12mm thick steel plate hot rolled S45C mild steel 1.Specifications of ASTM Steel Plate Round bar Diameter(mm) Length (mm) 20~800 3000~5800 Plate Thickness(mm) Width (mm) Length (mm) Max:800 1600~2300 3000~5800 2.Chemical compositon(%) C Si Mn Cr Ni Cu S P 0.42~0.50 0.17~0.37 0.5~0.8 max0.25 max0.3 max0.25 max0.035 max0.035 4.Characteristic Nice machanical porpertys and worse hardenability,so, it is used for machine parts 5.Application of ASTM Steel Plate 1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc. 2): Can be made into mould template, mortise pin, column. 3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear... 4): This kind of steel is the most common blanks and materials of shaft part. 1.All products must through the following quality tests to meet you requirments! 100% Ultrasonic according to the test standards:SEP1921-84. The flaw detection is ASTM A388 / API 6A PSL3 or SEP1921 /API 6A PSL3.