Our company's A573 Gr 70 carbon steel plate power boilers, heating furnaces of double bars, double high lines and medium and thick plates all adopt heat storage technology, which can fully use blast furnace gas; the ladle baking, Maerz active lime kiln and medium and thick plate heat treatment furnace all burn converter gas, which can improve the A573 Gr 70 carbon steel plate utilization rate of secondary energy and realize negative energy steelmaking in steelmaking process.
After quenching and tempering, the 40Cr alloy steel plate has good comprehensive mechanical properties, good low-temperature impact toughness and low notch sensitivity. The hardenability of steel is good. It can be hardened to Ф28～60mm in water quenching and Ф15～40mm in oil quenching. In addition to quenching and tempering, 40cr sheet is also suitable for cyanidation and high-frequency quenching.
Cold rolled steel sheet has high strength, high hardness, high surface finish and is generally thin plate, which can be used for stamping. The production process of A573 Gr 70 carbon steel plate, hot-rolled and cold-rolled steel plates is different. Hot rolled steel plate is rolled at high temperature, while cold rolled steel plate is rolled at normal temperature. Generally speaking, cold-rolled steel plate has better strength and hot-rolled steel plate has better ductility.
The allowable temperature of A573 Gr 70 carbon steel plate, boiler steel is mainly determined by strength condition. Different steels have different mechanical properties and high temperature properties. Even for the same kind of steel, the tensile strength, yield strength and rupture strength vary greatly with the working temperature, and decrease with the increase of working temperature. In order to ensure the safety of A573 Gr 70 carbon steel plate work, the actual stress of A573 Gr 70 carbon steel plate under the working temperature should be less than the allowable stress determined by the tensile strength, yield limit and permanent strength of A573 Gr 70 carbon steel plate under the temperature.
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Our company has strict quality control standards. If you want to visit our factory, you are welcome at any time! We produce a lot of steel products every month to export A573 Gr 70 carbon steel plate to all over the world. Because our customers are from all countries, they will order a large number of steel products from our company every month.
The company's after-sales service team is a high-quality professional team. Most after-sales employees have rich service experience and have reached the level of after-sales engineer. The after-sales department implements the after-sales personnel responsibility system and a 24-hour response mechanism. The company's advanced customer relationship management system provides customers with "standardized and streamlined services". A sound customer relationship maintenance system, and a "one-stop" customer satisfaction tracking system, all reflect our strong after-sales service guarantee.
