GB/T 5310 Steel pipes for high pressure boilers

 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 pressure, crimping, flaring, flattening and other tests, impact test, flaring test, grain size test, microstructure can also be added before delivery. Inspection and decarburization layer inspection.

Our high-pressure boiler tubes are mainly exported to Japan, Germany and other countries. The most popular sizes are 219.1×10.0mm and 419×75mm, and the smallest size is 31.8×4.5mm. Japan is more inclined to import alloy pipes and use them as supporting high temperature alloy pipes.


From:http://boilersteelpipe.com/pro/smls/gbt-5310-steel-pipes-for-high-pressure-boilers.html

评论

发表评论

此博客中的热门博文

What are the surface treatments of EN 10294-1 E355+N seamless pipes

  EN 10294-1 Grade E355+N mild steel seamless pipes are available in thicknesses ranging from 3mm to 100mm, outer diameters from 8mm to 250mm and inner diameters from 5mm to 700+mm. The shape of the pipe can be produced into a round pipe, and it can be produced into a square pipe or other special-shaped pipe by extrusion or welding. The surface finish can also be processed by cold drawing, centerless grinding, hot rolling, smooth turning and peeling. Chemical Properties Carbon Silicon Manganese Phosphorous Sulphur Molybdenum Nickel Chromium Copper Others max 0.22 max 0.50 max 1.50 0.045 0.05 max 0.08 max 0.40 max 0.30 max 0.30 V max 0.10 Mechanical Properties Yield Strength Tensile Strength Elongation A5 min MPa min ksi min MPa min MPa min ksi min Percentage     490 – – 20 E355+N pipe material also belongs to a category of CS pipes, and its hardness is not as good as that of high carbon steel, but its surface hardness can be adjusted by carburizing. The E355 grade is equi...
阅读全文

What are the usual pipes for Power Generation Boiler?

  Power Generation Boiler consists of economizer, furnace (evaporator), superheater tube, reheater tube, main steam tube, and reheater. We can supply all the tubing Power Generation Boiler uses. We also produce pipes of various standards and materials to adapt to the development of the boiler industry: Grade Compositions Applicabie Standards (abbreviation) ASTM EN DIN JIS Carbon steel 0.15-0.25C A53-GR A/B A106-GR A/B A178-GR A/C A192 A210-GR A-1   St45 St45.4 St45.8 C22 STB340(STB35) STB410(STB42) STB510(STB52) STPT370(STPT38) STPT410(STPT42) 0.25-0.35C A106-GR C A210-GR C   St55 St55.4 STPT480(STPT49) Low alloy steel 0.3-0.5Mo T1/T1a P1   15Mo3 16Mo5 STBA12/13 STPA12 0.5Cr-0.5Mo-v     14MoV63   0.5Cr-0.5Mo T2 P2     STBA20 STPA20 1Cr-0.5Mo T12 P12   13CrMo44 STBA22 STPA22 2.25Cr-1Mo T22 P22   10CrMo910 STBA24 STPA24 High chrome ferritic steel 9Cr-1Mo T9 P9   X12CrMo91 STBA26 STPA26 9Cr-1Mo-V-Nb T91 P91   X10CrMoVNb9-1 KA...
阅读全文

What are the applications of steel pipes in the automobile manufacturing industry?

图片
Cars are the daily necessary means of transportation for the public. The manufacture of cars is inseparable from steel pipe products. Let us take a look at the parts of the car that are composed of steel pipes: CCB pipe fittings CCB is mainly used to support man-machine interface control equipment and decorative parts, and at the same time form a safety system with other safety structures. The structure is simple and mainly includes a pipe beam, a side end support, a pipe column fixing support assembly, a lower support leg and an auxiliary support. Seat post It acts as a support structure within the car seat cover, allowing the seat to retain its structural shape. Trunk hinge The trunk hinge is the connecting mechanism of the trunk door of the car. Due to the opening angle of the trunk door, the hinge needs to bear the weight of the trunk door, so the hinge also needs to play a supporting role. Door anti-collision tube When the side door is hit, the sturdy high-strength anti-collision ...
阅读全文