nm300 plate chemical composition coil size
Our after sales department is an very important part of our department structures. After the customer receive steel materials, our after sales department will follow up regularly and solve problems for them in time if they have the needs. We romise to return the goods for free for its lifetime if it is quality of the steel material itself. Meanwhile, if you have any advice or complaints, also welcome to feed back to our after sales department, and we are trying to give better service to you.
Both the cross rolling method and the extrusion method must first heat the tube blank or ingot, and the steel tube produced is called hot rolling tube. Steel pipes produced by hot working can sometimes be cold worked as required. There are two methods of cold working: one is cold drawing, that is, drawing the nm300 plate chemical composition steel pipe through the drawing die to make the steel pipe gradually thin and elongate; the other is cold rolling, which is the method of applying the hot rolling mill invented by the menesmann brothers to cold working. The cold working of nm300 plate chemical composition seamless steel pipe can improve the size accuracy and finish of steel pipe, and improve the mechanical properties of materials.
Q/BQB 310-2009 cold formed hot rolled automotive structural steel Material: QSTE460TMChemical composition (melting analysis)%C: ≤0.12, Si: ≤0.35, Mn: ≤1.60, P: ≤0.03, S: ≤0.025, Ti: ≤0.22, Nb: ≤0.09, Al: ≥0.01Mechanical properties of QSTE460TM steelYield strength MPa: ≥460Tensile strength MPa: 520-670Elongation: ≥19
We had a wonderful trip in Phuket Island, Thailand. At the end of 2019, in order to thank employees for their hard work for a year and enrich their lives, our company organized a pleasant trip to Phuket Island, Thailand. The tour lasted 6 days and 5 nights, and returned by plane on the evening of December 27. We took off in Zhengzhou at about 5 o'clock in the afternoon on the 22th December.




