Q235 is a carbon structural steel plate and widely used as engineering and building structural material, for producing re-bar or factories house frame, high voltage transmission tower, bridge, vehicle, container ship, boiler, etc.

Q345 is a kind of low alloy steel material (C<0.2%), widely used in bridges, buildings, vehicles, ships, pressure vessel etc. Q stands for yield of this material, 345 refers to the yield strength of this material, and thickness increases with the decreasing of yield point.

1.Yield limit: Q235 yield limit is 235MPa while Q345 yield limit is 345MPa.
2.Alloy content: Q235 is ordinary carbon steel and Q345 is a low alloy steel.
3.The performance and application: The comprehensive mechanical properties of Q345 is good, also has good low temperature performance, ductility and good weld-ability, used as machinery parts in low pressure container, tank, vehicle, crane, mining machinery, power plants, bridges.
4.Q345 is a little bit expensive than Q235

Zhangjiagang YaoYu Wear Resistant Materials Co,ltd use Q235 or stainless steel plate as base plate and do welding on the surface of these plates. Please feel free to contact us if you want to know more about wear resistant steel plate (chromium carbide overlay plate)or chromium carbide overlay pipe.