博文

目前显示的是 八月, 2022的博文

API 5L Spiral Welded Pipe

  API5L American standard spiral steel pipe is playing a great role in people's lives. With the planning and construction of many major pipeline projects at home and abroad, large-diameter steel pipes, high-strength pipes and thickened low-temperature pipes have shown Good market competitiveness. Process Submerged arc welding Standard API 5L PSL1,API 5L PSL2 Grade GR.B,X42,X46,X52,X56,X60,X65,X70 OD 8”–118”(219–3020mm) WT 0.322” -1.602” (8.1-26.97mm) Length According to customer's request Teatment Black paint, anti-corrosion paint Aplication For gas, water and oil transportation in the oil and gas industry, such as L and line pipes and subsea pipelines. API5L Spiral Welded Pipe is made by spiral forming raw material API5L strip steel by forming machine, through internal and external submerged arc welding, so as to produce different specifications of spiral welded pipe. The double-sided submerged arc spiral welded steel pipe has a simple production process, low operating costs f...

Advantages and disadvantages of seamless steel pipes

  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, ...

Nippon Steel raised the price of H-beam steel

Japanese steelmaker Nippn Steel said Tuesday that it will raise the price of H-beam Steel by another 35,000 yen ($256 per ton) this fiscal year, starting next month. It is understood that with the start of large-scale projects in the second half of the year, it is expected that the supply and demand will be further tight, the cost will rise, and the selling price will continue to rise. From:http://boilersteelpipe.com/news/industrynews/nippon-steel-raised-the-price-of-h-beam-steel.html

Hot rolled seamless steel pipe specification list

  Carbon steel, alloy pipe, high alloy steel and some non-ferrous seamless pipe can be produced by hot rolling method. The outer diameter range is 16 ~ 1600mm, and the wall thickness is 2 ~ 200mm. Specifications of commonly used hot-rolled seamless tubes are shown in the following table: 12×1.5 73×4-4.5-5-6-7-8-9-10-12-15 219×30-40 14×1.5-2.5-3 76×4-4.5-5-6-7-8-9-10-12-14 245×8-10-14-17-20-22 16×1.5-2.5-4 83×4.5-5-10/ 12 14 16 18 20 245×25-28-30-34-40 18×2.3-4-5 89×4.5-8-10/12-14 16 -18 20 273×7-9-12-15-18-20-25 20×2.5-3-5 95×4.5-6-8/10-12-14-16-20 273×30-35-38-40 24×2.5-3-4-5-6 102×4.5-5-6-7-8-10-12-14-16-20 299×8-12-16-20-24-28 25×2.5-3-4-5-6 108×4.5-5-6-7-8-10/12-14-18-20-22 299×30-32-36-38-40 28×3-3.5-4-5-6 114×4.5-5-6-7-8-10-12-14-18-20 325×8-12-14-18-38 32×3.5-4-5-6-8 121×4.5-5-6-7-8-10-12-14-16-20 325×28-32-34-38 34×4-5-6-8 127×4.5-5-6-7-8-10-12-14-16-20 351×10-16-20-25-40 36×3.5-5-6-8 133×4.5-6-8-12-14-16-18-20-25-30 355×6-18-20-25-30-40 38×4-5-6-7-8-9-10 140×5-6-7-8-9-10/1...

U.S. Steel to invest 1 billion to build steelmaking and continuous casting lines

  On August 8, U.S. Steel announced that it would invest $1 billion to build new steelmaking and continuous casting lines at its two steel plants in Mon Valley, Pennsylvania. The company plans to build a new continuous casting line at Edgar Thomson and a new combined heat and power facility at Clairton. The company said that the application of the new continuous casting production line will significantly improve its product competitiveness in the home appliance, construction and industrial markets, and factory workers will also receive corresponding training on the operation of the new equipment. At the same time, the investment will boost the economy of southwestern Pennsylvania and provide job security for thousands of steelworkers. "This investment by U.S. Steel opens a new chapter in Pennsylvania's manufacturing industry," David Taylor, president and CEO of the Pennsylvania Manufacturers Association, said in a news conference at the Clayton plant. The construction and...

What is seamlessly steel pipe

  The seamlessly steel pipe refers to the use of high-quality coiled plates, which are automatically formed and welded by slitting or coiling after re-inspection. While the computer controls the optimal fusion temperature, the inner and outer burrs of the steel pipe are removed. The whole is heated to 910℃-950℃ in an atmosphere with little oxidation, and the scale is removed and rolled by a tension reducer for multiple passes, so that the metallographic structure, grain state, geometric size and mechanical properties of the steel pipe are fully uniform. Seamlessly steel pipe is also called hot-rolled seamless steel pipe or hot-rolled steel pipe. It is between pure seamless and welded pipe. The quality is better than welded pipe, and the cost is lower than pure seamless. It is an ideal substitute product. The steel pipe has uniform wall thickness and fixed length, and is widely used in flammable and non-flammable fluid pipelines, boilers, and steel structures. The executable standar...

