Shandong Q345R seamless steel pipe and Q345R seamless steel pipe characteristics
Shandong's Q345R seamless steel pipe is a widely used material in the manufacturing of pressure vessels and boilers. It is a low-alloy steel with a composition that combines elements from 16Mn, 16MnR, and 19Mng. This steel grade is specifically designed for applications requiring good strength, toughness, and weldability under moderate temperatures. Q345R is typically delivered in either hot-rolled or normalized condition, which helps improve its mechanical properties and structural stability. Compared to 20G steel, Q345R has slightly higher tensile strength (ranging from 450 to 655 MPa), but its elongation is slightly lower, at around 19–21% compared to 24% for 20G. This makes it a suitable choice for applications where moderate strength and formability are required. The chemical composition of Q345R includes a low manganese content, contributing to its overall performance and cost-effectiveness. Q345R is governed by the Chinese standard GB713-2008, which outlines the technical requirements for steel plates and pipes used in pressure vessels. This standard ensures that the material meets strict quality and safety criteria. Shandong Seamless Steel Tube Factory provides detailed information and high-quality Q345R seamless steel pipes, ensuring reliable performance for industrial applications.
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