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Dual-phase Steel
Dual-phase Steel
Dual-phase Steel

Dual-phase Steel

Dual-phase steel is a kind of metal material with high strength and toughness. Its structure is mainly composed of the ferrite phase and martensitic phase, and sometimes may also include austenite or bainite phase, which accounts for about half of the proportion of the steel, and the content of a smaller phase needs to reach 30%.
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Introduction
Application
Specification
Feature
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Introduction
Dual-phase steel

Dual-phase steel is a kind of metal material with high strength and toughness. Its structure is mainly composed of the ferrite phase and martensitic phase, and sometimes may also include austenite or bainite phase, which accounts for about half of the proportion of the steel, and the content of a smaller phase needs to reach 30%.
The characteristics of this two-phase structure make the two-phase steel have the advantages of ferritic stainless steel and austenitic stainless steel, such as high strength, good plasticity and toughness, excellent corrosion resistance and welding performance.

Dual-phase Steel
Product Application
Automobile industry
DP steel plays an important role in automobile manufacturing. It is used to manufacture key parts such as the body skeleton, chassis and doors, which not only improves the structural strength and safety of the car, but also helps to improve fuel economy due to its lightweight characteristics. In addition, the high formability of duplex steel makes the manufacturing of automotive components more flexible and efficient.
Construction industry
In the construction sector, Dual-phase steel also plays an important role. Its high strength and toughness make duplex steel an ideal choice for structural parts such as Bridges, tall buildings, and pressure vessels. In addition, the corrosion resistance of duplex steel also helps to extend the service life of buildings and improve the safety and stability of buildings.
Machinery manufacturing industry
In the machinery manufacturing industry, the application of duplex steel is also very extensive. It can be used to manufacture machine parts, compressors, engines and other key components to improve the overall performance and durability of machinery. The high hardness and wear resistance of duplex steel make it an ideal material for manufacturing parts with high strength requirements.
Chemical and petroleum industries
Duplex steel has excellent corrosion resistance and high strength, so it is widely used in the chemical and petroleum industries. It can be used to manufacture pipes, containers, valves and other equipment to ensure that these equipment can operate stably in harsh working environments.
Food processing and manufacturing
Because the surface of duplex steel is smooth and easy to clean, it is often used in food processing and manufacturing equipment, pipelines, etc., to ensure product hygiene and quality.
Specification
Dual-phase Steel Grades | Product Specification
Product name Coating Dimensions Standards
CR290Y490T-DP UC,GI,GA*,ZA T:0.50-3.00mm

W:Up to 1527mm

VDA 239-100
CR230Y500T-DL UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR290Y500T-DP UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR330Y590T-DP UC,GI,GA,ZA T:0.50-3.00mm

W:Up to 1527mm

VDA 239-100
CR280Y600T-DL UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR350Y600T-DP UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR440Y780T-DP UC,GI,GA,ZA* T:0.50-2.50mm

W:Up to 1527mm

VDA 239-100
CR450Y780T-DP UC T:0.80-2.00mm

W:Up to 1527mm

SSAB
CR390Y800T-DP UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR500Y800T-DP UC T:0.50-2.10mm

W:Up to 1527mm

SSAB
800DPX GI,GA* T:0.50-2.10mm

W:Up to 1527mm

SSAB
CR590Y980T-DP UC,EG,GI,GA,ZA T:0.50-2.10mm

W:Up to 1527mm

VDA 239-100
CR700Y980T-DP UC,EG,GI,GA*,ZA* T:0.70-2.10mm

W:Up to 1527mm

VDA 239-100
CR700Y980T-DP-LCE UC,EG,GI,GA*,ZA* T:0.50-2.10mm

W:Up to 1511mm

SSAB
CR700Y1000T-DP UC,EG T:0.50-2.00mm

W:Up to 1527mm

SSAB
1000DPX GI,GA* T:1.00-2.00mm

W:Up to 1320mm

SSAB
Feature
Advantageous Features
Excellent mechanical properties
Dual-phase steel has a good combination of high strength and high ductility, and its yield strength and tensile strength are relatively high, which makes it perform well in manufacturing processes such as cold stamping and deep drawing.
Corrosion resistance
Duplex steel combines the advantages of ferritic stainless steel and austenitic stainless steel, especially the molybdenum containing duplex stainless steel has good resistance to chloride stress corrosion under low stress, but also has good resistance to pitting corrosion. This allows it to show good durability in industrial environments containing corrosive substances such as chloride and hydrogen sulfide.
Good processing performance
Although the high strength and high work hardening rate of duplex steel may bring certain challenges to the processing process such as sawing and punching, good processing results can still be achieved through reasonable process adjustments, such as increasing the shear power or reducing the shear thickness.
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