cap the weldability medium, and preheat to 175℃ or above before welding; GB/T 18248  30CrMo steel pipe  has good machinability and medium plasticity in cold deformation. Heat treatment in the range of 300 ~ 350℃ when the first kind of temper brittleness; Has a tendency to form whi

How to ensure the balance of performance of Q345D seamless steel pipe  As we all know, Q345D seamless steel pipes are relatively easy to appear some problems in the production process. Katalor is a professional Q345D seamless steel pipe supplier in China, we only produce the Q345D seamless steel pipe with different sizes and high quality. In order to ensure the performance homogenization of Q345D seamless steel pipes , we need to strictly control the annealing temperature, heat preservation time and cooling speed of Q345D seamless steel pipes.  (1) Strictly control the annealing temperature of  Q345D seamless steel pipes . When the annealing temperature is too high, the carbides dissolve more, the austenite homogenization degree is large and the core of the spheroidizing will be reduced or lost. The sheet like pearlite is easily obtained after the annealing of the Q345D seamless steel pipe; the temperature is too low, the original lamellar pearlite is difficult to dis

Q345B welded steel pipe has the good formability and weldability   Katalor is aim to export all kinds of steel materials production in China. Q345B welded steel pipe is our mainly product. So we have a large of Q345B welded steel pipe with high quality and different size. Of course our Q345B welded steel pipe has the good formability and weldability. Q345B welded steel pipe  is a Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process, and is used for a number of manufacturing purposes. The Q345B welded steel pipe with less than 0.2 percent of its composition made up of carbon, less than 0.55 percent of its composition made of silicon and several impurities (mostly sulfur, chromium and nickel). The major benefit of Q345B welded steel pipe  is its mild temper. It’s easy to form and easy to weld, allowing it to be used to put Q345B welded steel pipe on doors, steel cabinets and the exterior surfaces of most objects. if you have go

Katalor has the corrosion resistance of GB/T 8163 20# steel pipe 20# steel pipe is more and more popular with the demand of 20# steel pipe increase. Katalor has the good 20# steel pipe with different size. And we usually export 20# steel pipe to all over the world. So that we have lots of customers from all over the world. 20# steel pipe has good resistance to atmospheric corrosion. They not only improve the effectiveness of the anti-corrosion coating, but also improve the anti-corrosion effect in some case. 20# steel pipe is even possible to take initial precautions against the atmosphere without a coating. The elements in 20# steel pipe improve atmospheric corrosion resistance are copper, phosphorus, silicon, chromium, nickel, and moles, beryllium. Some 20# steel pipe has excellent resistance to atmospheric corrosion and form a new concept of structural design such as buildings and bridges. These structures have been constructed using the appropriate exposed part

The development of A106M Gr.B steel pipe in China  In the construction investment, the  A106M Gr.B steel pipe can take up approximately 30-40 %, from which we can see that the investment in the A106M Gr.B steel pipe and pipe manufacturing industry is likely to obtain higher benefits. So the A106M Gr.B steel pipe  become more and more popular. On the other hand, due to people’s increasing concern about HSE, the quality requirements for  A106M Gr.B steel pipe and pipe making are increasingly high, that is, the reliability of A106M Gr.B steel pipe is increasingly high. In addition, the increase of conveying pressure in a certain range can save investment and reduce transportation costs, so the conveying pressure, especially for the gas pipeline, has a trend of gradual improvement, thus the requirements on a series of indicators such as the strength of  A106M Gr.B steel pipe , impact toughness have been improved.  In addition, as the oil and gas fields gradually deve

Prior to ASTM A53M GR.B steel pipe welding quality control  In the large-straight seam A53M GR.B steel pipe welded steel pipe joint structure, A53M GR.B steel pipe weld and heat affected zone is the easiest place to produce a variety of defects, and weld undercut, pores, slag, lack of fusion, lack of penetration, weld, burn, weld cracking is the main form of welding defects, and are often the cause A53M GR.B steel pipe quality accidents origin. Prior to A53M GR.B steel pipe welding quality control     1. Make a good quality of raw materials for A53M GR.B steel pipe , after passing inspection before being officially entered the construction site, and resolutely put an end to the use of substandard steel. 2. Followed by the management of welding materials of A53M GR.B steel pipe . Check whether the welding materials for qualified products, storage and baking system if implemented, whether to issue a A53M GR.B steel pipe welding material surface clean and free of r

