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 […]
The strength of steel refers to the deformation and fracture performance of metal materials under the action of external force, which generally includes tensile strength, bending strength and compressive strength. The more resistant steel is to external forces, the stronger the steel will be. So how can we improve the strength of steel? Solution Strengthening The […]
Sulfide stress cracking (SSC) is a form of hydrogen embrittlement cracking. Sulfide stress cracking occurs in low alloy steel pipeline, high-strength steels, weld joints, and welding heat-affected zones (HAZs) subjected to tensile stress in acidic environments and temperatures below 82°C (180°F), depending on the composition, microstructure, strength, residual stress, and external stress of the steel. The […]
API 5A J55 is a commonly used casing material. The tubing body is threaded to the coupling and must be welded to reinforce the strength of the threaded connection. A harsh working environment requires high quality for the pipe body and welding quality. We analyze its weldability by calculating carbon equivalent. The chemical composition of J55 casing is shown […]
Hydrogen can be gaseous hydrogen, liquid hydrogen and solid hydrogen according to the state when transportation, among which high-pressure gaseous hydrogen is the most commonly used and environmentally friendly transportation mode at present. Pipeline transportation is the most efficient way for a large throughput and distance occasions can be a long-distance pipeline, also be a short distance […]
Line pipe is a type of steel pipe that is used for transporting materials through pipelines across the country. Line pipe can be used to transport petroleum, natural gas, oil, and water. It is a durable pipe that must meet certain specifications and regulations. This pipe typically has a high strength and durability in order […]
What is Line Pipe: Line pipe is a type of pipe that is manufactured from high strength carbon steel. It is typically made according to metallurgical specifications that were developed by the American Petroleum Institute (API). Line pipe can be used to build pipelines that transport a variety of resources including natural gas, oil, petroleum, […]
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