Standing at a new historical starting point, we adapt to the requirements of supply side A572 grade 50 ms steel coil structural reform, adhere to the overall strategy of "innovation driven, quality leading, 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 International leading A572 grade 50 ms steel coil steel materials supplier.
Our company has 80 tons A572 grade 50 ms steel coil, 7mm thickness VL Grade A hot rolled sheets in Tianjin stock. Below is the ship steel VL A plates available specification(mm): 7*2850*9850, 7*1770*6000, 7*1770*6000, 7*1950*10600, 7*2300*6000, 7*3000*12000, 7*3030*6900, 7*3180*8600, 7*2950*7350, 7*1950*10500, 7*2350*7700, 7*3030*7900, 7*3100*9300, 7*2920*9900, 7*2850*11400, 7*2400*11000, 7*3030*8000, 7*3080*7650, 7*1910*6000, 7*2950*9400.
Corrosion resistant steel plate, as a new generation of advanced steel material, has 2-5 times of atmospheric corrosion resistance as ordinary carbon steel such as A572 grade 50 ms steel coil, and the longer the service time, the more prominent the corrosion resistance. Due to its characteristics of rust resistance, coating free, thinning and consumption reduction, labor saving and energy saving, corrosion resistant steel plate can be applied to steel structures exposed to the atmosphere for a long time, such as buildings, vehicles, bridges, towers, etc., and can also be used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, etc.
The hot rolling method is to heat the A572 grade 50 ms steel coil steel material to about 1000 ℃ ~ 1250 ℃ and use the rolling mill to roll it. The traditional hot rolling process is generally divided into the following two steps: the first step is to use the primary rolling mill or billet rolling mill to roll the ingot, billet or continuous casting billet into a certain shape and size of billet. This kind of A572 grade 50 ms steel coil rolling process is usually called semi-finished product production, also called blank production.
According to GBT3077, 42CrMo steel chemical composition should be within the range (%): 42CrMo carbon content is 0.38-0.45 (C), Silicon content is 0.17-0.37 (Si), Manganese content is 0.50-0.80 (Mn), Chrome content is 0.90-1.20 (Cr), Molybdenum content is 0.15-0.25 (Mo). The high Cr content contrivutes to high strength of 42CrMo steel, with min. yield strength of 930 Mpa, and min. tensile strength of 1080 Mpa. The common heat treatment for A572 grade 50 ms steel coil, 42CrMo steel is quenching and tempering.
Before delivering our hot rolled plate product we apply various tests to check the quality of carbon steel A572 grade 50 ms steel coil plates such as- mechanical test, chemical test, hardness test, toughness test, eddy current test, impact test, micro test, flaring test, flattening test, etc. We are provided best packing for structural steel plates to avoid rust. Our after-sales service team will contact you if you have any question.
