By Shape

By Grades

Comparisons

Finish

Maintenance

DP800 STEEL – AUTOMOTIVE STEEL

DP800 STEEL – AUTOMOTIVE STEEL

DP800 steel is high-strength dual-phase steel, where “DP” stands for “Dual Phase,” indicating its microstructure is composed of a soft ferrite matrix and hard martensite islands. The “800” represents its minimum tensile strength of 800 MPa. This combination of phases gives DP800 steel an excellent balance of high strength and good ductility, making it ideal for automotive applications, particularly in body panels, structural components, and safety parts. The steel is designed to provide enhanced crash performance while maintaining formability for complex shapes.

Description

What is DP800

DP800 is a high-strength dual-phase steel composed of approximately 98-99% iron and 1-2% alloying elements such as carbon, manganese, and silicon. It is typically available in solid, flat sheet, or coil forms and has a metallic grey appearance. As a dual-phase steel, DP800 combines high tensile strength with good ductility, offering a balance of strength and formability. It is primarily used in the automotive industry for manufacturing body panels, structural components, and safety parts, where strength and energy absorption are critical. DP800 is processed through hot rolling and cold rolling to achieve its mechanical properties.

Characteristics of DP800

DP800 is an ultra-high-strength steel known for its excellent formability, making it ideal for complex automotive components. It features a low yield strength ratio, high work-hardening index, and bake-hardening properties, ensuring superior formability during processing. DP800 also offers outstanding wear resistance, making it suitable for automotive parts that require durability. Widely used in automotive structural components such as frames and doors, DP800 meets the industry’s high demands for strength and safety. Additionally, it has good weldability, with welded joints showing mechanical properties and microstructures similar to the base material, allowing for effective connections using methods like laser welding.
ElementComposition (approx)
Carbon (C)0.12% – 0.20%
Manganese (Mn)1.00% – 2.00%
Phosphorus (P)≤ 0.025%
Sulfur (S)≤ 0.010%
Silicon (Si)≤ 0.50%
Aluminum (Al)0.015% – 0.050%
PropertyMetricImperial
Density7.85 g/cm³0.283 lb/in³
Melting Point1425-1460°C2597-2660°F
Boiling PointNot typically specifiedNot typically specified
Thermal Conductivity40-50 W/m·K23-29 Btu·ft/h·ft²·°F
Electrical Conductivity10-15% IACS10-15% IACS
Specific Heat Capacity450-500 J/kg·K0.108-0.119 Btu/lb·°F
Thermal Expansion Coefficient11-13 × 10⁻⁶ /°C6.1-7.2 × 10⁻⁶ /°F
Electrical Resistivity0.2-0.4 µΩ·m0.12-0.24 µΩ·ft
PropertyMetricImperial
Tensile Strength800 MPa116,000 psi
Yield Strength500-600 MPa72,500-87,000 psi
Brinell Hardness (HB)200-250 HB200-250 HB
Rockwell Hardness (HRC)20-30 HRC20-30 HRC
Vickers Hardness (HV)210-260 HV210-260 HV
Elongation≥10-20%≥10-20%
Elastic Modulus200 GPa29,000 ksi
IndustryProducts
Automotive Body StructuresBody Panels, Reinforcements, Crash Structures, Roof Rails
Safety ComponentsB-Pillars, Side Impact Beams, Roof Rails, Floor Structures
Structural Parts Requiring High StrengthFrames, Subframes, Cross Members, Underbody Shields
Chassis PartsChassis Frames, Subframes, Crossbeams, Side Rails
Suspension SystemsControl Arms, Springs, Linkages, Stabilizer Bars
Heavy MachineryMachine Frames, Loader Arms, Boom Arms, Heavy Duty Axles

DP800 Heat Treating Instructions: DP800 steel is processed through controlled rolling and cooling to achieve its dual-phase microstructure, which provides a balance of high strength and good ductility. Additional heat treatment, such as quenching and tempering, is not required.

DP800 Surface Finish: DP800 steel can be treated with various surface finishes, such as galvanizing, painting, or coating, to enhance corrosion resistance and improve durability, depending on the specific application.

Custom grades can be produced upon request to meet specific requirements.

Our Service

SteelPRO Group – manufacturer and solution provider for special steel, offering multi-industry application solutions and customised services, 100% quality free, accompanying customers in their growth!

Our Quality Control

  • Roundness
  • Tolerance
  • Microstructure
  • Non-Destructive Testing
  • Destructive Testing
  • Process Control

Service Integration Processing

  • Welding
  • Metal Fabrication
  • CNC Machining
  • Lathe
  • Forming

QUESTION 1

Conteúdo temporário. Você deve inserir o seu texto aqui! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, neque qui velit. Magni dolorum quidem ipsam eligendi, totam, facilis laudantium cum accusamus ullam voluptatibus commodi numquam, error, est. Ea, consequatur.

QUESTION 2

Conteúdo temporário. Você deve inserir o seu texto aqui! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, neque qui velit. Magni dolorum quidem ipsam eligendi, totam, facilis laudantium cum accusamus ullam voluptatibus commodi numquam, error, est. Ea, consequatur.

QUESTION 3

Conteúdo temporário. Você deve inserir o seu texto aqui! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, neque qui velit. Magni dolorum quidem ipsam eligendi, totam, facilis laudantium cum accusamus ullam voluptatibus commodi numquam, error, est. Ea, consequatur.

QUESTION 4

Conteúdo temporário. Você deve inserir o seu texto aqui! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, neque qui velit. Magni dolorum quidem ipsam eligendi, totam, facilis laudantium cum accusamus ullam voluptatibus commodi numquam, error, est. Ea, consequatur.

QUESTION 4

Conteúdo temporário. Você deve inserir o seu texto aqui! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, neque qui velit. Magni dolorum quidem ipsam eligendi, totam, facilis laudantium cum accusamus ullam voluptatibus commodi numquam, error, est. Ea, consequatur.

CONTACT

Please enable JavaScript in your browser to complete this form.

CONTACT

Please enable JavaScript in your browser to complete this form.

Certifications

Other Products

Scroll to Top

Send Message

Please enable JavaScript in your browser to complete this form.

Send Message

Please enable JavaScript in your browser to complete this form.
Receive the latest steel news

Subscribe To Our Weekly Newsletter

Stay ahead with the insights that matter!