A214 is a steel grade produced according to American ASTM standards, which belongs to American standard. 

Now the common round steel processes are hot rolling, forging and cold drawing. The steel quality and application scope of these three processing modes will also have some differences. For example, the specification of hot rolling is generally 5.5-250MM, and the appropriate steel can be selected according to the actual needs.

Generally, parts are manufactured by machinery or used as seamless steel pipe blanks, and steel is also used in some building construction.

Round steel has relatively high strength, high hardenability and very good toughness, so its pressure bearing capacity is also guaranteed. Even if it is used at high temperature, the creep strength is high and the durability is also guaranteed.