Bebon Steel

  Grade Heat treatment system 20G a Normalizing: normalizing temperature 880℃~940℃ 20MnG a Normalizing: normalizing temperature 880℃~940℃ 25MnG a Normalizing: normalizing temperature 880℃~940℃ 15MoG b Normalizing: normalizing temperature 890℃~950℃ 20MoG b Normalizing: normalizing temperature 890℃~950℃ 12GrMoG b Normalizing + tempering: normalizing temperature 900℃~960℃, tempering temperature 670℃~730℃ 15GrMoG b Steel pipes with S≤30mm are normalized and tempered: normalizing temperature is 900℃~960℃; tempering temperature is 680℃~730℃. S>30mm steel pipe quenching plus tempering or normalizing plus tempering: quenching temperature is not less than 900 ℃, tempering temperature 680℃～750℃; normalizing temperature 900℃～960℃, tempering temperature 680℃ ~730℃, but should be cooled quickly after normalizing. 12Cr2MoG b Steel pipes with S≤30mm are normalized and tempered: normalizing temperature is 900℃~960℃; tempering temperature is 700℃~750℃. S>30mm steel pipe quenching plus temperi...

  L245 is a material in API 5L pipeline steel standard. As a special steel for steel tubes, L245 has high strength, high toughness, good weldability and corrosion resistance. Our factory strives to improve the cleanliness and organization uniformity of steel in the production process. Because of its good mechanical properties, the L245 is more expensive and is widely used in the transport of water, oil and natural gas. There are two levels of API 5L, one is PSL 1 and the other is PSL 2. Relatively speaking, the steel properties of PSL 2 series are better than THAT of PSL 1 series, so it is necessary to specify the level before purchase. We have Advanced L245 Screw Production Line, Producing range: Φ 219.1- Φ 4500x3.2 - -25.4 mm,and the length could reach to 100meters. Not only with high deposition rate but also have anatexis ability,quality welded seam, pretty compactness, the appearance of welded seam is flat and smooth which can satisfy different client demand on seam. From:http:...

  SA192 is a steel grade under the American standard ASME SA192, which mainly regulates seamless carbon steel boiler tubes and superheater tubes for high pressure conditions. Dimensions and thickness of seamless carbon steel boiler tubes for SA192 high pressure are: 1/2 to 7 inches (12.7 to 177.8 mm) outside diameter, minimum wall thickness 0.085 to 1.000 inches (2.2 to 25.4 mm). Mechanical property requirements do not apply to pipes less than 1/8 inch (3.2 mm) inside diameter or 0.015 inch (0.4 mm) thick. SA192 high-pressure seamless carbon steel boiler tubes should be manufactured by seamless process, which can produce hot-rolled or cold-drawn tubes. No heat treatment is required after hot-rolling. or higher temperature environment for heat treatment. We can provide hardness test, flattening test, flaring test, flange test and hydraulic test for SA192 seamless carbon steel boiler tubes for high pressure according to customer needs to ensure the quality of delivery, if you need se...

  The steel grades (10#, 20#, 35#, 45#, Q345A, Q345B, A345C, Q345D, Q345E, 20Cr) under the GB/T 8162 standard are mostly used for structural steel pipes. Customers can do the following process tests before receiving the goods. product quality. Flattening test For steel pipes made of 10, 20, and Q345 steel, the outer diameter of the steel pipe is larger than 22 ~ 400mm, and the ratio of wall thickness to outer diameter is not more than 10%. Flattening test should be carried out. . After the flattening test, the specimen shall be free of cracks or splits. Flaring test The flaring test can be done for the steel pipe with a wall thickness of not more than 8mm, and the taper of the top center is one of 30°, 45°, and 60°. After flaring, the sample shall not have cracks or cracks. Bending test The steel pipe with an outer diameter of not more than 22mm can be subjected to a bending test, the bending angle is 90°, the radius of the bending center is 6 times the outer diameter of the steel ...

  1. Confirm that the assembly quality meets the requirements of the group, first perform spot welding of SA179 components, and the length of spot welding The degree should be 20~30mm, and it should be firm. 2. After all the components are spot welded, the geometric dimensions of the components should be re-checked before the formal welding can be performed. catch. 3. In order to ensure the penetration of SA179 pipes, butt joints with a thickness of more than 8mm should be welded with V-shaped or K-shaped grooves, and should meet the requirements of SA179 for the height of weld reinforcement and the height of welding feet. 4. When welding SA179 boiler tubes, methods such as symmetry, jump welding, and segmental de-welding should be adopted to control the deformation of components caused by welding. 5. When the end of the welding seam of SA179 boiler tube ends arc, the molten pool should be filled. 6. For multi-layer welding, carefully remove the slag before welding the next layer. ...

