Dec 12, 2019 · They are not much different in chemical composition. It is worth noting that the Al of Q345C, D and E increased by 0.015, harmful elements P and S decreased successively, and the test temperature of low-temperature impact work was low and the price was higher.Q345 series steel has good mechanical properties, good plasticity and weldability, and is widely used in buildings, Bridges, GB/T 1591-2018 (GB/T1591-2018) - Chinese Standard GB/T 14977 General requirement for surface condition of hot-rolled steel plates GB/T 17505 Steel and steel products General technical delivery requirements GB/T 20066 Steel and iron - Sampling and preparation of samples for the determination of chemical composition GB/T 20123 Steel and iron - Determination of total carbon and sulfur content
GB/T1591 Q345 steel include Q345A, Q345B, Q345C, Q345D, Q345E steel. GB/T1591 Q345 steel plate external implementation of the standard is:gb709, the internal implementation of the standard is:gb/t1591-94, due to the reasons for the implementation of the standard, such as the negative tolerance of the steel plate. The latest implementation of the standard is GB/T1591-2008. GB/T1591 Q345c Hot Rolled Low-Alloy High-Tensile Steel PlateMay 22, 2021 · 1. Steel Grade:Q345C 2. Product name:GB/T1591 Q345C Hot Rolled Low-Alloy High-tensile Steel Plate 3. Length:3000-12000mm 4. Width:1000-3000mm 5. Thickness:4-200mm Q345C steel chemical composition % GB/T1591 Q390A low alloy steel price-GB/T1591 low alloy GB/T1591 Q390A low alloy steel price. GB/T1591 Q390A steel is high strength low alloy steel material. "Q" is the first letter of Chinese Pinyin:"qu fu dian", that means Yield Point, "390" is the minimum value of yield strength 390 MPa for steel thickness 16mm.
Jul 22, 2019 · Q345A:no impact. Q345B:impact at room temperature of 20 Q345C:0 impact. Q345D:impact at -20 Q345E:impact at -40 External standard of Q345:GB709, internal standard:GB/ t1591-2008. Due to the implementation of the standard, this steel plate allows negative tolerance delivery. The chemical composition of Q345 material is as follows: Low alloy GB/T1591 Q460D steel strip-GB/T1591 low alloy Low alloy GB/T1591 Q460D steel strip. As the professional high strength low alloy steel supplier, we can supply Q460D steel plates, Q460D steel strip, Q460D angle steel bars with direct factory price. Hot rolled GB/T1591 Q460D strips are mainly used in various building structures, bridges, vehicles, brackets, machinery, etc., for example, the industrial structure of the steel bearing bracket Q345 Steel Specification and Equivalent StandardQ345 steel specification:Q345 steel belongs to 16Mn steel grade, usually it is produced in hot rolled state, hot rolled steel plate, hot rolled steel coil/sheet, it has comprehensive mechanical and welding property, as it shows good performance in structural purposes, it is widely used as welding structural part in manufacturing of ship, railway and vehicles, bridges, boiler, pressure vessel
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. The source standarts should always be checked for the specific Q355 Steel Properties, Composition & EquivalentQ355 Steel (Q355B Q355C Q355D) Q355 steel is a Chinese low alloy high strength structural steel, which replaced Q345, the material density is 7.85 g/cm3. According to GB/T 1591 -2018, Q355 has 3 quality levels:Q355B, Q355C and Q355D.GB-T 1591 Q345A,Q345A,Q345A Steel Plate,Q345A GB-T 1591 Q345A,Q345A,Q345A Steel Plate,Q345A Stock,Q345A supplier Category:Low High Strength and Super Thick Steel Plate Model:Gangsteel Carbon Plate Factory are specialized in exporting GB-T1591 Q345A Low alloy and high strength steel plate, heavy plate and wide, heavy plate, Which is a large steel plate supplier mill at Gangsteel Group.