Brand Q195
Low carbon content, low strength, good plasticity, toughness, processing and welding performance.Used for rolling sheet metal and wire rod.Cold and hot rolled sheet steel and galvanized, tinned and plastic composite sheet steel made of the original plate are widely used in roof board, decoration board, general dust removal pipe, packaging container, iron drum, instrument shell, switch box, protective cover, railway cars, etc.The coil is cold drawn into low carbon steel wire or galvanized low carbon steel wire, used for binding, tensioning, fixing or as wire mesh, bracelet, etc.
Brand Q215
Slightly stronger than Q195 steel, similar in use to Q195.In addition, it is also widely used for welding steel pipes, galvanized welded pipes, furnace supports, screws, bolts, round nails, wood screws, and metal parts such as punching iron chains.
Brand Q235
Moderate carbon content, good comprehensive performance, strength, plasticity and welding performance, the most widely used.Often rolled into coil or round steel, square steel, flat steel, Angle steel, I steel, channel steel, window frame steel and other steel, thick steel plate.Construction and engineering structures are used extensively.It is used for making steel bars or building factory buildings, high-voltage transmission towers, Bridges, vehicles, boilers, containers, ships, etc. It is also widely used for mechanical parts with low performance requirements.Grade C, D steel can also be used for some professional steel.
Brand Q255
The performance is similar to Q235, with a slight increase in strength and a decrease in plasticity.It is not as widely used as Q235. It is mainly used for bushing and checking
Brand Q275
Strength, hardness is higher, wear resistance is better.Used for manufacturing shaft, agricultural machinery, wear-resistant parts, rail joint splint, pad, wheel, roll, etc.
Brand Q295
Steel contains only a small amount of alloying elements, not high strength, but good plasticity, cold bending, welding and corrosion resistance.Mainly used for 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.
Brand Q345, Q390
Good comprehensive mechanical properties, good welding performance, cold and hot processing performance and corrosion resistance, grade C, D, E steel has good low temperature toughness.Mainly used in ships, boilers, pressure vessels, oil storage tanks, Bridges, power plant equipment, lifting and transportation machinery and other high load welding hooks.
Brand Q420
High strength, especially in normalizing or normalizing and tempering state has higher comprehensive mechanical properties.Mainly used for large ships, Bridges, power plant equipment, medium and high pressure boilers, high pressure vessels, rolling stock, hoisting machinery, mining machinery and other large welding structures.
Brand Q460
The highest strength, in the normalizing, normalizing and tempering or quenching and tempering state has a very high comprehensive mechanical properties, all with aluminum supplementary deoxidization, quality grade C, D, E, can ensure the good toughness of steel spare steel.Suitable for all kinds of large engineering structures and light structures with high strength and heavy load.