DC05 is a low-carbon cold-rolled steel belonging to the DC series of steel grades. It is commonly used in the automotive industry to make parts such as body panels, chassis and structural components. The chemical composition of DC05 steel typically includes carbon, manganese, phosphorus and sulfur.

The maximum carbon content of DC05 steel is 0.06%, which belongs to low carbon steel. Mild steels are known for their excellent weldability, formability and ductility. They are also easy to process and have good surface finish properties. The presence of manganese in DC05 steel helps to improve its strength and toughness, while the addition of phosphorus and sulfur helps to enhance its machinability.

DC05 steel is produced through a cold rolling process that involves passing the steel through a series of rolls at room temperature. This process helps to improve the surface finish and dimensional accuracy of the steel. The end product is a high-quality steel free from defects such as cracks, pores and inclusions.

What is the standard for DC05 steel?

DC05 steel is normally produced according to the European standard EN 10130:2006 “Cold-rolled mild steel flat products for cold forming – Technical delivery conditions”.

What is the chemical composition of DC05 steel?

The chemical composition of DC05 steel specified in the N 10130 standard is as follows:

Carbon (C): 0.06% max

Manganese (Mn): 0.50% max

Phosphorus (P): 0.035% max

Sulfur (S): 0.030% max

Aluminum (Al): 0.020% max

The low carbon content of DC05 steel makes it ideal for applications requiring excellent formability and high ductility. Adding small amounts of other elements helps to improve its strength and other mechanical properties.

What are the mechanical properties of DC05 steel?

The mechanical properties of DC05 steel depend on the exact composition and processing of the material, but in general, it has the following typical properties:

Tensile strength: 270 – 370 MPa

Yield strength: 170 – 250 MPa

Elongation: 28 – 36%

Hardness: HRB 60 – 80 (Rockwell B scale hardness)

These properties make DC05 steel ideal for a variety of applications requiring good formability and moderate strength, such as automotive parts, metal furniture, and household appliances. It is also commonly used in the manufacture of pipes, tubing, and other hollow metal products.

What are the physical properties of DC05 steel?

The physical properties of C05 steel are as follows:

Density: 7.85 g/cm3

Thermal conductivity: 46.6 W/mK at room temperature

Conductivity: 35.6 MS/m at room temperature

Specific heat capacity: 0.45 J/gK at room temperature

Coefficient of thermal expansion: 11.7 x 10^-6 K^-1 at room temperature

These properties contribute to the overall behavior of DC05 steel under various environmental conditions and loads. For example, its relatively high thermal conductivity and low specific heat capacity make it a good conductor of heat, while its coefficient of thermal expansion determines how much it expands or contracts when its temperature changes.

Is DC05 steel cold rolled or hot rolled?

DC05 steel is a cold-rolled steel, which means it is produced by rolling the steel at room temperature below its recrystallization temperature. Cold rolling increases the strength, hardness and surface finish of steel, while also reducing its thickness and improving dimensional accuracy. Cold-rolled steel is often used in applications that require high precision and good surface quality, such as automotive parts, home appliances, and construction materials.

What are the surface quality grades of DC05 steel?

The surface quality of DC05 steel is graded according to the surface finish and surface roughness of the material. DC05 steel is available in several surface quality grades, including:

Surface A – This is the highest surface quality grade for DC05 steel, with a very smooth and uniform surface finish. The finish has no visible blemishes, scratches or marks.

Surface B – This is a medium surface quality grade for DC05 steel. The surface finish is still relatively smooth, but there may be some visible imperfections such as minor scratches or marks.

Surface C – This is the lower surface quality grade of DC05 steel. The surface finish is less uniform and may have visible imperfections such as scratches, marks or slight rust.

The surface quality of DC05 steel is important for many applications as it affects the performance and appearance of the material. For applications where the material is visible or requires painting or coating, a high-quality finish is often required.

What is the delivery status of DC05 steel?

DC05 steel is usually delivered in cold rolled and annealed condition. Cold rolling is a process that reduces the thickness of steel by passing it through a series of rolls at room temperature. The process increases strength, hardness and surface finish while reducing the thickness of the steel.

The delivery condition of DC05 steel may also include various surface treatments, such as pickling or oiling, to enhance the surface finish or to protect the material from corrosion during storage and transportation.

What is the heat treatment of DC05 steel?

The main feature of heat treatment of DC05 steel is to improve its hardness, toughness and wear resistance. The most common method is quenching and tempering. Quenching is the process of rapidly cooling steel in water or oil to achieve high hardness, while tempering is the process of reheating steel to a lower temperature to relieve stress and improve ductility.

How about the machinability of DC05 steel?

Compared with other steel grades, DC05 steel grade has excellent machinability. This is because of their low carbon content and low alloy content. The carbon content in these steels is less than 0.25%, and the alloy content is also very low. This makes them very easy to process. DC05 steel also has good weldability and can be easily welded by various methods.

What are the applications of DC05 steel?

DC05 steel has many potential applications. This steel is commonly used in the automotive industry because of its good formability and weldability. It is also used in the manufacture of storage containers as it is resistant to corrosion. Other potential applications include household appliances, furniture and general engineering.

Some common applications of DC05 steel include:

Auto parts: DC05 steel is often used in the manufacture of auto parts that require good formability and high strength, such as body panels, fenders, doors, etc.

Household appliances: DC05 steel is often used in the production of refrigerators, washing machines, dryers and other household appliances. Its excellent formability and surface finish make it ideal for manufacturing appliance parts.

Metal furniture: DC05 steel is used to make metal furniture such as tables, chairs and cabinets due to its high ductility and excellent formability.

Pipes and Tubes: DC05 steel is used in the manufacture of pipes and ducts for a variety of applications, including plumbing, gas distribution, and structural support.

Construction Materials: DC05 steel is used in the construction industry to make roofing, siding, and other construction materials due to its excellent formability, durability, and corrosion resistance.

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