Insulation joints are mainly used in the sealing protection of oil and gas pipelines and to prevent electrochemical corrosion. They are mainly composed of short joints, steel flanges, fixing rings, seals, insulation plates, insulation sleeves and filling insulation materials. Seals can be O-ring seal, U-ring seal and “O-shaped + U-shaped” composite seal, although the sealing structure […]
D'une manière générale, le traitement de surface des tôles d'acier de construction est nécessaire pour accroître leur résistance à la corrosion et leur durabilité. La qualité du traitement de surface affecte directement l'adhérence du revêtement au substrat de la pièce revêtue et la résistance à la corrosion du matériau. L'huile, la graisse, la poussière et d'autres contaminants provoquent le décollement du film de peinture ou [...]
API 5L X42 Steel Line Pipe is generally used for the conveyance of oil and gas in transmission lines,distribution main lines,and offshore pipeline systems.Zhonghai supplies welded and seamless API 5L grades through X 70 for high pressure applications,All of the API 5L X42 Steel Line Pipe products we are supplying can reach the international standard […]
Wldsteel produces welded steel line pipe, both spiralweld and rolled and welded, in lengths from 30’ to 60’ and wall thicknesses from .250 inches to 2.0 inches. These line pipes, often used to transfer liquid and air, meet the following standards: AWWA C200, ASTM 139, ASTM 134, and ASTM 135. Steel pipe has many advantages […]
The condenser is important auxiliary equipment in the thermal generator set. The condenser is generally composed of neck, casing, water chamber, tube bundle, tube plate, support rod, steam baffle, air cooling area, hot well and other parts, which is the key equipment to determine and affect the load and thermal efficiency of a steam turbine. The heat […]
In the last article, we introduced what is caustic cracking, the type of caustic cracking and the harm of caustic cracking. Today here we will continue to describe how to prevent caustic cracking corrosion. Choosing the carbon steel material Carbon steel equipment can be used to hold caustic soda at room temperature, considering the terms of […]
Caustic Cracking, also known as caustic embrittlement, is the metals cracking in alkaline solutions due to the combined action of tensile stress and corrosive media, is a type of SCC. The cause cracking of pressure boiler mainly occurs in the parts where steam is repeatedly evaporated and condensed or in contact with caustic soda, which may be carbon steel, low […]
Epoxy coal tar is a kind of ] corrosion prevention coatings with excellent impact resistance and water resistance, consist by the modified epoxy resin, polyamide resin, coal tar, fillers and additives, offering excellent water resistance, microbial corrosion resistance, good adhesion, toughness, moisture resistant. It can prevent all kinds of ion etching, has been widely used in steel used […]
Steel pipe pile foundation has the characteristics of quick construction, safety and highly mechanized operation, and is often widely used in large offshore bridges, substructures of ports and wharves, temporary platforms and trestles, etc. Compared with reinforced concrete foundation, steel tube pile foundation has the following advantages: Lightweight, high strength, convenient loading and transportation; High bearing capacity. […]
In the offshore and inland alluvial plain region, the thickness of 50 ~ 60 m soft soil layer of the upper load is big and can not directly as a bearing layer, the low compression bearing layer is always deep, where usually use the general structure of steel pile with a pile hammer producing a large impact on it. Steel pipe pile reinforcing […]
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