Metallic material
Innovation | Professionalism
Integrity | Efficiency
Metallic material
Innovation | Professionalism
Integrity | Efficiency
The engine hood cover panel, also known as the hood or bonnet, is an essential component of a vehicle that covers and protects the engine compartment. It is usually located at the front of the vehicle and is designed to provide easy access to the engine for routine maintenance and repairs. The hood also plays a crucial role in protecting the engine and other vital components from external elements such as dirt, debris, and rainwater.
Engine hood cover panels are typically made of lightweight and durable materials such as aluminum, steel, or fiberglass. Some modern car models also use composite materials like carbon fiber reinforced polymer (CFRP) to reduce weight and improve fuel efficiency.
Bake-hardened steel is a type of steel that is strengthened through a combination of factors, including the presence of carbon and nitrogen atoms, as well as the addition of strengthening elements like phosphorus and manganese. These elements can form solid solutions within the steel that inhibit the movement of dislocations, resulting in increased strength and hardness.
After the steel has been formed into its desired shape, it undergoes a process known as age hardening, which involves heating the steel to a specific temperature and holding it there for a period of time. This allows for the precipitation of small particles within the steel, further strengthening the material.
Bake-hardened steel is commonly used in applications where high strength and durability are required, such as automotive outer coverings. The steel typically has a ferrite microstructure, which is relatively soft and ductile but can be hardened through the addition of other elements and heat treatments. However, excessive amounts of carbon can make the steel brittle and decrease its overall strength.
| Grade | YS(MPa) | TS(MPa) | EL(%) | r | n | BH2(MPa) |
| HC220BD+Z | 220-280 | 340-400 | ≥32% | ≥1.2 | ≥0.15 | ≥30 |
| HC220BD+ZF | 220-280 | 340-400 | ≥30% | ≥1 | ≥0.15 | ≥30 |
Grade: HC220BD+Z, HC220BD+ZF
C(max): 0.06
Mn(max): 1
Si(max): 0.5
Our company: Hengqiao(Shanghai) International Trading Limited
The company’s main business is general GMW standard, Fiat EFE standard, Volvo VDA standard, Nissan NEN standard, Volkswagen VW50065, Ford WSS-M and other standard series of automotive steel.
Looking forward to your inquiry！
We are looking forward to your message:
Send RequestFind your contact person directly here:
To our locations