The difference between A514 grade B quenched and tempered steel, Q420D steel and Q460D steel: Q420D steel has good mechanical properties and weldability, good cold and hot workability. Q420D steel is mainly used for manufacturing mining machinery, heavy vehicles, ships, bridges, medium and high pressure boilers, vessels and other large welding and structural parts. A514 grade B quenched and tempered steel, Q460D steel has high strength, good plasticity and toughness, good weldability and good cold and hot workability. Q460D steel is mainly used for manufacturing engineering machinery components, such as mining machinery, forklift truck, transport vehicle, bridge, medium and high pressure boiler and other large-scale welding structural parts.
Standing at a new historical starting point, we adapt to the requirements of supply side structural reform, adhere to the overall strategy of "innovation driven, quality leading, A514 grade B quenched and tempered steel quality improving and efficiency increasing, transformation and development", and constantly improve the development concept and development level with a forward-looking vision and grand vision. Now we have been ranked the A514 grade B quenched and tempered steel International leading steel materials supplier.
We can produce steel plate, steel pipe, steel coil, and also carry out a series of A514 grade B quenched and tempered steel processing services, steel plate cutting, welding, etc. we have advanced production technology and production equipment, which can meet the needs of customers to the greatest extent. Whether it is deep processing or cutting, we will communicate with customers in detail to choose the best A514 grade B quenched and tempered steel processing method and production technology.
The final heat treatment of quenched and tempered alloy steel, A514 grade B quenched and tempered steel is quenching and high temperature tempering. The hardenability of quenched and tempered alloy steel is high, and oil is generally used. When the hardenability is very high, it can even be air cooled, which can reduce the defects of heat treatment. The final properties of quenched and tempered alloy steel depend on tempering temperature. Generally, it is tempered at 500 ℃ - 650 ℃. The required properties can be obtained by selecting tempering temperature. In order to prevent the second kind of temper brittleness, fast cooling (water cooling or oil cooling) after tempering is beneficial to the improvement of toughness.
We guarantee to provide all technical data required by users within one hour to provide reasonable quotation; to provide A514 grade B quenched and tempered steel reasonable quotation for products consulted by users within one hour; to provide investigation reception: we guarantee to receive the investigation of users at any time and provide various convenient conditions for users.
