High Strength and Toughness
SA516 Grade 65 is a carbon steel used for medium-to-low temperature pressure vessels, featuring high yield strength (≥450 MPa) and tensile strength (550-700 MPa), with an elongation exceeding 20%. Its exceptional strength and toughness enable it to withstand significant pressure and impact loads, making it suitable for harsh operating conditions such as high pressure and high temperature.
Excellent Weldability
This steel exhibits excellent weldability and can be joined using various welding methods, including manual arc welding, submerged arc welding, and gas shielded welding. During the welding process, it is less prone to defects such as cracks and porosity, ensuring good performance of welded joints.
Superior Hydrogen-Induced Cracking (HIC) Resistance
SA516 Grade 65 steel undergoes special treatment, providing superior resistance to hydrogen-induced cracking. It is suitable for equipment operation in hydrogen-containing environments, effectively preventing hydrogen embrittlement and hydrogen-induced cracking.
Good Corrosion Resistance
This steel maintains stable performance in harsh environments such as acidic, alkaline, and saline conditions, with minimal susceptibility to corrosion and erosion. It is well-suited for corrosive media environments in industries such as chemicals and petroleum.
Good Machinability
SA516 Grade 65 steel possesses excellent machinability and formability, allowing it to be processed using techniques such as cutting, bending, and rolling to manufacture pressure vessels of various shapes and sizes.