Katalor introduce the 20# seamless steel pipe derusting method  With the sustainable development of China’s economy, the state vigorously develops the energy industry, long-distance oil and gas pipeline is an important way of energy security, in the oil (gas) pipeline anti-corrosion construction process, 20 # seamless steel pipe surface treatment is one of the key factors to determine the pipeline anti-corrosion service life, it is anticorrosive coating and 20 # seamless steel pipe can be firmly combined. The influence of surface treatment of 20# seamless steel pipe on the life of the coating is about 50%. Cleaning. The surface of 20 # seamless steel pipe can be cleaned by solvent and emulsion in order to remove oil, grease, dust, lubricant and similar organic matter, but it can not remove rust, oxide scale and flux on the surface of 20 # seamless steel pipe, so it is only used as auxiliary means in anticorrosion production. The grease and dirt on the surface of 20 #

Boiler operation status of the GB/T 5310 20G boiler steel pipe  Some steel companies produce the fake 20G boiler steel pipe cause the huge problems. Because the creep resistance of 20G boiler steel pipe is lower than other steel pipes and the 20G boiler steel pipe is overheated, the 20G boiler steel pipe wall metal overheated for a long time, which results in accelerated creep at high temperature, decreased strength, and finally the early creep burst occurred. During 20G boiler steel pipe fracture analysis, it was found that the macroscopic surface of the 20G boiler steel pipe fracture was covered with thin blue-purple oxide film, which indicated that the temperature of the 20G boiler steel pipe burst was 800℃, and the section was not smooth due to the effect of high temperature oxidation. There is a thick oxide layer on the inner surface of the  20G boiler steel pipe . The structure of the oxide layer has three layers and usually only when the ambient temperature

Katalor has the low price in P91 boiler steel pipe Where can buy the high quality P91 boiler steel pipe with low price? Katalor is a best choice for you to purchase P91 boiler steel pipe . We have P91 boiler steel pipe with different sizes to meet your any requirements. If you are interested in P91 boiler steel pipe, you can contact us. Nowadays the price for P91 boiler steel pipe  is kept in up and down status, comparing with April, now P91 boiler steel pipe’s price has a rising by usd30/ton in average, because now Chinese government is taking the more strictly production limitation policy, some mills with smaller scale are getting to be closed because of environmental problems. In the near future, it is strong possible that price P91 boiler steel pipe  will hike for a while because of output limitation while increased demand from domestic and international market. Katalor Enterprises has established a full set of strict quality control system of P91 boiler steel pipe

Heat treatment of welded P9 Steel Pipe Heat treatment of welded P9 Steel Pipe  has three forms: The first is on-line weld heat treatment. Add 1 group or array of power frequency induction heating device before sizing, only heat weld zone, do not involve P9 Steel Pipe matrix, improve weld structure, eliminate welding stress as the goal, but can not solve the whole P9 Steel Pipe . The problem of organizational uniformity. The second is on-line full P9 Steel Pipe heat treatment. Add 2 sets or more of intermediate frequency ring induction heating device before sizing to heat the P9 Steel Pipe, heating to the temperature needed for on-line normalization in a short time (about 900 ~ 920 ℃), holding for a certain time, air cooling to when the P9 Steel Pipe temperature is below 400 ℃, it is normally cold. As a result of the treatment of the whole P9 Steel Pipe , its organizational uniformity has been improved. Last is P9 Steel Pipe  heat treatment in an off-line ordinary

Standard quality requirements for SA179 Boiler Steel Tube SA179 Boiler Steel Tube production has a history of nearly 50 years. With the progress of boiler manufacturing technology and the improvement of operation parameters, the requirements for the technical properties of SA179 Boiler Steel Tube are becoming higher and higher, which promotes the development of SA179 Boiler Steel Tube standards. Although the standard level and test items of SA179 Boiler Steel Tube vary slightly from country to country, there are some common points in the development trend, which are mainly: 1.The actual control value is much lower than the standard value by improving the purity of steel and reducing the content of schip in steel tube billet. 2.Reducing the tolerance range of SA179 Boiler Steel Tube size. 3.In order to make the steel pipe have a certain plasticity, the upper and lower limits of mechanical properties are defined. 4.The surface quality (such as scratches) of

