In the manufacturing process, controlling the inclusions and gas content in SG325 steel is the key to welding steel cylinders, and the purity of SG325 molten st
Cooling of SG325 steel adopts two-stage cooling process. The degree of supercooling can be increased through a period of cooling. When SG325 steel is cooled to
Steel plate cutting generally refers to the process of mixing industrial gas and oxygen to reach the cutting temperature, melting, blowing slag and dividing the
A302GrB container steel plate bears different pressure and strength due to the manufactured container. Generally, the normal pressure is 314MPa or higher, and t
1. A302GrB steel plate is a manganese-molybdenum alloy steel plate for American standard pressure vessels. A302GrB pressure vessels must bear different pressure
Firstly, a reasonable heating system should be established to strictly control the soaking temperature, heating temperature, and heating time of ASTM-A283 steel
A283GrC steel plate is a high-strength steel plate with excellent compression resistance, heat resistance and impact resistance. Its good corrosion resistance,
A283GrC steel plate is a low carbon steel with good corrosion resistance. Its anti-corrosion performance is composed of rich chromium, manganese, copper and sil
A588 corten steel is often used in railway infrastructure projects due to its unique properties that make it suitable for outdoor applications.Firstly, A588 cor
A588 Gr B corten steel is suitable for withstanding harsh environmental conditions due to its unique composition and properties.The steel is primarily composed
1. S355JR steel plate is flame-heated and surface quenched.
This heat treatment process uses a combustible gas flame to heat the surface of the S355JR steel pla
S355JR is a low-alloy high-strength steel commonly used in construction, bridges and machinery manufacturing. Its chemical composition mainly includes elements
S355JR steel plate has excellent mechanical properties and belongs to high-strength low-alloy structural steel. In the quenched state, the tensile strength, yie
Q195 steel belongs to carbon structural steel. It has excellent plasticity, toughness and welding performance. The disadvantage is that its strength is relative
The technological process of Q195 carbon steel smelting usually includes the following steps:
1. Raw material preparation: Screen and pretreat high-quality raw
Galvanized Q195 is hot-dip galvanized on the surface of Q195 steel, because Q195 is a steel grade named after yield strength, yield strength ≤ 195Mpa, Q195 s
20Cr steel is a high-carbon chromium bearing steel, commonly used in the manufacture of mechanical parts and automotive engine parts, etc. To weld 20Cr steel, t
The weldability of 20Cr alloy steel is poor, and it is not easy to solder at room temperature. Stress annealing should be done immediately after welding of 20Cr
The level of operators is an important factor affecting the quality of 20Cr steel. At the same time, there are many reasons such as equipment, materials and pro
Common welding defects of Q345R steel include appearance defects and internal defects. Appearance defects include undercut, depression, surface pores, cold crac
The methods to reduce welding deformation during welding of Q345R steel mainly include:
1. Reasonable assembly sequence and welding sequence. To correctly selec
In the metal structure, Q345R steel is very easy to produce welding stress and various deformations. Welding stress and deformation directly lead to welding cra
13CrMo44 steel generally has the following characteristics during welding:
1. Hardenability
The hardenability of steel depends on its carbon content and alloy c
At present, the application of low-alloy heat-resistant steels in the petrochemical industry is becoming more and more common, especially Cr-Mo type heat-resist
13CrMo44 steel plate belongs to chrome-molybdenum alloy boiler and pressure vessel steel plate, and the implementation standard of 13CrMo44 steel plate is the s
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