Q890D is a quenched and tempered steel plate for high-strength structures. The "Q" in the grade means yield, "890" is the yield value, and "D" means grade. It corresponds to other grades: WQ890D, S890Q.
Q890D staal plaat implementatie standaard: GB/T 16270-2009%.
Q890D staal plaat levering status (hitte behandeling): het Afschrikken en en het temperen (het blussen en het ontlaten)
Q890D quenched and tempered high-strength steel is suitable for manufacturing steel structural parts such as coal mine hydraulic supports, heavy vehicles, and engineering machinery that require good welding performance. For example, drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts used in mining and various engineering constructions use quenched and tempered high-strength steel. Low carbon equivalent composition design, with good welding performance; shot blasting treatment before quenching of steel plate, radiant tube heating of quenching furnace, non-oxidation atmosphere control and other measures, so that the steel plate has good surface quality; special roller design of quenching machine, zoned water supply cooling etc., the quality-guaranteed steel plate has uniform mechanical properties and good plate shape.
