Advantages of duplex stainless steel
1. Compared with austenitic stainless steel 1) The yield strength of duplex stainless steel is more than double that of ordinary austenitic stainless steel, and it has sufficient plastic toughness required for forming. The thickness of storage tanks or pressure vessels made of duplex stainless steel is 30-50% less than that of commonly used austenitic stainless steel, which is conducive to reducing costs. 2) It has excellent resistance to stress corrosion cracking, especially in chloride ion environments. Even duplex stainless steel with the lowest alloy content has
Why can't stainless steel screws and nuts be used together?
We know that self-tapping screws do not need nuts. Because it is naturally cool to prevent loosening. But you have heard that stainless steel screws cannot be used with nuts. Why is this? The reason for this statement is that when assembling low-temperature piping flanges, stainless steel bolts and nuts are used to tighten, and they are easy to bite after a period of time. This is because after tightening, the overall structure of the screws and bolts will undergo slight deformation, the bite will become tighter, or the screws and bolt holes will fuse after a
What are the uses of various stainless steel bolts?
Stainless steel bolts generally refer to steel bolts that are resistant to corrosion by media such as air, water, acid, alkali, and salt. Stainless steel bolts are generally not easy to rust and are durable. They can be used in environmental protection equipment, medical equipment, communication equipment, and other fields. According to the different components of the alloy, the focus is on stainless steel and acid resistance. Although some steel is stainless steel, it is not necessarily acid-resistant, and acid-resistant steel is usually stainless steel. In p
Resolution on Promoting the Healthy Development of Fastener Exports
After decades of hard work, my country's fastener industry has gradually grown and developed into the world's largest fastener manufacturing country and a major fastener exporter. Its export products are distributed in various countries and regions around the world and are widely welcomed. We have established deep friendships through friendly exchanges and interactive communication with our peers from all over the world. We are honored to contribute to China's fastener industry and proud of the world-renowned achievements of Chinese fasteners! The recent world
Common problems and solutions for stainless steel screws
Stainless steel screws and nuts play an important role in our daily lives, but did you know? They may encounter some common problems during use! Anti-loosening problem: Stainless steel screws may loosen, which is usually because the connection between them and the product material is not tight enough. To solve this problem, you can try to use special materials such as engineering resin materials for resilient connection, or apply a layer of anti-drip glue on the stainless steel thread to increase adhesion. Rust problem: Dust, dissimilar metal particles, organic juice
The stainless steel standard fastener industry has roughly gone through the following four processes
1. After 20 to 30 years of development, a large number of stainless steel standard parts enterprises have entered a new stage of development from extensive type. This stage of development has made more stainless steel standard parts enterprises pay more attention to energy conservation and environmental awareness. In the new period, the majority of stainless steel standard parts enterprises can improve their management quality and adapt to social needs for development. 2. A large number of stainless steel screw enterprises have begun to move towards a new stage of development.
Stainless steel standard fasteners
Stainless steel standard fasteners Stainless steel standard fasteners are a category that includes stainless steel standard fasteners, which are beautiful, durable, and highly corrosion-resistant. They are usually used to fasten more expensive machine parts. With the progress of society, higher requirements are also put forward for stainless steel standard fasteners. Stainless steel standard fasteners usually include the following 12 types of parts: 1. Bolts: A type of fastener consisting of a head and a screw (a cylinder with external threads). It n
Precautions for welding stainless steel pipes
Precautions for welding stainless steel pipes The development of steel pipe technology began with the rise of the bicycle manufacturing industry. The development of oil in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry, and the drilling and transportation of oil and natural gas have all strongly promoted the development of the steel industry in terms of variety, output, and quality. 1. Use a power supply with vertical external ch
Physical properties of stainless steel
Physical properties of stainless steel compared with carbon steel 1. Density The density of carbon steel is slightly higher than that of ferrite and martensitic stainless steel, but slightly lower than that of austenitic stainless steel; 2. Resistivity The resistivity increases in the order of carbon steel, ferrite, martensitic and austenitic stainless steel; 3. The order of linear expansion coefficient is also similar, austenitic stainless steel is high and carbon steel is the sma
Problems that may occur during stainless steel cutting
Problems that are easy to appear during the cutting of stainless steel: First, stainless steel is strong and easy to deform. During the processing and cutting of stainless steel, due to its certain elongation, especially austenitic stainless steel, it will undergo large plastic deformation, which makes the cutting process difficult. In addition, the strength of stainless steel itself is relatively large, which increases the double resistance during the cutting process and strengthens the cutting force. Second, the cutting temperature of stainless steel is hi
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