Product Description
Continuously hot-dip zinc coated low-carbon steel strip and sheet designed for cold forming applications. DX54D+Z provides excellent deep-drawing quality, corrosion resistance, and consistent mechanical performance.
Product Overview
| Feature | Specification |
|---|---|
| Grade | DX54D+Z |
| Steel Quality | Drawing quality |
| Coating Finish | N (Normal spangle), M (Minimized spangle), R (Regular zinc-iron alloy coating) |
| Surface Quality | A (As coated), B (Improved surface), C (Best quality surface) |
| Surface Treatment | C (Chemical passivation), O (Oiling), CO (Chemical passivation + oiling), S (Sealed), P (Phosphated), U (Untreated) |
| Coating Mass | Z60, Z80, Z100, Z140, Z200, Z225, Z275, Z350, Z450, Z600 |
| Coating Type | Z (Pure Zinc) |
| Applicable Standards | EN 10346 |
| Typical Size Range | Thickness: 0.3–3.0 mm; Width: 600–1500 mm (customizable) |
Chemical Composition (% by mass, max)
| Grade | Material No. | C | Si | Mn | P | S | Ti |
|---|---|---|---|---|---|---|---|
| DX54D+Z | 1.0306+Z | 0.12 | 0.50 | 0.60 | 0.10 | 0.045 | 0.30 |
Notes: Low carbon content ensures excellent formability, weldability, and deep-drawing performance.
Mechanical Properties
| Grade | Material No. | R90 min | N90 min | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation A80 min (%) |
|---|---|---|---|---|---|---|
| DX54D+Z | 1.0306+Z | 1.6 | 0.18 | 120–220 | 260–350 | ≥36 |
Highlights:
High elongation for deep drawing and complex shapes
Balanced yield and tensile strength for structural stability
Excellent surface quality suitable for painting, pre-coating, or decorative finishes
Products Applications
DX54D+Z is widely used where cold forming, corrosion resistance, and deep drawing are required:
Automotive: Body panels, inner and outer components, frames
Household Appliances: Washing machines, refrigerators, oven panels
Construction: Roofing sheets, wall cladding, structural steel profiles
Industrial Components: Cabinets, enclosures, tubes, and fittings
Coating & Surface Treatment Notes
Coating Options: Pure zinc coatings provide long-term corrosion protection. Alloyed zinc-iron coatings (R type) increase wear resistance.
Surface Treatment: Options like chemical passivation (C), oiling (O), phosphating (P), and sealing (S) enhance corrosion resistance, handling, and paint adhesion.
Finish: N, M, or R spangles ensure aesthetic and functional surface quality for visible applications.
DX54D+Z galvanized steel is a high-performance, low-carbon steel strip/sheet ideal for industries requiring deep-drawing capabilities, corrosion protection, and excellent surface finish.
It offers flexibility in coating, thickness, surface treatment, and finish, making it highly versatile for modern industrial and architectural applications.
Q1: What is DX54D+Z steel?
DX54D+Z is a continuously hot-dip galvanized, extra deep drawing cold-rolled steel grade defined by EN 10346. "DX54D" indicates the base steel has higher formability and lower yield strength than DX53D, while "+Z" denotes a zinc coating on both sides for corrosion protection.
Q2: Which standard applies to DX54D+Z steel?
DX54D+Z is produced according to EN 10346, which covers chemical composition, mechanical properties, zinc coating mass, surface quality, and dimensional tolerances for continuously galvanized flat steel.
Q3: What mechanical properties does DX54D+Z have?
DX54D+Z generally features a tensile strength of approximately 270–420 MPa, a low yield strength for enhanced formability, and a minimum elongation of around 28% (A80), making it ideal for complex stamping, deep drawing, and bending operations.
Q4: How does DX54D+Z differ from DX53D+Z?
DX54D+Z has slightly lower yield strength and higher elongation compared to DX53D+Z, which makes it more suitable for deep-drawing or highly formed components, where avoiding cracking and spring-back is critical.
Q5: What does the "+Z" coating indicate?
The "+Z" symbol represents a continuous hot-dip zinc coating applied to both sides of the steel. This sacrificial coating provides corrosion resistance, prolonging the service life of the material in atmospheric or mildly corrosive conditions.
Q6: What zinc coating weights are available for DX54D+Z?
Typical coating weights include Z10, Z15, Z20, Z25, Z30, and higher. These values represent the total zinc mass in g/m² on both sides. Heavier coatings improve corrosion resistance but may slightly reduce formability.
Q7: Can DX54D+Z be welded?
Yes, DX54D+Z can be welded using standard resistance and arc welding methods. Zinc evaporation may occur locally during welding, so proper ventilation and process control are recommended.