What is MBN 11251-1 CR440Y780T-DP GI70/70U Cold Rolled Dual Phase Steel?

MBN 11251-1 CR440Y780T-DP GI70/70U is a cold-rolled dual-phase steel that meets Mercedes-Benz standards. This steel is mainly composed of ferrite and martensite, and the martensite is dispersed in the ferrite matrix in an island shape. Above, the first phase is a ferrite structure with a soft ductile structure that provides excellent formability and machinability during fabrication. The second phase is a martensitic structure with a hard and strong structure, which can provide excellent strength and durability after the vehicle is on the road. The combination of the two phases can achieve the coordination of steel strength and plasticity, so that the steel has good comprehensive properties performance.

This particular type of steel is made from cold-rolled hot-rolled coils that undergo a series of mechanical and chemical treatments to produce its unique properties. One such treatment involves heating the steel above its critical temperature, then rapidly cooling it using water or oil quenching.

MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel is highly regarded for its excellent combination of properties that provide excellent performance in demanding conditions.

Chemical composition of MBN11251-CR440Y780T-DP GI70/70 U

MBN11251-CR440Y780T-DP GI70/70 U is a dual-phase steel whose chemical composition is as follows:

Carbon (C): ≤0.18%

Silicon (Si): ≤0.80%

Manganese (Mn): ≤2.50%

Phosphorus (P): ≤0.050%

Sulfur (S): ≤0.010%

Aluminum (Al): 0.015%-1.00%

Titanium+niobium (Ti+Ni): 5.0%-9.0%

Chromium + Molybdenum (Cr+Mo): 14%

Mechanical properties of MBN11251-CR440Y780T-DP GI70/70 U

Yield strength: 440-550MPa

Tensile strength: 780-900MPa

Elongation after breaking: ≧14%

MBN 11251-1 CR440Y780T-DP GI70/70U cold-rolled dual-phase steel manufacturing process

The manufacturing process of MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel involves several stages. The first stage involves melting iron ore and other elements in a blast furnace to produce molten steel. The second stage is refining, which is the treatment of removing impurities and adjusting the composition of molten steel.

After refining, molten steel is cast into slabs or slabs, which are then rolled into sheets using hot rolling mills. These sheets are then cooled and further processed through cold rolling mills to their final thickness.

During this process, the steel undergoes controlled cooling cycles that transform its microstructure into a dual-phase structure consisting of ferrite and martensite phases. This transformation endows it with enhanced mechanical properties such as high strength, good formability and improved ductility.

After multiple quality control tests including dimensional inspection, surface inspection and chemical analysis; MBN 11251-1 CR440Y780T-DP GI70/70U Cold Rolled Dual Phase Steel is cut into coils and distributed to various industries for auto parts production etc.

Properties of MBN 11251-1 CR440Y780T-DP GI70/70U Cold Rolled Dual Phase Steel

MBN11251-CR440Y780T-DP GI70/70 U is a Mercedes-Benz standard cold-rolled dual-phase steel with the following characteristics:

High strength: The strength of dual-phase steel is higher than that of traditional ordinary carbon steel, which can meet the strength requirements of auto parts.

Good plasticity and toughness: While the strength is increased, the dual-phase steel still maintains good plasticity and toughness, so that it can withstand various loads and vibrations of automotive components in use.

Good corrosion resistance: The surface of duplex steel is covered with a layer of zinc, which makes it have good corrosion resistance.

Excellent formability: Dual-phase steel has good formability and can manufacture complex-shaped automotive parts through various forming processes.

Lightweight: Compared with traditional ordinary steel, dual-phase steel has a lower density, which can achieve the goal of automobile lightweight without affecting the strength.

Application of MBN11251-CR

MBN 11251-1 CR440Y780T-DP GI70/70U Cold rolled dual phase steel is a high strength material with excellent properties in a variety of applications. Its unique properties, including high strength, good ductility and excellent formability, make it ideal for automotive parts production.

MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel is widely used. In the automotive industry, it is often used to produce structural parts such as chassis parts, side beams, and door beams. Due to its durability, this steel is also used in the manufacture of heavy machinery such as cranes and other industrial machinery.

In addition to these applications, MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel has proven to be very useful in building construction where it is suitable for roof or wall panels where corrosion protection is required in harsh environmental conditions.

MBN 11251-1 CR440Y780T-DP GI70/70U Cold Rolled Dual Phase Steel is a versatile material with numerous benefits that make it an important component in many industries today. Its unique combination of mechanical properties makes this steel suitable for a variety of industries, from automakers to construction firms looking for a reliable and long-lasting material to incorporate into their designs.

What are the benefits of using MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel in the automotive industry?

MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel is a highly advanced and versatile material that offers numerous benefits to the automotive industry. One of its main advantages is increased safety due to its high strength and ductility and therefore excellent crash resistance. This means that vehicles made of this steel are less likely to deform or collapse in an accident, providing better protection for passengers.

Another benefit of MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel is improved fuel efficiency. Due to its lightweight nature, vehicles built from this steel require less energy to move, resulting in lower fuel consumption and emissions. Additionally, the steel has excellent formability and weldability, which allows manufacturers to more easily create complex parts without sacrificing durability or performance.

MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel also improves vehicle performance by enhancing stiffness and reducing noise vibration harshness (NVH). The use of this advanced material helps reduce unwanted vibrations and road noise while improving overall handling and control.

The benefits of MBN 11251-1 CR440Y780T-DP GI70/70U cold-rolled dual-phase steel make it the first choice for automakers looking for a high-performance material to help improve safety, fuel efficiency, comfort and the driving experience.

MBN 11251-1 CR440Y780T-DP GI70/70U How does cold rolled dual phase steel improve vehicle safety and performance?

MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel is a high strength steel widely used in the automotive industry. The material offers several advantages over traditional steel, including improved vehicle safety and performance.

One of the main ways in which cold-rolled dual-phase steel improves vehicle safety is by improving its crashworthiness. The material's excellent strength-to-weight ratio enables automakers to reduce vehicle weight without sacrificing structural integrity. That means cars made of this steel are better able to withstand impacts, reducing the risk of injury or death in an accident.

In addition to improving safety, MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel also improves vehicle performance. Its high strength allows greater torsional stiffness for better handling and road stability. This can lead to a more enjoyable driving experience for consumers.

In addition, the steel helps manufacturers meet stringent fuel efficiency standards, allowing them to build lighter vehicles with smaller engines while still maintaining good performance levels.

It is clear that MBN 11251-1 CR440Y780T-DP GI70/70U cold rolled dual phase steel has revolutionized the automotive industry by offering significant advantages over conventional steel such as enhanced safety and superior road performance.