1. → Q245R Profile ← Q245R boiler and pressure vessel steel plate is in a category - boiler plate, for example: Q245R. Q- "Qu" Hanyu Pinyin first letter. 245- yield strength values. R: "content" pinyin first letter. Has a special composition and performance: Mainly used to make pressure vessels used for different purposes, temperature, corrosion for, that should be the choice of container board material, are not the same. Delivery status: hot-rolled, controlled rolling, normalizing. After discussion between parties plus do testing. Such as: 20R, 16MnR, 14Cr1MoR, 15CrMoR, 09MnNiDR, 12Cr2Mo1R, 16MnR (HIC), 20R (HIC), and so the above classification is commonly used grades; there are foreign brands, such as:. SA516Gr60, SA516GR70 so on. Q245R steel can be added niobium, vanadium, titanium, its content should fill in the quality certificate, the sum of the above three elements of content should be not more than 0.050% 2. → ← old signs were No. 20R \ 20G is the previous process standards : GB6654, GB713-86 Q245R is now the new grades, the standard is: GB713-2008 both is the same material, just the name is not the same. 3. → ← grade chemical composition of chemical elements (mass fraction) /% C Si Mn Cr Ni Mo Nb VPS Alt Q245R ≤0.20 ≤0.35 0.50-1.00 0375 * 8201700 156 * 375 * 84 * 700 ≤0.025 ≤0.015 ≥0.020 4. Mechanical Properties ← → plate thickness / mm Tensile strength R / (N / mm2) yield strength R / (N / mm2) Elongation A /% Temperature / ℃ impact absorption energy KV2 / J 180 ° bending test at a bending diameter (b ≥35mm) 3-16 400-520 ≥245 ≥25 0 ≥31 d = 1.5a> 16-36 400-520 ≥235 ≥25 0 ≥31 d = 1.5a> 36-60 400-520 ≥225 ≥25 0 ≥31 d = 1.5a> 60-100 390-510 ≥205 ≥24 0 ≥31 d = 2a> 100-150 380-500 ≥185 ≥24 0 ≥31 d = 2a 5. → boiler container board popular brands ← Q245R Q345R Q370R 13MnNiMoR 15CrMoR 12Cr2Mo1R 14Cr1MoR and so is the new standard GB713-2008 outside the main subject 10CrMo910 11CrMo9 -10 15Mo3 13CrMo44 19Mn6 BHW35 13MnNiMo54 10Cr0.5Mo 2.25Cr1Mo 1.25Cr0.5Mo 16Mo3 13CrMo4-5 P265GH P295GH P235GH P355GH. 6. → ← prospect petroleum and petrochemical industry, chemical equipment manufacturing enterprises, power plant construction, boiler and pressure vessel manufacturing and other enterprises with Q245R production reactors, heat exchangers, separators, tank, gas cans, gas cans, nuclear reactor pressure vessel, liquefied petroleum gas bottles, spiral case, due to the petrochemical, coal conversion, nuclear power, steam turbine cylinder, thermal power and other use of harsh conditions, including corrosive medium large and complex equipment such as: water tower, a second conversion furnace, coke tower, desulfurization tank, converted gas waste heat boiler, furnace methanation reactor, regenerator, hydrogenation reactor, methanation heaters, steam generators and other gas conversion equipment and components manufacturing project construction extensive use Q245R (Hic) steel million tons. In the foreground are exported to USA, Canada, Australia, India, Europe, very promising. Supplying European customers have been more than 20,000 tons. Wugang leading production technology, product Wugang spot more, if necessary set the bar, for 8mm-120mm-650mm thick widest to 3900mm.