- 
          
          
          Seamless steel pipes can be divided into hot rolled seamless steel pipes, hot expanded seamless steel pipes, and cold drawn seamless steel pipes according to di 
- 
          
          
          A106 seamless steel pipe belongs to American standard steel pipe, A106 includes A106-A, A106-B. ASTM A106 seamless steel pipe includes two processes, cold drawn 
- 
          
          
          The seamless steel pipe is made of perforated whole round steel, and the steel pipe without weld seam on the surface is called seamless steel pipe.The types of 
- 
          
          
          A36 steel is a low carbon steel with a carbon content of less than 0.3%, which allows A36 steel to be easily machined, welded and formed. The low carbon content 
- 
          
          
          304L low carbon stainless steel304L low carbon stainless steel is a universal stainless steel material, and it is also a stainless steel with austenitic structu 
- 
          
          
          51CrV4 steel plate is an alloy spring steel. 51CrV4 steel plate has excellent mechanical properties and processing properties. Also known as ISO 51CrV4 steel, 5 
- 
          
          
          1. Both 42CrMo4 steel plates and 42CrMo steel plates belong to alloy steel plates. 42CrMo4 alloy steel plate has the characteristics of high strength, high hard 
- 
          
          
          1. Pay attention to the natural conditions of the site. Indoor and outdoor, inland coastal areas, the salt content and air humidity in the air at different loca 
- 
          
          
          1. Different colors: stainless steel contains more chromium and nickel metals, and the exterior color is mostly bright silver. Carbon steel is mainly carbon and 
- 
          
          
          It is a common phenomenon that steel plates come into contact with air and produce chemical reactions and rust! So how to prevent the steel plate from affecting 
- 
          
          
          In general, the main hazards of Nitrogen are as follows:1.The precipitation of Fe4N leads to the aging of steel.2.Reduce the cold workability of steel.3.The bri 
- 
          
          
          The influence of temperature1. Positive temperature influence: the overall influence law is that the temperature rises, the strength of the steel decreases, and 
- 
          
          
          How to solve the three quality problems of false welding, welding impermeability and welding port penetration that often occur in weather resistant steel weldin 
- 
          
          
          Stainless steel has three major characteristics: weldability, corrosion resistance, and heat resistance.Weldability: under normal circumstances, the weldability 
- 
          
          
          The choice of boiler pipe material depends on the application environment, temperature, etc.If it is a low and medium pressure environment, then you need to use 
- 
          
          
          Complicated section steel is also called special-shaped steel, which is a kind of section steel and is different from the name of simple section steel. Complex 
- 
          
          
          Boiler steel 16Mo3 is a chromium-molybdenum steel alloy of pressure vessel grade specified by EN10028 and is used in high-temperature working environments. Boil 
- 
          
          
          The main differences between low carbon steel and alloy steel are as follows:1. The concept is different: low carbon steel is carbon steel with a carbon content 
- 
          
          
          Because boiler steel plates are products for important purposes, the safety and reliability requirements are strict, and the manufacturing technology is difficu 
- 
          
          
          1.High wear resistance: The alloy system commonly used in international abrasion resistant composite steel plate is adopted, which has excellent wear resistance 
- 
          
          
          ASTM A516 Grade 70 steel is intended for use in pressure vessels where increased strength is important. ASTM A516 Grade 70 steel is one of the most popular stee 
- 
          
          
          ASTM A572 Grade 50 steel belongs to the high-tension low-alloy steel in the ASTM standard. ASTM A572 Grade 50 steel can also be called high-stretch low-alloy Ni 
- 
          
          
          1. The butt joint of high-strength alloy steel plate adopts manual welding electrode arc welding. The groove of high-strength alloy steel plate adopts multi-lay 
- 
          
          
          The 09CuPCrNi-A weather resistant steel plate should be prevented from being damaged during bundling and transportation, and the bundling signs should be consis 
- 
          
          
          In terms of performance, compared with carbon steel, the advantages of low-alloy steel are mainly reflected in the following aspects:1、Hardenability of low all