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 S960QL spec 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 S960QL spec seamless steel pipe can improve the size accuracy and finish of steel pipe, and improve the mechanical properties of materials.
ASME SA514 gr F structural quality steel chemical composition%C: 0.10-0.20, Si: 0.15-0.35, Mn: 0.60-1.00, P max.: 0.035, S max.: 0.035, Ni: 0.70-1.00, Cr: 0.40-0.65, Mo: 0.15-0.25, V: 0.03-0.08, Cu: 0.15-0.50, B: 0.001-0.005The mechanical properties in the plate thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18
The company sells special wide and thick steel plates of various specifications and materials such as Wuhan Iron and Steel, Anshan Iron and Steel, Chongqing Iron and Steel, Baosteel and other materials all year round. Available specifications for S960QL spec: thickness 8-650mm, width 1.5-4.02m, length 3-27m, unit weight 35 tons. Our company can set rolling futures according to user requirements, and stock a large number of stocks of various materials (including plates and short-foot plates) for many years, and can also cut and draw materials and deliver special-shaped finished or semi-finished products according to user requirements.
On 18th December, 2019, BBN Group decorated the office S960QL spec building with many kinds of pendant. There were christmas trees, gifts and snowflakes in the logo wall. At the same time, we made a video at the Zhengzhou office to celebrate the coming Christmas holiday. Our S960QL spec oversea sales team and market delevopment team wish you Merry Christmas and Happy New Year. Besides, we prepare some meaningful gifts for our old customers.