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As we all know, due to the process characteristics of "three highs and one low", hot rolling technology will cause certain defects in rolled steel sheets. The main disadvantage is that the iron oxide scale produced during high temperature rolling (800 ℃
Based on the principle of controlled rolling and controlled cooling, this paper studies the effect of rolling process parameters on SPA-H, formulates a reasonable rolling process for weathering steel SPA-H, and successfully develops a new steel grade SPA-
According to the theory of controlled rolling and controlled cooling, by reasonably formulating process parameters such as temperature, speed and reduction, the controlled rolling and controlled cold rolling process of SPA-H weathering steel is formulated
In recent years, S355J2W weathering steel has been widely used in high-speed rail bogies. Stress relief annealing is usually required after bogie welding, but there are few literatures on its heat treatment process. The annealing temperature control range
Weathering steel plate, which is a natural weathering steel plate, has atmospheric corrosion resistance of steel with characteristic corrosion and oxidation, and is continuously obtained in many fields. Common basic properties and states of various weathe
S355J2G3 low-alloy steel is produced in accordance with European standards, which is slightly higher than the Q345 series steel plate in domestic GB/T1591-1994, and is widely used in the railway vehicle manufacturing industry. The chemical composition of
S355J2G3 steel is a European standard steel with the composition of C ≤0.20, Si≤0.55, Mn ≤1.60, P≤0.035, S≤0.035.
S355J2G3 is a low-alloy high-strength structural steel, and S355J2G3 is roughly equivalent to GB's Q345D. S355J2G3, J2G3 means that the del
S355J2W meaning: S is structural steel, 355 is the yield strength of 355MPa, J2 requires -20° impact, the letter W indicates that the steel has the ability to resist atmospheric corrosion.
Fe 510 steel is a structural billet for structural applications. Fe 510 is a material class and designation defined in the ISO 630 standard. ISO 630 is the international material standard for billets used for general structural purposes. Fe 430 steel is c
S235J2W steel plate has strong stability at high temperature. S235J2W steel plate can be used within 500℃. Other special requirements can be customized for production and can be used within 1200℃. Ceramics, polyurethane, polymer materials, etc. are pasted