SA516GR7 (HIC) steel plate is a high-strength, low-alloy steel plate with excellent heat and pressure resistance. Among them, sa denotes"Steel plate for high-temperature pressure vessels", 516 means that its minimum tensile strength is 516MPa, GR7 means that its material grade is 7, and HIC means that the steel plate has"Hydrogen-induced cracking susceptibility"。
SA516GR7 (HIC) steel plate is commonly used in the manufacture of vessels and boilers at high temperatures and pressures. Its main application areas include petrochemicals, natural gas processing, power stations, and other industrial fields that need to withstand high-pressure, high-temperature environments.
The chemical composition of the steel plate mainly includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and chromium (Cr). Typical chemical compositions range as follows: Carbon content between 024-0.31% with a silicon content of 015-0.40%, with a manganese content of 070-1.30%. At the same time, the content of sulfur (S) and phosphorus (P) is required to be low, usually less than 0025%。The reasonable ratio of these chemical components can provide excellent mechanical properties and high temperature resistance of steel plates.
SA516GR7 (HIC) steel plate has excellent heat resistance, which can maintain stable performance for a long time at higher temperatures, and is not easy to deform or crack. At the same time, it also has high compressive performance, and can withstand the load in a high-pressure environment without deformation or cracking. Wugang Xinze Steel
Another important feature is its hydrogen-induced cracking susceptibility (HIC). This means that cracking can occur when the steel plate is subjected to hydrogen. Therefore, it needs to pay special attention to the problem of hydrogen embrittlement when manufacturing containers or equipment, and take corresponding prevention and control measures to ensure that hydrogen-induced cracking does not occur during use. Li Tang
In addition, SA516GR7 (HIC) steel plate also has good weldability, which can be joined using common welding methods, such as arc welding, gas shielded welding, etc.
Overall, SA516GR7 (HIC) steel plate is a high-strength, low-alloy steel plate with excellent heat and pressure resistance. It is widely used in the field of high-temperature and high-pressure vessel and boiler manufacturing, and follows the relevant standards and specifications to ensure the safety and reliability of the equipment under extreme working conditions. Attention should be paid to the control of hydrogen-induced cracking susceptibility during use to ensure the working life and safety of the equipment to the greatest extent.