S355 JO Alloy structural plate

Grade

Main Feature

Application

Q295

Steel contains only a small amount of alloy elements, not high strength, but good plasticity, cold bending, welding and corrosion resistance

Building structures, industrial plants, low pressure boilers, low and medium pressure chemical containers, oil tanks, pipelines, cranes, tractors, vehicles and general engineering structures with low strength requirements

Q345

Good comprehensive mechanical properties, good weldability, cold, hot machining performance and corrosion resistance, C, D, E grade steel has good low temperature toughness

Ships, boilers, pressure vessels, oil storage tanks, Bridges, power plant equipment, lifting and transporting machinery and other high load welded structures

Q420

High strength, especially in normalizing or normalizing and tempering state has higher comprehensive mechanical properties

Large ships, Bridges, power plant equipment, medium and high pressure boilers, high pressure vessels, locomotives, lifting machinery, mining machinery and other large welding structures

Q460

The highest strength, in normalizing, normalizing and tempering or quenching and tempering state has a very high comprehensive mechanical properties, all aluminum supplement deoxidization, quality grades of C, D, E, can ensure the good toughness of steel

The spare steel grade is used for various large engineering structures with high strength and large load