Main technical requirements of welded SA106B   boiler steel pipe  The high quality SA106B boiler steel pipe should have an important main technical requirements. Katalor is a professional SA106B   boiler steel pipe supplier in China. We work on SA106B boiler steel pipe for more than 10 years, so we have rich experience.  1. Stable high temperature rupture strength, plastic and creep strength. The SA106B boiler steel pipe work under certain temperature and pressure, and the technical indexes under certain temperature should have certain stability. 2. SA106B   boiler steel pipe with certain oxidation resistance and corrosion resistance. 3. Good process performance, such as SA106B boiler steel pipe welding performance and good flattening, flaring, cold bending, easy to process and manufacture. 4. Good internal and external surface quality and dimensional accuracy in SA106B   boiler steel pipe. 5. Good SA106B boiler steel pipe weld quality. In order to en

The right welding way for 13CrMo44 boiler steel pipe Katalor is a professional steel exporter and supplier in China, we have professional team to produce the 13CrMo44 boiler steel pipe . Do you know the right welding way for 13CrMo44 boiler steel pipe? Katalor will offer the right welding way for 13CrMo44 boiler steel pipe for you.  Welding 13CrMo44 boiler steel pipe  first need to clean up the oil, paint, water, rust, etc. And then open the groove according to the wall thickness, which should be open a little bigger for thicker wall 13CrMo44 boiler steel pipe, and smaller for thinner one. And the matter then is the butt gap, usually it is the 1-1.5 times of welding rod or wire diameter. If the groove is open bigger, the butt gap can be properly kept small. 13CrMo44 boiler steel pipe spot welding is at least three points, generally four is better. When welding 13CrMo44 boiler steel pipe , it should be welded in half and half. The starting point is best to exceed the

The principle of the 15Mo3 boiler pipe Everyone know the 15Mo3 boiler pipe  is under the standard of the DIN 17175. Of course 15Mo3 boiler pipe is mainly product in Katalor. We have own mill to produce the 15Mo3 boiler pipe  with high quality. We will introduce the principle of 15Mo3 boiler pipe for you. Stay under 300-500 ℃, the purified hydrogen bubbled into 15Mo3 boiler pipe side, the hydrogen adsorption in 15Mo3 boiler pipe  wall, as a result of the palladium 4 d shell lack of two electrons, it can generate unstable with hydrogen bonds (palladium and the reaction is reversible hydrogen), under the action of palladium, ionized hydrogen protons as the radius of 1.5 x 1015m, while palladium lattice constant of 3.88 x 10-10m (20℃), it can through 15Mo3 boiler pipe, under the action of palladium protons combined with electrons to form hydrogen molecules, Escape from the other side of the 15Mo3 boiler pipe . On the surface of steel tube of 15Mo3 boiler pipe, the undisso

The development of X70 pipeline steel in Katalor With the development of the pipeline project, the demand of X70 pipeline steel is increasing. Katalor is a famous steel exporter in China, we have a large stock in X70 pipeline steel . And we have our own factory to produce the X70 pipeline steel. Internationally, high strength and high toughness  X70 pipeline steel  has been used for many years on long distance pipelines. With the construction needs of China’s “West-East Gas Transmission” pipeline and the “China-Russia” pipeline to be built, certain requirements are put forward for the high strength and high toughness X70 pipeline steel. At the same time, in order to improve transportation efficiency, reduce energy consumption and reduce investment, it has become a trend for long distance pipeline to develop into high pressure and large caliber transportation, and the requirement of high strength and high toughness for X70 pipeline steel is put forward. The production te

