??Hot rolled steel plate is a steel plate made by rolling steel ingots or continuous casting billets through multiple passes in a rolling mill at high temperatures，Its thickness is generally in the range of1.2mmthe above?。Hot rolled steel plates have high plasticity and weldability，But the hardness is relatively low，Suitable for the production of general and welded structures。?
1、structural steel
Mainly used for steel structural components、bridge、ship、Production of vehicles。
2、Weather resistant steel
Add special elements(P、Cu、Cclass)，Has good corrosion resistance and atmospheric corrosion resistance，Used for containers、Production of special vehicles，Also used for building structures。
3、Steel for automotive structures
High strength steel plate with good stamping and welding performance，Used for automobilesFRAME、WHEELWaiting for production。
4、Hot rolled special steel
Carbon steel for general mechanical structures、alloy steel、chisel tool steel，Used for the production of various mechanical components after heat treatment engineering。
5、Cold rolled raw plate
Used for producing various cold-rolled products，includeCR, GI, Color coated board, etc。
6、Steel plate for steel pipes
Has good processing performance and compressive strength，Used for producing internal volume500L The following fillingLPG、High pressure gas pressure vessels for acetylene gas and various gases。
7、Steel plates for high-pressure vessels
Has good processing performance and compressive strength，Used for producing internal volume500L The following fillingLPG、High pressure gas pressure vessels for acetylene gas and various gases。
8、Stainless steel plate
Stainless steel has good corrosion resistance，Mainly used in the food industry、Surgical equipment、aerospace、petroleum、Chemical and other industries。
，Good extensibility。
Cold rolled sheet has high hardness，Processing is relatively more difficult，But not easily deformed，High intensity。
Hot rolled plates have relatively low strength,Poor surface quality(Oxidized\Low smoothness),But it has good plasticity,Generally medium thick plate,cold-rolled sheet:High strength\High hardness,High surface smoothness,Generally thin plate,Can be used as a stamping plate.
hot-rolled steel plate，Mechanical performance is far inferior to cold processing，Also inferior to forging processing，But it has good toughness and ductility
Cold rolled steel plates have a certain degree of work hardening，Low resilience，But it can achieve a good flexural strength ratio，Used for cold bending spring plates and other parts，Meanwhile, due to the yield point being closer to the tensile strength，So there is no foresight of danger during use，Accidents are prone to occur when the load exceeds the allowable load
supplement,Cold rolled steel plate0.3-3.0mm,hot-rolled steel plate2.0