Steel pipe bending method and usage scenarios

  In working life, we will encounter bent steel pipes. Bends are bent by a complete set of bending dies. Elbow is mainly used for oil, gas, infusion set and so on. Let's take a look at five commonly used pipe bending methods. 1.  Punching method : Expand the tube end to the desired size and shape, with a tapered core on the punch. 2.  Bending forming method:   2.1 Stretching method   2.2 Stamping method   2.3 Roller method 3.  Bulging method:  one is to place the rubber in the pipe, and the upper part is squeezed with a punch to make the pipe protrude; the other is hydraulic expansion, which fills the middle of the pipe with liquid, and the liquid pressure expands the elbow into a certain shape. Need shape, most bellows are produced by this method. 4.  Forging method:  The pipe end or part is pulled out by a die forging machine to reduce the outer diameter of the pipe fitting. The commonly used forging machines are rotary, connecting rod...

API 5CT: J55 Petroleum Casing

  API 5CT is the American oil casing specification. We can provide oil pipes of various sizes. Small-diameter pipes can be made of seamless pipes or straight seam pipes. Large-diameter pipes can be realized by submerged arc welding technology. J55 grade is mainly used for the drilling of oil and gas wells and the transportation of oil and gas. API 5CT: J55 can be processed into oil drill pipe, oil casing, and sucker pipe. Oil drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is mainly used to support the well wall during the drilling process and after the well completion, so as to ensure the drilling process and the normal operation of the entire oil well after the well completion. The oil pipe mainly transports the oil and gas at the bottom of the oil well to the surface. If you are interested in API 5CT: J55 Oil Casing, feel free to contact us for a quote. From:http://boilersteelpipe.com/pro/lsaw/API-5CT-J55-Petroleum-...

ASTMA333 low temperature steel pipe

  There are 9 grades of cryogenic pipes under the ASTM A333 standard, which are often used for -45℃~-195℃ cryogenic pressure vessel pipes or seamless steel pipes for cryogenic heat exchangers. Chemical composition content of different grades Standard Grade Chemical Composition (%) C Si Mn P S Cr Ni Cu Mo V Al ASTM A333 Grade 1 ≤0.30   0.40~1.06 ≤0.025 ≤0.025             Grade 3 ≤0.19 0.18~0.37 0.31~0.64 ≤0.025 ≤0.025   3.18~3.82         Grade 4 ≤0.12 0.18~0.37 0.50~1.05 ≤0.025 ≤0.025 0.44~1.01 0.47~0.98 0.40~0.75     0.04~0.30 Grade 6 ≤0.30 ≥0.10 0.29~1.06 ≤0.025 ≤0.025             Grade 7 ≤0.19 0.13~0.32 ≤0.90 ≤0.025 ≤0.025   2.03~2.57         Grade 8 ≤0.13 0.13~0.32 ≤0.90 ≤0.025 ≤0.025   8.40~9.60         Grade 9 ≤0.20   0.40~1.06 ≤0.025 ≤0.025   1.60~2.24 0.75~1.25       Grade 10 ≤0.20 0.10~0.35 1.15~1.50 ≤...

JISG3455 STS370 carbon steel pipe elongation for high pressure pipe

For pipes with a thickness of less than 8mm, use the calculation of the elongation value of the No. 12 sample (longitudinal) and the No. 5 sample (transverse) Grade Shape Different thickness elongation % >7mm <8mm >6mm ≤7mm >5mm ≤6mm >4mm ≤5mm >3mm ≤4mm >2mm ≤3mm >1mm ≤2mm STS370 Sample No.12 30 28 27 26 24 22 21 Sample No.5 25 24 22 20 19 18 16 If you are interested in JISG3455 STS370 carbon steel pipe for high pressure pipe, you can feel free to contact us for a quotation. From:http://boilersteelpipe.com/pro/smls/jisg3455-sts370-carbon-steel-pipe-elongation-for-high-pressure-pipe.html

JISG3455 STS480 Pipe Absorbed energy in Charpy impact test

Remark: 1.The Charpy impact test shall not be imposed on the pipe not affording to provide a test piece 10 x 5 mm. 2.The test piece shall be No. 4 test piece specified in JIS Z 2202 to be cut from a pipe in the longitudinal direction. However, the width of the test piece may be altered to 7.5 mm or 5mm according to the dimensions of the pipe . 3.The test method shall be in accordance with the method of Charpy impact test specified in JIS Z 2242. 4.The test results of Charpy impact test shall conform to the requirements of 1. 5.The method of sampling the test specimens and the number of test pieces shall be as follows. Take one pipe as the specimen from each 100 pipes or its fraction of the concurrent heat treatment, and then from each specimen take one set (3 pieces) of test pieces. 6.Reinspection When the test results fail to satisfy the requirements, a retest may be made to attain final acceptance provided that the average value of absorption energy already obtained satisfies the spe...

