Steel Materials Used in Automotive Beams
The automotive beam is an important part of an automotive vehicle, which is responsible for the support of the entire vehicle body, as well as other components such as the powertrain, suspension, etc. Therefore, the mechanical properties of the material that is used for the automotive beam must be up to standard. The most commonly used material for automotive beams is hot rolled steel, which fully meets the requirements for mechanical and durability properties of a vehicle. This article will discuss the properties and characteristics of hot rolled steel material and its application in automotive beams.
First, hot rolled steel (HRS) is a type of steel that has undergone a rolling process, which increases its strength and hardness while decreases its ductility, making it better suited for structures which is subject to high stresses and loads. Generally speaking, HRS stays in a semi-finished state as its final form, and there is no further production required from the steel mill.
The most common type of HRS used for automotive beams is GB/T3273-1989 grade material, which offers excellent strength properties, durability, and corrosion resistance. The material has a yield strength of 280 MPa and a tensile strength of 302 MPa. The material also has good weldability, which makes it a suitable choice for automotive applications.
GB/T3273-1989 grade material has excellent fatigue and fracture toughness, which is essential for the automotive beam. The material is also highly resistant to corrosion, which enhances its long-term performance and durability. Furthermore, this material has good formability, making it an ideal choice for automotive beam production since it can be formed into complex shapes with minimal deformations.
In addition, the GB/T3273-1989 grade HRS is a cost-effective material because it requires minimal further processing during automotive beam production. The material is also economical to transport, as it requires minimal packaging and is available in sheets, making it easier to transport than other types of steel.
To summarize, the GB/T3273-1989 grade hot rolled steel exhibits excellent mechanical and durability properties, making it a suitable material for automotive beams. The material also has good weldability and formability, and it is an economical and cost-effective material that requires minimal further processing during automotive beam production. The material is also highly resistant to corrosion and fatigue, making it ideal for long-term and durable automotive applications.
