
Product Categories
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 |

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