Medium plate：
 The thickness more than 4mm is attributed to medium plate. Of which, the thickness between 4.5-25.0mm is attributed to medium plate, the thickness between25.0-100.0mm is attributed to heavy steel plate, the thickness more than 100.0mm is attributed extreme heavy steel plate. Currently, they are produced by hot rolled steel. There are two types: general medium steel plate and high quality medium steel plate。
General Medium Steel Plate：
General medium steel plate is the medium steel plate which hot roll from the base of general carbon constructional steel or low-alloy structural steel.
Available types of general medium steel plate:
Common straight carbon rimmed steel plate, Common straight carbon killed steel plate, Low alloy steel plate, Bridge steel plate，shipbuilding steel plate，Steel boiler plate，Pressure vessel steel plate，mild steel checkered plate，automotive frame steel plate.
High Quality Medium Steel Plate：
High quality medium steel plate is the medium steel plate which hot roll from the base of various kinds of high quality steel.
High quality medium steel plate classification by grade and application:
Carbon constructional quality steel plate, Carbon tool steel plate, structural alloy steel plate, alloy tool steel plate, ring steel plate, bearing steel plate, rapid tool steel plate, stainless steel plate, 90 series steel plate, armor plate, pure iron steel plate, high-pressure steel plate, weathering steel plate, pressure-proof steel plate, low-magnetic steel plate, Carbon constructional quality steel plate and stainless steel plate is the most commonly used high quality medium steel plates.
Application
1.Mechanical Industry 2. Automobile Industry 3. Engineering Industry
4. Metalworking Industry 5. Light Manufacturing Industry 6.others.
Steel grade
Carbon constructional quality steel: GB699：08F、08、15、20、15Mn、20Mn
Carbon constructional quality steel: GB711：08F、08、15、15F、20、20F、20Mn
Carbon constructional steel: GB/T700-88：Q195、Q215A、Q215B、Q235A、Q235B、Q235C、Q235D、Q255A、Q255B、Q275
Low-alloy high-tensile structural steel: GB/T1591-1994：Q295A、Q295B、Q345A、Q345B、Q345C、Q345D、Q345E、Q390A、Q390B、Q390C、Q390D、Q390E、Q420A、Q420B、Q420C、Q420D、Q420E、Q460C、Q460D、Q460E
GB712 Hull-structural shipbuilding steel:
Common strength level, A、B、C、D；
High strength level, AH32、DH32、EH32、AH36、DH36、EH36.
GB713 Boiler carbon steel & low alloy steel plate: 20g、22Mng、15CrMog、16Mng、19Mng、13MnNiMoNbg、12Cr1MoVg
GB3531 Low alloy steel plate for low temperature pressure vessel: 16MnDR、15MnNiDR、09Mn2VDR、09MnNiDR
GB6654 steel plates for pressure vessel use:20R、16MnR、15MnNbR、15MnVR、15MnVNR、18MnMoNbR、15Cr1MoR
GB3273 Hot roll steel plate for automotive frame use:09MnREL、06TiL、08TiL、10TiL、09SiVL、16MnL、16MnREL
GB4171 High weathering structural steel : 09CuPCrNi-A、09CuPCrNi-B、09CuP
Size
Available Width: 1500mm，1800mm，1900mm，2000mm，2200mm，2400mm，2500mm
Available Length: 6m, 8m 120m, 12m and etc.
According standard
GB699 Carbon constructional quality steel；
GB711 Carbon constructional quality steel；
GB/T700-88 Carbon constructional steel；
GB/T1591-1994 Low-alloy high-tensile structural steel；
GB3274 Carbon constructional hot roll heavy steel plate and steel strip;
GB712 Hull-structural steel;
GB713 Boiler carbon steel & low alloy steel plate;
GB3531 Low alloy steel plate for low temperature pressure vessel,
GB6654 steel plates for pressure vessel use;
GB3273 Hot roll steel plate for automotive frame use;
GB3277 Mild steel checkered plate;
GB4171 High weathering structural steel.
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