The group of Chinese (GB) standard specifications covers iron and carbon and alloy steel within different delivery conditions such as plates, strips, shits, bars, wires, castings, forgings etc. The GB designations for non-alloy common steels and HSLA steels use the prefix letter Q, followed by the yield strength value (MPa).
Metal Boiler Hot Rolled Steel Plate Q345R 1.5 - 200mm High quality Metal Boiler Hot Rolled Steel Plate Q345R 1.5 - 200mm Good Mechanical from China, China's leading boiler plates product, with strict quality control ship steel plate factories, producing high quality ship steel plate products.
Q345 Steel, Q345A Q345B Q345C Q345D Q345E Equivalent Q345 Steel Properties Q345 steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa, it has better properties than Q235. According to GB/T 1591 2008, Q345 material has 5 quality grades:Q345A, Q345B, Q345C, Q345D and Q345E.
Stainless Steel, Special Steel, Compressor Blading, Turbine Blading, Superalloy Supplier. Q345 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
Q345B (GB ) - Worldwide equivalent grades - Steel NumberPost free buying requirement for product Q345B (GB ) Chemical composition and properties of european equivalents (EN) for Q345B (China, GB ):S355JR (1.0045) , Q345B (China, GB ) - European (EU, EN) and wordwide Steel equivalent grades These comparison table is only intended as an indication of the closest khown equivalent grades.
Q345R Pressure Vessel Steel Plate for Boiler ManufactureQ345R is a combination of 16Mng, 19 Mng and GB6654-1996, and GB150 specified the thickness range is 3 ~ 200mm. The limit value of the tensile strength with low carbon content and standard is no more than 540Mpa, and it has good weldability, in common conditions cold and hot crack are not easy to form.