El tubo galvanizado, también conocido como tubo de acero galvanizado, se divide en galvanizado en caliente y galvanizado eléctrico. Galvanizado en caliente capa gruesa, recubrimiento uniforme, fuerte adherencia, larga vida útil. Galvanizado costo es bajo, la superficie no es lisa, resistencia a la corrosión que la tubería galvanizada en caliente es pobre.tubo de acero galvanizado: inmersión en caliente tubo de acero galvanizado acero [...]
In fact, the vessels is a big category among many steel plates, which has very special composition and many excellent properties. At present, this kind of vessels plate is mainly used to make pressure vessels in the market. For different situations and different uses, the corresponding materials to be made are also different. This kind of […]
Metal pipeline construction points for attention in winter, the biggest characteristic of winter construction I think is that the temperature is relatively low, in the welding operation must pay attention to the temperature, the need to determine the temperature of the welding position before welding, in the case of lower than the process requirements of […]
The nondestructive testing of steel mainly involves ray testing, ultrasonic testing, magnetic particle testing, penetration testing and eddy current testing. 1. Radiographic Detection (RT)X-ray testing refers to the non-destructive testing method that uses X-ray or gamma ray to penetrate the specimen and uses film as the equipment for recording information. This method is the most […]
nuestra fábrica tiene Φ720 laminado puede producir tubos sin costura de gran tamaño directamente . como API5L X65QS PSL2 OD610*12.7mm por laminado en caliente produciendo Longitud 12m API5L X65QS PSL2 composición química: API5L X65QS PSL2 Propiedades mecánicas www.wldsteel.com [email protected]
Sulfuro de hidrógeno H₂S es un compuesto inorgánico que es incoloro, inflamable, soluble en agua gas ácido, la corrosión por sulfuro de hidrógeno se refiere a la tubería de petróleo y gas que contiene una cierta concentración de sulfuro de hidrógeno (H2S) y la corrosión del agua. El H₂S se disuelve en agua y se vuelve ácido, lo que provoca corrosión electroquímica y picaduras y perforaciones locales en las tuberías. Los átomos de hidrógeno [...]
Heat-resistant steel refers to the steel that works at high temperature and has excellent thermal strength and thermal stability. Thermal strength refers to the ability to resist creep and fracture at high temperature, and thermal stability refers to the ability to resist oxidation and corrosion of gaseous media at high temperature. People usually refer to the heat-resistant […]
Molybdenum has been a key alloying element in creep resistant ferrite steels operating at temperatures up to 530°C. The main applications of creep resistant steel are in power plants and petrochemical plants, where steam turbines require large forgings and castings, and pressure vessels, boilers and piping systems require tubes, plates and accessories of all kinds.In addition […]
The connection form of heat exchange tube and tube plate mainly includes expansion, welding, expansion welding, etc. The strength expansion joint refers to the expansion of the sealing performance and tensile strength of the connection between the heat exchange tube and the tubesheet. It relies on the plastic deformation of the tube end to withstand the […]
We usually call the steel used the temperature range -10 to -273℃ as low-temperature steel or cryogenic steel According to alloying element content and structure, cryogenic steels can be divided into: Aluminum killed C-Mn steel such as 06MnVTi, 06MnVal, 09Mn2Vre, 06MnNb steel, low alloy ferric body low-temperature steel 0.5Ni, 2.5Ni, 3Ni, 3.5Ni, etc., Martensiform low-temperature […]
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