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DX51D+ZF Galvannealed Steel Sheet
Product Description
DX51D+ZF Galvannealed Steel Sheet is a flat steel product featuring a zinc-iron alloy coating produced through a continuous hot-dip galvanizing and alloying process. The DX51D substrate is designed for general bending and forming operations, while the ZF coating provides a surface suitable for painting, welding, and further fabrication.
Unlike conventional zinc-coated steel sheets, DX51D+ZF undergoes an additional heat treatment that allows iron to diffuse into the zinc coating, creating a zinc-iron alloy layer. This gives the sheet its characteristic matte gray surface and makes it a practical choice for manufacturers requiring a combination of corrosion protection and downstream processing performance.
DX51D+ZF Galvannealed Steel Sheet is commonly considered for automotive sheet metal components, appliance panels, electrical enclosures, door frames, and industrial fabricated parts. Its general forming characteristics make it suitable for applications involving cutting, bending, stamping, and resistance spot welding.
Rosen offers DX51D+ZF steel sheets in different thicknesses, widths, lengths, and surface treatment options. Buyers can specify their required dimensions and processing conditions to identify a suitable material configuration.
Product Features
Material Grade and Applications
Coating Types and Surface Treatment Methods
Available Range
Chemical Composition
Mechanical Properties
Product Features
Zinc-Iron Alloy Surface
The ZF coating is created by alloying the zinc layer with iron after hot-dip galvanizing. This metallurgical process produces a relatively uniform zinc-iron alloy surface with a matte gray appearance, suitable for components requiring subsequent surface finishing.
Practical Forming and Fabrication Performance
DX51D is intended for general forming applications. DX51D+ZF steel sheets can be processed through conventional sheet metal operations such as cutting, bending, and forming, subject to material thickness and component geometry.
Suitable for Subsequent Painting
The zinc-iron alloy surface provides favorable characteristics for paint application. Proper cleaning and pretreatment should be selected according to the requirements of the final painting or powder coating system.
Compatible with Resistance Spot Welding
DX51D+ZF can be used in resistance spot welding applications. Welding conditions should be established according to sheet thickness, coating specification, electrode condition, and production requirements.
Corrosion Protection for Fabricated Components
The zinc-iron alloy coating provides sacrificial protection to the underlying steel substrate. For products exposed to demanding environments, coating mass and additional protective finishing should be considered together.
Flexible Sheet Dimensions
Available sheet lengths and widths support different fabrication requirements. Customers can select suitable dimensions according to cutting layouts, component sizes, and production processes.
A Range of Galvannealed Steel Grades
Rosen supplies different galvannealed steel grades, from general forming to deep drawing and extra-deep drawing specifications. This allows buyers to select materials according to component geometry and forming requirements.
Flexible Sheet Specifications
Available thicknesses, widths, and sheet lengths accommodate different fabrication layouts. Customers can discuss their required dimensions and coating specifications before ordering.
Multiple Surface Treatment Options
Passivation, oiling, chrome-free treatments, and self-lubricating options are available within the published product range, subject to confirmation. These options help match the material surface to different downstream manufacturing processes.
Processing and Supply Support
Rosen supports steel sheet and coil supply, with slitting and cut-to-length processing options. Stock and customized supply arrangements can be discussed according to order specifications.
DX51D identifies a steel grade intended for general bending and forming, while ZF indicates a zinc-iron alloy coating. The complete designation describes a general-forming steel substrate with a galvannealed surface.
Both products use the same DX51D substrate and ZF coating. The main difference is their delivery form. Steel coil is supplied in a continuous wound format for processing lines, while steel sheet is supplied in cut lengths for direct use in sheet metal fabrication and manufacturing.
Yes. The zinc-iron alloy surface is suitable for subsequent painting and powder coating. Surface cleaning and pretreatment should be selected according to the specific paint system.
DX51D+ZF is suitable for general stamping and forming operations. For components involving deeper drawing or more complex deformation, higher-formability grades such as DX52D+ZF, DX53D+ZF, or DX54D+ZF may be more appropriate.
Rosen's published galvannealed steel range covers thicknesses of 0.5–2.5 mm, widths of 800–1800 mm, and sheet lengths of 1000–6000 mm. Specific DX51D+ZF combinations should be confirmed before ordering.
Please specify the steel grade, required thickness, width, sheet length, coating weight, surface treatment, order quantity, and intended application. Drawings or sample specifications can also help clarify your material requirements.
Need zinc-iron alloy coated steel sheets for automotive components, appliance panels, electrical enclosures, or general metal fabrication?
Rosen supplies DX51D+ZF Galvannealed Steel Sheet with different dimensional and surface treatment options for industrial manufacturing.
Share your required dimensions, coating specification, quantity, and application with our team. We will review your requirements and provide suitable material and quotation information.
Contact Rosen today to discuss your DX51D+ZF Galvannealed Steel Sheet requirements.
Material Grade and Applications
DX51D+ZF combines a DX51D steel substrate with a ZF zinc-iron alloy coating. DX51D belongs to the general forming category, making it suitable for common sheet metal manufacturing processes rather than highly demanding deep drawing applications.
Material Specification | Description |
|---|---|
Steel Grade | DX51D+ZF |
Applicable Standard | EN 10346 |
Base Material | DX51D |
Coating Designation | ZF |
Coating Type | Zinc-Iron Alloy Coating |
Forming Category | General Bending and Forming |
Product Form | Steel Sheet |
Automotive Sheet Metal Parts: Interior panels, brackets, covers, and formed components requiring painting or welding.
Home Appliances: Refrigerator panels, washing machine components, and other appliance sheet metal parts.
Electrical Enclosures: Control cabinet panels, electrical boxes, equipment housings, and distribution enclosures.
Door and Window Manufacturing: Metal door panels, door frames, and formed structural components.
Industrial Fabrication: Machine covers, metal housings, equipment panels, and fabricated sheet metal assemblies.
Coating Types and Surface Treatment Methods
DX51D+ZF uses a galvannealed zinc-iron alloy coating designated as ZF. Depending on the intended application, additional surface treatments can be specified to address storage protection, lubrication, painting preparation, and surface appearance.
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 appropriate surface treatment should be selected according to the customer's forming, painting, welding, storage, and finishing requirements. Actual availability should be confirmed when placing an order.
Available Range
Rosen supplies DX51D+ZF Galvannealed Steel Sheets in various dimensions for industrial processing and fabrication.
Parameter | Available Range |
|---|---|
Steel Grade | DX51D+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 dimensions and coating combinations should be confirmed according to production availability and order requirements.
Chemical Composition
DX51D+ZF uses a low-carbon steel substrate suitable for general forming and fabrication. The following table shows the chemical composition limits published in Rosen's material specifications.
Maximum values, mass percentage (%)
Grade | C | Si | Mn | P | S | Ti |
|---|---|---|---|---|---|---|
DX51D+ZF | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.03 | ≤0.20 |
Mechanical Properties
The mechanical properties of DX51D+ZF are intended for general bending and forming applications. These values help manufacturers evaluate the material before selecting it for sheet metal fabrication.
Property | Specification |
|---|---|
Yield Strength | 200–310 MPa |
Tensile Strength | 280–420 MPa |
Elongation (A80) | ≥30% |
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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