  High-pressure boiler tubes are often used in high temperature and high pressure conditions. Under the action of high-temperature flue gas and water vapor, the tubes will be oxidized and corroded. Therefore, the steel pipes are required to have high lasting strength, high oxidation and corrosion resistance, and good tissue stability. GB/T 5310 standard boiler steel can meet these requirements. GB/T 5310 standard mainly includes the following key grades of steel: 20G, 20MnG, 25MnG, 15MoG, 12CrMoG, 15CrMoG, 12Cr1MoG, which can be used to manufacture high pressure and ultra-high pressure Boiler superheater tubes, reheater tubes, gas guide tubes, main steam tubes, etc. The outer diameter of hot-rolled high-pressure boiler tubes ranges from 22 to 530 mm, and the wall thickness ranges from 20 to 70 mm. The outer diameter of the cold-drawn high-pressure boiler tube is 10-108mm, and the wall thickness is 2.0-13.0mm. Compared with medium and low pressure boiler tubes, in addition to water ...

  It is understood that market participants in the Commonwealth of Independent States have returned to the market one after another after the end of the Hari Raya holiday last week. And Russian slab prices continued to cut to attract buyers due to low-priced resource offers from Ukraine. The source said that the main buyer of CIS resources is Turkey at present. Last week, the slab price in the Donbas region of Ukraine was 500-520 US dollars / ton CFR Turkey, which put pressure on Russian resource suppliers. This week, the price of Russian slab was also reduced to 520 US dollars / ton CFR Turkey level, down about 30 US dollars / ton from last week. Severstal and Magnitogorsk Iron & Steel Works (MMK) currently sell slabs in the market, while NLMK and Evraz have traditionally been the main slab sellers in the Russian spot market, but due to the related sanctions, Severstal and MMK lost most of their finished steel export opportunities and are therefore looking for opportunities in...

  As we all know, the longitudinally submerged arc welding pipe refers to the pipe with a parallel weld on the surface. Q195 How does longitudinally submerged arc welding pipe differ from other grades of pipe? First of all, the yield strength of Q195 material is 195 MPa, which is the biggest difference from other steels. At the same time, this is also the origin of the name of this material. Q195 is an ordinary carbon structural steel, and it has advantages in terms of price. In addition, various properties are suitable for most industries, so Q195 has always been our hot-selling product. Q195 grade LSAW is made of steel plate or steel coil, and then the edges of the plate are welded together. For some large-diameter Q195 LSAW, two plates need to be rolled to make a steel pipe. In this case, this large-diameter steel pipe will have two welds. Q195 grade steel has good weldability, plasticity, and toughness. The processed pipes are often used in the building structure industry, and ...

  Q235 is an ordinary carbon structural steel, referred to as "plain carbon steel" or "plain plate". Q235 is a kind of steel with good comprehensive properties, good weldability, plasticity, and strength, so that it can be processed into various sections or structural steels and can also be used as parts with low performance requirements. Q235 has a total of 4 grades, namely A/B/C/D. The difference between these grades is that the impact temperature in their respective performance is different, A grade does not have an impact; B grade is 20 degree impact, C grade is 0 degree impact, D grade Level -20 degree shock. Longitudinally Submerged Arc Welding pipe in Q235 refers to the welding method in which the arc is burned under the flux, so that the resulting weld has less metal impurities, better stability, and less influence on the strength of the steel pipe itself. The Longitudinally Submerged Arc Welding pipe of Q235 grade is used in some heavy industries such as oi...

  L245 is a material in API 5L pipeline steel standard. As a special steel for steel tubes, L245 has high strength, high toughness, good weldability and corrosion resistance. Our factory strives to improve the cleanliness and organization uniformity of steel in the production process. Because of its good mechanical properties, the L245 is more expensive and is widely used in the transport of water, oil and natural gas. There are two levels of API 5L, one is PSL 1 and the other is PSL 2. Relatively speaking, the steel properties of PSL 2 series are better than THAT of PSL 1 series, so it is necessary to specify the level before purchase. We have Advanced L245 Screw Production Line, Producing range: Φ 219.1- Φ 4500x3.2 - -25.4 mm,and the length could reach to 100meters. Not only with high deposition rate but also have anatexis ability,quality welded seam, pretty compactness, the appearance of welded seam is flat and smooth which can satisfy different client demand on seam. More:http:...

  Advantage of seamless steel pipe : 1. The weight of seamless steel pipe is relatively advantageous, and it is easy to take when using, so it is very popular with everyone. 2. The service life of seamless steel pipe is relatively long, because it has a relatively strong effect of anti-corrosion and high temperature resistance. 3. The fatigue resistance and impact resistance of seamless steel pipes are relatively large, so there are more people who choose it. 4. The hardness of seamless steel pipe is relatively high, so it is not easy to deform, and it can be used repeatedly in the later period of use. Shortcoming of seamless steel pipe : 1. The price of seamless steel pipes will be more expensive than that of ordinary steel pipes, and relatively speaking, the cost of purchasing seamless pipes will be higher. 2. The process of seamless steel pipes is relatively complicated and the cost is relatively high, so the use of seamless steel pipes is limited to a certain extent, ...