Q620E low alloy high strength steel plate basic performance

Q620E steel plate is a low-alloy high-strength steel,which under GBT16270 standard,Q620E steel plate widely used in drilling rigs,shovels,electric drive wheels,tub,mining products,excavators,loaders and other mechanical devices and other structural parts.

Low-alloy high-strength Q620E steel can be produced by rolling quenching + tempering (quenched and tempered) process,or by hot-mechanical rolling (TMCP) + tempering process,which has short flow and energy consumption Low advantages,as the steel production priority process.

Q620E steel plate production process: molten iron desulfurization → converter smelting → LF refining → RH refining → slab continuous casting machine continuous casting → slab heating → control rolling → ACC → cooling → straightening → finishing → off-line tempering → test → Warehousing.

Q620E low alloy high strength steel multi-alloy design to improve its hardenability, steel plate gets lath bainite,plus the low carbon content of the ingredients,as well as the use of TMCP + tempering process of industrial production of Q620E steel has good strength and toughness.

Q620E Additional technical services include heat treatment (normalization, TMCP, quenching, N + T), Z test (Z15, Z25, Z35), ultrasonic inspection, low temperature impact test, DWTT, PWHT and special parts for cutting and welding into end users.The mill test certificate is issued in accordance with EN 10204 format.