Category: stainless steel

Structural detailed solution of shell and tube heat exchanger

Structural detailed solution of shell and tube heat exchanger The shell-and-tube heat exchangers mainly include structural types such as fixed tube-plate heat exchangers, floating-head heat exchangers, U-tube heat exchangers, and packing-type floating-head heat exchangers. The structure of the fixed-tube heat exchanger is simple. The low manufacturing cost can obtain a smaller shell inner diameter. The tube process can […]

Combination of tensile stress and specific corrosive environment may rupture stainless steel plates

The combination of tensile stress and a specific corrosive environment can cause the stainless steel plate to break. This type of attack is called Stress Corrosion Cracking (SCC). The most common environmental exposure condition that causes SCC in stainless steel is the presence of chloride. Although the degree of stainless steel immunity to chloride SCC is large, […]

The problem of sensitizing reaction of austenitic stainless steel

In the temperature range of 950-1450°F, chromium carbide tends to precipitate at the grain boundary of austenitic stainless steel. Any exposure or thermal excursion within this temperature range during metal manufacture and use may cause sensitization of the austenitic stainless steel. Common practices such as welding, stress relief and thermoforming can make stainless steel reach the […]

Barriers to the use of duplex stainless steel

The attractive combination of high strength, extensive corrosion resistance and moderate weldability seems to provide great potential for increasing the market share of duplex stainless steel. However, it is necessary to understand the limitations before using duplex stainless steel. The advantages of high strength can also be a drawback when considering formability and workability. High strength […]

A simple guide to duplex stainless steel

Duplex stainless steel is becoming more and more common. They can be produced in all major steel mills. The reasons for its general application are as follows: higher strength leads to weight saving, stronger corrosion resistance, especially stress corrosion cracking, high price stability and relatively cheap price. However, even with these advantages, the market share of […]

Development history of duplex stainless steel

Early development of duplex stainless steel: Duplex stainless steel, which combines many beneficial properties of ferritic and austenitic stainless steels, was originally developed in the early 1930s. The initial duplex stainless steel provides good performance characteristics but has limitations under welding conditions. The metallurgical process at the time was not suitable for producing grades with the […]

Duplex Stainless Steel Applications in the Oil and Gas Industry

In the past few decades, the severity of corrosion in the oil and gas industry has increased year by year. Because the offshore oil industry continues to push oil exploration deeper, it leads to higher pressure conditions and harsher environments. In addition, advanced technologies have increased the total capacity of domestic reservoirs, thereby increasing the […]

Selection of stainless steel materials in desalination plant

Desalination plants are known to be very corrosive because of the high temperatures in the environment. Austenitic stainless steels of the previous 300 series are often the preferred materials for desalination plants. In cases where higher corrosion resistance is required, typical material solutions have exceeded the higher alloyed austenite grades of the 300 series stainless steels such […]

The origin of nickel metal

Nickel is a silvery white metal with magnetic properties and good plasticity. With good corrosion resistance, nickel is nearly silver-white, hard and malleable, and has a ferromagnetic metallic element that is highly polished and resistant to corrosion. After dissolved in nitric acid, it is green. Mainly used for alloys (such as nickel steel and nickel […]

Next Page »