STPG370 and STPG410 Steel Pipe Sizes

  OD size OD(mm) Specifications and Wall Thickness A B SCH20 SCH30 SCH40 SCH60 SCH80 T(MM) W(KG/M) T(MM) W(KG/M) T(MM) W(KG/M) T(MM) W(KG/M) T(MM) W(KG/M) 15 1/2 21.7 - - - - 2.8 1.31 - - - - 20 3/4 27.2 - - - - 2.9 1.74 3.4 2.0 - - 25 1 34.0 - - - - 3.4 2.57 3.9 2.89 4.5 3.27 32 1-1/4 42.7 - - - - 3.6 3.47 4.5 4.24 - - 40 1-1/2 48.6 - - - - 3.7 4.10 4.5 4.89 - - 50 2 60.5 3.2 4.52 - - 3.9 5.44 - - - - 65 2-1/2 76.3 4.5 7.97 - - 5.2 9.12 - - - - 80 3 89.1 4.5 9.39 - - 5.5 11.3 - - - - 90 3-1/2 101.6 4.5 10.8 - - 5.7 13.5 - - - - 100 4 114.3 4.9 13.2 - - 6.0 16 7.1 18.8 8.6 22.4 125 5 139.8 5.1 16.9 - - 6.6 21.7 8.1 26.3 9.5 30.5 150 6 165.2 5.5 21.7 - - 7.1 27.7 9.3 35.8 11 41.8 200 8 216.3 6.4 33.1 7.0 36.1 8.2 42.1 10.3 52.3 12.7 63.8 250 10 267.4 6.4 41.2 7.8 49.9 9.3 59.2 12.7 79.8 - - From:http://boilersteelpipe.com/pro/smls/stpg370-and-stpg410-steel-pipe-sizes.html

JIS G3454 Standard Pressure Pipe Equivalent Material

  JIS ASTM BS DIN NF ISO Index Number Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type Standard Number Grade Type G3454 STPG370 C A135 GrA C 3601 ERW360 C 1626 St37.0 C A49-112 TS27b C 559 TS4     C002     A587   - C " S360 C 1629 St37.0 C A49-141 TS37a C 2604/2 TS4 C                             17172 StE210.7 C A49-142 TS37a C 2604/3 TW4 C                                         “ TS37b C                                                     A49-150 TSE235 C                                                     A49-212 TS37C C                                                     A49-242 TS37C C           ...

What is the difference between GBT3087 and GBT8163

  GBT3087--2008 Standard for seamless steel pipes for low and medium pressure boilers, suitable for high-quality carbon structure for low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch brick pipes for locomotive boilers Steel hot-rolled and cold-drawn seamless tubes. GBT8163--2008 Standard for seamless steel pipes for conveying fluids, suitable for general seamless steel pipes for conveying fluids, 10# and 20# steels in GBT8163--2008 are limited to boilers with rated outlet hot water temperature lower than 120 degrees, heat transfer oil The operating temperature range is generally 200-400 degrees For long-term circulation in a high temperature environment, the GBT3087--2008 standard should be used, and the temperature of the heat transfer oil in the organic heat carrier boiler is generally 300-400 degrees, so the GBT3087--2008 pipe must be used From:http://boilersteelpipe.com/pro/sml...

GB T 3087 seamless steel tube for low and medium pressure boiler delivery state

  GBT3087--2008 Standard for seamless steel pipes for low and medium pressure boilers, suitable for high-quality carbon structure for low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch brick pipes for locomotive boilers Steel hot-rolled and cold-drawn seamless tubes. GBT8163--2008 Standard for seamless steel pipes for conveying fluids, suitable for general seamless steel pipes for conveying fluids, 10# and 20# steels in GBT8163--2008 are limited to boilers with rated outlet hot water temperature lower than 120 degrees, heat transfer oil The operating temperature range is generally 200-400 degrees For long-term circulation in a high temperature environment, the GBT3087--2008 standard should be used, and the temperature of the heat transfer oil in the organic heat carrier boiler is generally 300-400 degrees, so the GBT3087--2008 pipe must be used. From:http://boilersteelpipe.com/pro/sm...