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DX52D+ZF Galvannealed Steel Sheet
Product Description
DX52D+ZF Galvannealed Steel Sheet is a drawing-quality steel sheet featuring a zinc-iron alloy coating. It is produced through continuous hot-dip galvanizing followed by an alloying heat treatment, during which iron diffuses into the zinc layer to form a metallurgically bonded ZF coating.
The DX52D substrate is designed for drawing and forming operations that require greater deformation capability than general commercial forming grades. Combined with the galvannealed surface, DX52D+ZF offers a practical material solution for manufacturers producing formed metal components that require subsequent painting, resistance spot welding, or other finishing processes.
Also identified as DC52D+ZF in Rosen's published material grade specifications, this product is suitable for automotive brackets, appliance housings, formed panels, electrical cabinets, and industrial sheet metal components. Its drawing-quality substrate makes it particularly relevant to parts involving moderate drawing depth and more demanding forming geometries.
Rosen supplies DX52D+ZF Galvannealed Steel Sheets in different dimensions and coating specifications. Buyers can specify sheet thickness, width, length, coating mass, and surface treatment according to their manufacturing requirements.
Product Features
Material Grade and Applications
Coating Types and Surface Treatment Methods
Available Range
Chemical Composition
Mechanical Properties
Product Features
Drawing-Quality Steel Substrate
DX52D is designed for drawing applications rather than simple bending alone. Its mechanical property requirements provide greater forming capability than DX51D, making it suitable for components involving moderate drawing and deformation.
Metallurgically Bonded ZF Coating
The galvannealing process transforms the initial zinc coating into a zinc-iron alloy layer. This coating has a characteristic matte gray appearance and provides a different surface structure from conventional hot-dip galvanized steel.
Suitable for Painted Components
DX52D+ZF offers surface characteristics suitable for subsequent painting and powder coating. Appropriate cleaning and pretreatment are necessary to achieve the required finish and coating adhesion.
Compatible with Resistance Spot Welding
The zinc-iron alloy coating can be used in resistance spot welding applications. Welding parameters should be optimized according to sheet thickness, coating specifications, electrode conditions, and production requirements.
Forming and Fabrication Versatility
DX52D+ZF steel sheets can be considered for drawing, bending, cutting, and other sheet metal fabrication processes. The actual forming limit depends on component geometry, material thickness, tooling design, and lubrication.
Zinc-Based Corrosion Protection
The ZF coating provides sacrificial corrosion protection to the steel substrate. For products requiring enhanced durability, the coating mass and additional protective finishing should be selected according to the intended service environment.
Material Grade and Applications
DX52D+ZF combines a drawing-quality DX52D steel substrate with a zinc-iron alloy coating. Under EN 10346, DX52D belongs to the drawing steel category, offering greater forming capability than general forming grade DX51D.
Material Specification | Description |
|---|---|
Steel Grade | DX52D+ZF |
Alternative Designation | DC52D+ZF |
Applicable Standard | EN 10346 |
Base Material | DX52D |
Coating Designation | ZF |
Coating Type | Zinc-Iron Alloy Coating |
Forming Category | Drawing Quality |
Product Form | Steel Sheet |
Automotive Components: Drawn brackets, mounting components, formed panels, and metal parts requiring subsequent painting or welding.
Home Appliances: Refrigerator inner components, washing machine housings, appliance panels, and formed metal covers.
Electrical Enclosures: Control cabinet panels, distribution box housings, and formed electrical equipment components.
Metal Door Manufacturing: Embossed door panels, formed door frames, and other fabricated metal parts.
Industrial Fabrication: Drawn metal housings, equipment covers, trays, and components involving moderate forming operations.
Coating Types and Surface Treatment Methods
DX52D+ZF is supplied with a zinc-iron alloy coating designated as ZF. Additional surface treatments can be selected to accommodate different storage, forming, painting, and fabrication requirements.
Surface Treatment | Code | Description |
|---|---|---|
Unprocessed | U | No additional surface treatment |
Chromic Acid Passivation | C | Chemical passivation for surface protection |
Oiling | O | Oil application to support storage and processing |
Passivation + Oiling | CO | Combined passivation and oiling |
Chrome-Free Passivation | C5 | Chromium-free passivation treatment |
Chrome-Free Passivation + Oiling | CO5 | Combined chromium-free passivation and oiling |
Chrome-Free Inorganic Passivation | IC | Inorganic passivation without chromium |
Chrome-Free Inorganic Passivation + Oiling | ICO | Combined inorganic passivation and oiling |
Self-Lubricating | SL | Surface treatment with self-lubricating properties |
Chrome-Free Self-Lubrication | SL2 | Chromium-free self-lubricating treatment |
Easy-Workability Self-Lubrication | EW | Treatment designed to support forming operations |
Inorganic Self-Lubrication | SW | Inorganic self-lubricating treatment |
Inorganic Solid-State Lubrication | T | Inorganic solid-state lubrication |
Chrome-Free Fingerprint-Resistant | N5 | Chromium-free fingerprint-resistant treatment |
Conductive and Fingerprint-Resistant | NE | Chromium-free conductive and fingerprint-resistant treatment |
The final surface treatment should be determined by the intended forming process, storage conditions, and subsequent coating or finishing requirements. Specific treatment availability should be confirmed before ordering.
Available Range
DX52D+ZF Galvannealed Steel Sheet is available in different dimensions to accommodate drawing, cutting, and sheet metal fabrication requirements.
Parameter | Available Range |
|---|---|
Steel Grade | DX52D+ZF |
Thickness | 0.5–2.5 mm |
Width | 800–1800 mm |
Sheet Length | 1000–6000 mm |
Coating Type | Zinc-Iron Alloy Coating (ZF) |
Coating Weight | 80–120 g/m² (Double-Sided) |
Stock Delivery Time | Approximately 10 days |
Custom Production Lead Time | Approximately 60–80 days |
Specific DX52D+ZF dimensions and coating combinations are subject to production availability and order confirmation.
Chemical Composition
DX52D+ZF uses a low-carbon steel substrate designed for drawing applications. The following table shows the chemical composition limits published in Rosen's galvannealed steel specifications.
Maximum values, mass percentage (%)
Grade | C | Si | Mn | P | S | Ti |
|---|---|---|---|---|---|---|
DX52D+ZF | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.03 | ≤0.20 |
Mechanical Properties
The mechanical properties of DX52D+ZF are designed to support drawing and forming operations. Its lower yield strength and elongation requirements distinguish it from the general forming grade DX51D+ZF.
Property | Specification |
|---|---|
Yield Strength | 160–260 MPa |
Tensile Strength | 270–410 MPa |
Elongation (A80) | ≥32% |
Plastic Strain Ratio (r90) | Not specified |
Strain Hardening Exponent (n90) | Not specified |
Actual mechanical properties should be verified against the applicable product standard and the material test certificate supplied with the order.
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