Production Process

Production Stage	Key Process Steps
Steelmaking	BOF/EAF Melting Continuous Casting
Hot Rolling	Reheating Rolling & Cooling
Pickling	Acid Cleaning Rinsing & Drying
Cold Rolling	Reduction Rolling Annealing (Optional)
Galvanizing	Zinc Bath Immersion Air Knife Leveling
Passivation & Coating	Chromate Treatment Oiling/Phosphating
Finishing	Slitting/Leveling Inspection & Packaging

Mechanical Properties

Parameter	Specification
Thickness	0.12 - 5.0 mm (common: 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, etc.)
Width	600 - 3000 mm (regular: 750 - 762 mm, 900 - 914 mm, 1000 mm, 1200 mm, 1219 - 1250 mm, 1500 mm, etc.)
Length	Customizable (common: 6000 - 6500 mm, and coiled lengths denoted as 'C')
Coil ID	508 mm or 610 mm
Coil weight	3 - 10 tons (adjustable according to customer requirements)

Advantage	Description
Excellent formability	Suitable for various cold - forming processes such as stamping, bending, and drawing, facilitating the production of complex - shaped components.
Good corrosion resistance	The zinc coating on the surface isolates the base metal from the external environment, effectively preventing rust and corrosion, and prolonging the service life.
Favorable surface quality	Has a smooth and clean surface, which is beneficial for subsequent painting, coating, and printing processes, and ensures good adhesion of the coating.
Good weldability	Easy to weld with other components, enabling the production of reliable and strong structures.
Cost - effectiveness	Offers a good balance between performance and cost, with relatively low cost and excellent properties, reducing overall costs.
Wide range of applications	Widely used in the automotive, construction, and home appliance industries, etc.

Q:What is DC51D Galvanized Carbon Steel Coil?

A:A commonly used galvanized steel coil suitable for general forming processing, with a zinc coating on the surface to prevent rust.

Q:How to choose specifications when purchasing?

A:Choose thickness (such as 0.5 - 1.2mm is commonly used), width (common 1000 - 1500mm) and roll weight according to the usage scenario.

Q:Where is it mainly used?

A:It is commonly used in building roofs, walls, home appliance casings (such as refrigerators, washing machines), and auto parts.

Q:Is DC51D easy to process?

A: It has good formability and can be processed by stamping, bending, etc. It is suitable for manufacturing parts with complex shapes.

Q:What are the advantages compared with other galvanized steel sheets?

A:Affordable price, balanced performance, suitable for scenes with general requirements for strength and rust prevention, high cost performance.