DC01 is a common European standard (EN) designation for cold-rolled coated steel sheet, primarily based on EN 10346. It is widely used in industrial applications with basic formability requirements. The following is a detailed description of DC01:
I. Designation Meaning
DC: Stands for "Cold-rolled Coated Steel," specifying the production process (cold rolling) and surface treatment (coating).
01: Indicates the mechanical property grade, belonging to the general commercial grade and the most basic grade in the series. Subsequent numbers (such as 03 and 04) indicate higher ductility (deep drawing and extra deep drawing grades). II. Main Properties
Mechanical Properties (typical values, subject to standards or steel mill reports):
Yield Strength: 140-300 MPa
Tensile Strength: 270-410 MPa
Elongation at Break: ≥28% (thickness <0.7mm) or ≥30% (thickness ≥0.7mm)
Features: Moderate strength and ductility meet general forming requirements, but unsuitable for complex deep drawing or stretching processes.
Coating Type:
DC01 is often combined with different coatings, commonly designated as:
DC01+Z: Pure zinc coating, with excellent rust resistance and the most widely used.
DC01+ZF: Zinc-iron alloy coating, with a thinner and more uniform coating, offering improved weldability and paint adhesion.
III. Applications
Due to its basic performance, DC01 is primarily used in applications with low forming requirements, such as:
Construction Industry: Ventilation ducts, simple steel structures, guardrails, etc. Home Appliance Industry: Non-exterior core components such as washing machine housings, refrigerator backs, and small appliance bases.
Automotive Industry: Parts with low forming requirements, such as interior brackets and simple chassis connectors.
General Manufacturing Industry: Metal cabinets, file racks, and general stamping parts.
IV. Correspondence with Other Standards
DC01 has similar grades in different national/regional standards, facilitating cross-system selection:
Standard System Similar Grade
China GB DX51D
US ASTM CS Type B
Japan JIS SGCC
V. Selection Considerations
Forming Limitations: DC01 has limited ductility and is not suitable for complex deep drawing, stretching, or multiple bending processes. For these applications, select DC03 (deep drawing grade) or DC04 (extra deep drawing grade).
Coating Selection: Select the zinc coating thickness (e.g., Z80, Z100, etc.) based on corrosion resistance requirements. Thicker coatings are recommended for humid environments.
Surface Condition: Different surface treatments (e.g., oil-free, lightly oiled) may be required to accommodate subsequent processing (e.g., welding, painting). In short, DC01 is a cost-effective general-purpose cold-rolled galvanized steel sheet, suitable for basic structural parts and general formed products with less stringent performance requirements.