Welding Heat affected Zone of X60 Pipeline Steel  Katalor is a famous X60 pipeline steel supplier and exporter, we have lots of customers in the steel market. We has been export X60 pipeline steel more than 35,000 ton every month. And X60 pipeline steel is the mainly product in our company. The toughness of the HAZ of X60 pipeline steel increases with the decrease of the peak temperature, and the toughness of the coarse grain zone can only be obtained under the small wire energy, and the toughness of the X60 pipeline steel partial phase change zone is the best, and the toughness of the partial phase change zone is the best at -40℃ impact temperature. The impact energy is 270J, which is larger than 224J of X60 pipeline steel base metal. The hardness of the X60 pipeline steel coarse-grained heat affected zone is higher than that of the base X60 pipeline steel metal, and softening occurs in some phase transition and tempering regions. With the increase of X60 pipeline

The low price of St45.8 seamless steel pipe in Katalor  Katalor has rich experience in St45.8 seamless steel pipe , we have the strict quality control system. And we have our professional team and person to produce and check St45.8 seamless steel pipe . The quality of St45.8 seamless steel pipe is our important task. We can promise our St45.8 seamless steel pipe is the best among lots of steel companies. We are able to supply St45.8 seamless steel pipe  products line range price and specification,we are steel suppliers and manufacturer, you can contact us to get St45.8 seamless steel pipe products line range application and other informations. We can produce St45.8 seamless steel pipe  with different size according customers’ requirements. St45.8 seamless steel pipe for boiler ERW pipe specification that OD 10.3mm-660mm, Wall thickness 1.0-16mm. If you have others St45.8 seamless steel pipe requirements, we can change a little under the good quality. At the same time, we c

Be careful some problems of the St35.8 seamless steel pipe Katalor has the rich experience in St35.8 seamless steel pipe  more than 10 years. As we all know, the high quality St35.8 seamless steel pipe also has lots of problems in the surface treatment. And then Katalor will introduce the common problems in St35.8 seamless steel pipe  for boiler surface treatment.     1. Inconsistent surface of St35.8 seamless steel pipe  for boiler: only the pickling passivation of the welds also causes uneven surface and affects the appearance.  2. Weld defect: The weld defect is serious, and St35.8 seamless steel pipe is compensated by manual mechanical grinding method. The resulting grinding marks cause uneven surface and affect the appearance.  3. It is difficult to remove the St35.8 seamless steel pipe  for boiler: the whole pickling passivation can not remove all the scratches generated during the process, and it can not remove the St35.8 seamless steel pipe surface due to s

Corrosion behavior of API 5L PSL2 X56 seamless steel pipe  API 5L PSL2 X56 seamless steel pipe is our mainly product. Therefore, in addition to good mechanical properties, API 5L PSL2 X56 seamless steel pipe must also have excellent corrosion resistance. The corrosion resistance of API 5L PSL2 X56 seamless steel pipe in soil has an important impact on the service life of API 5L PSL2 X56 seamless steel pipe. By electrochemical analysis, it is found that the self-corrosion potential of API 5L PSL2 X56 seamless steel pipe is higher than that of acicular ferrite API 5L PSL2 X56 seamless steel pipe, and the corrosion current and mass loss of  API 5L PSL2 X56 seamless steel pipe  are smaller than that of acicular ferrite API 5L PSL2 X56 seamless steel pipe, showing excellent corrosion resistance. Through copper accelerated acetate spray test, it is found that the total number of pitting pits in API 5L PSL2 X56 seamless steel pipe  large deformation pipeline steel is less

Notice of API 5L PSL2 X52 pipeline steel production  Katalor is a professional steel exporter and supplier in China, we have lots of API 5L PSL2 X52 pipeline steel with different sizes. We also have lots of customers are from all over the world to purchase   API 5L PSL2 X52 pipeline steel . So you can believe our API 5L PSL2 X52 pipeline steel has the best quality.  1. The chemical composition, dimension, specification and surface quality of the API 5L PSL2 X52 pipeline steel  billet have been checked and qualified, and the material can be fed according to the furnace after checking. 2. API 5L PSL2 X52 pipeline steel  billet is heated in the annular furnace according to the heating system stipulated by this unit to ensure that the API 5L PSL2 X52 pipeline steel billet is heated evenly in the annular furnace, and no phenomena such as negative and positive surface, impermeable heating, overheating or overheating may occur. If rolling mill failures occur, cooling measur

