The main reason for cracking at the end of 51CrV4 spring flat steel is: due to improper cooling after rolling, bainite structure appears in 51CrV4 steel structu
51CrV4 is a more advanced spring steel, which is used as a high-load important spring with a large cross-section and a valve spring, piston spring, and safety v
51CrV4 is a high-strength steel suitable for quenched and tempered springs, which combines the characteristics of springs with excellent wear resistance and imp
At present, the commonly used steel types for diamond welding saw blade substrates are 75Cr1, 60Mn, 51CrV4, 50Mn2V and 30CrMo.60Mn is the most common low-end st
Hot cracks are generated at high welding temperatures. When crystallized, the eutectic with low melting point forms a liquid film, which will lead to cracking u
The influence of Cu and P elements on 05CuPCrNi steel is explained in the previous article,this article briefly describes the effects of Cr and Ni Elements on 0
09CuPCrNi-A steel plate is a kind of weathering steel (atmospheric corrosion resistant steel), which is used in sulfur-containing flue gas, air preheater, econo
There is no standard size for steel plate SM570 as it can be produced in a range of sizes depending on the requirements of the project. However, SM570 steel pla
SM520C steel is a low-alloy, high-strength structural steel commonly used in the construction of bridges, buildings, and other infrastructure projects. The chem
The SPA-C steel billet is hot delivered and hot loaded to a 1500mm hot continuous rolling mill for rolling. SPA-C steel has a high Cu content, and "copper embri
·Good corrosion resistance: SPA-C steel contains more copper, chromium, nickel and other alloying elements, which can form a dense passivation layer to p
The continuous casting process is fully protected, and steel plate mold slag for container steel is added to the crystallizer. SPA-C steel is prone to breakout
Pay attention to the following points when welding SPA-H weathering steel:
1.Select the appropriate welding material and welding process. SPA-H steel contains c
Smelting Process
The molten iron required for smelting SPA-H steel must undergo desulfurization pretreatment. Before entering the converter, the sulfur content
SPA-H weathering steel is a low-alloy structural steel. Its chemical composition contains not only a certain amount of carbon (C), but also other elements such
Due to the factors of different regions, environments and climate, the time for forming a stable oxide film on the surface of 05CuPCrNi also varies greatly. In
The main purpose of adding C, and P to 05CuPCrNi is to improve the corrosion resistance and solid solution strengthen ferrite.Cu is the most important and most
05CuPCrNi steel is a high-strength weather-resistant steel plate (atmospheric corrosion-resistant steel), which has the characteristics of high-quality steel su
ST52 is a low carbon manganese steel with good impact resistance and tensile strength. The thickness of plate steel ST52 can vary depending on the application a
ST37-2 steel is a carbon structural steel commonly used in the construction of buildings and structures. Its equivalent grades include ASTM A36, JIS SS400, and
Meaning:
S355J2WP is a corrosion-resistant steel under the EN 10025_5 standard, "S" means structural steel, "355" means the yield strength is 355MPa, "J2" refer
After adding phosphorus, copper, chromium, nickel and other trace elements to the S355J2WP steel, the surface of the steel will form a dense and highly adhesive
Before weathering treatment, we must consider the following three points:
a.The following conditions are not suitable for weathering treatment of S355J2WP: (1)
There are many welding methods for gas cylinders, commonly used are electrode arc welding, submerged arc welding, argon tungsten arc welding, and melt inert-gas
In the manufacturing process, controlling the inclusions and gas content in SG295 steel is the key to welding steel cylinders, and the purity of SG295 molten st
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