Q345B 16mn small diameter seamless steel producing goods Introduction: Q345A (GB / T 1591-1994) ω /% performance and application: similar to the naming of Q235. Q345a, Q345b, Q345c, Q345d, Q345e. This is a class distinction represents mainly the impact of temperature differs from mine! Q345a shelf Q460C level, it is not to shock; Q345b level, is 20 degrees room temperature impact; Q345c level is 0 degree impact; Q345d level is -20 degree impact; Q345e level Q460C, -40 degree impact. Q460C mechanical properties in different shock temperature, shock value are different. Q460C plate in the factory outlets, is a low-alloy series. In low-alloy material where such material is the most common. Q345 past way of talking to: 16mn. NS420DQ420 suitable for power transmission tower, all types of lifting cranes, heavy vehicles, oil derrick, high temperature fan, large shovels, dump trucks and drills, hydraulic support, steel structure. Q420 high strength, good fatigue performance; high toughness and low brittle transition temperature; Q460C chemical composition, Q460C, Suzhou, Suzhou, the same is provided by the same metal material Limited. Suzhou, with Metal Materials Co. (www.szrtjs.com) located in Wuzhong District, Suzhou City Pu Town and Xi Road No. 1238 (Puyang intersection). Scraps and development in the wave of market economy, the current Suzhou, with has a high profile in the metal building, and enjoys a good reputation. Suzhou, get the whole network business alliance with certification, marking our service and management level has reached a new height. Suzhou, with the staff willing to work with all people of insight and common development, for a better future.