API 5L PSL2 Gr.B pipeline steel has good welding performance  Good weldability of API 5L PSL2 Gr.B pipeline steel   is very important to ensure the integrity of pipeline and field welding quality.One of the most remarkable features of the development of API 5L PSL2 Gr.B pipeline steel  in modern times is the continuous reduction of carbon content in steel. Adding trace titanium can restrain the toughness drop in the affected area and improve the API 5L PSL2 Gr.B pipeline steel welding performance.  The difficulty and emphasis is on high resilience. With the continuous development of oil and natural gas transportation, the requirements for the performance of oil API 5L PSL2 Gr.B pipeline steel are constantly improved, especially for the toughness. The improvement of these properties requires the content of impurity elements C, S, P, O, N and H in API 5L PSL2 Gr.B pipeline steel  to be reduced to a very low level. High strength and high toughness are ensured by the bainit

How to storage the X42 pipeline steel  Do you know how to storage the X42 pipeline steel ? Katalor is a professional X42 pipeline steel supplier in China, we have the high quality X42 pipeline steel. Because we have professional team to produce X42 pipeline steel. 1. Place X42 pipeline steel with clean, smooth drainage, away from the production of harmful gases or dust factories and mines. Removing weeds and all debris on the site to keep the X42 pipeline steel  clean.The warehouse requires clear ventilation for the sunny days, and close moisture protection for rainy days, and often maintain a suitable X42 pipeline steel storage environment. 2. In warehouses, it is not allowed to pile materials together which are corrosive to X42 pipeline steel  such as acids, alkalis, salts, and cement. Different types of X42 pipeline steel should be stacked separately to prevent confusion and prevent contact corrosion. 3. The principle of stacking X42 pipeline steel  is that und

The advantages of X70 seamless pipeline steel in Katalor  X70 seamless pipeline steel   is the mainly product in Katalor. We has export X70 seamless pipeline steel more than 45,000 ton every month. And our X70 seamless pipeline steel has best quality, good service and affordable price. And there are advantages of X70 seamless pipeline steel  in Katalor. 1. The main perceived advantage of X70 seamless pipeline steel  is that they don’t have a weld seam. Traditionally, the seam of welded pipes has been viewed as a weak spot, vulnerable to failure and corrosion. For many years, this fear was probably justified. However, in recent years improvements in the manufacturing process for welded steel pipes and other welded pipes have boosted the strength and performance of the weld seam to levels indistinguishable from that of the rest of the pipe. 2. X70 seamless pipeline steel have better ovality, or roundness, than welded pipes. 3. X70 seamless pipeline steel provide pe

General technical requirements for X60 pipeline steel Modern X60 pipeline steel  belongs to low carbon or ultra low carbon microalloying steel, which X60 pipeline steel with high technology content and high added value. At present, the development trend of X60 pipeline steel  and pipeline engineering is large pipe diameter, high-pressure gas-rich transportation, service environment of high cooling and corrosion, and thick wall of submarine X60 pipeline steel . Therefore, the performance requirements of X60 pipeline steel at present mainly include the following aspects: (1) high strength. The strength indexes of X60 pipeline steel mainly include tensile strength and yield strength. At the same time, the high strength is required, and the bending strength ratio (the ratio of yield strength to tensile strength) of X60 pipeline steel is also required, which is generally within the range of 0.85 ~ 0.93.  (2) high impact toughness. X60 pipeline steel material should have hi

Be careful the fake X56 seamless steel pipe in the steel market 1. Easy to present the fold. The occurrence of folding is a variety of fold lines formed by the appearance of  X56 seamless steel pipe , which usually runs through the longitudinal direction of the X56 seamless steel pipe. Folding occurs because the counterfeit manufacturers seek high efficiency, the amount of pressing is too large, and the ear is generated. When the next rolling occurs, the folding occurs, and the folded X56 seamless steel pipe  is cracked after being bent, and the strength of X56 seamless steel pipe is greatly reduced. 2. No metallic luster, light red or similar to pig iron. There are two reasons for this: First,  X56 seamless steel pipe  raw material is adobe; second, the temperature of the fake X56 seamless steel pipe  raw materials is not standardized, and the steel temperature is measured by visual inspection. 3. The thin and low  X56 seamless steel pipe  is often showing a dissatisfie