galvanized steel
DX51D+Z EN 10346 galvanized steel combines the base steel grade DX51D with a Z zinc coating as specified in the EN 10346 standard. This product is engineered to deliver excellent corrosion resistance, formability, and surface finish for demanding industrial and construction applications.
DX51D+Z is a common hot-dip galvanized steel material commonly used in various construction and automotive industries. D stands for cold-formed steel, X51 is the performance grade, and +Z is the galvanizing process identifier, GNEE STEEL Group produces regular zinc layers from z30 to z350, with popular hot-dip galvanized specifications such as DX51D Z100, Z140, Z180, Z275.
Ingredients (chemical composition)
| Element | Content Range (wt%) | Function |
|---|---|---|
| Carbon (C) | ≤0.12 | Enhances ductility. |
| Manganese (Mn) | ≤0.60 | Increases strength. |
| Phosphorus (P) | ≤0.025 | Prevents cold brittleness. |
| Sulfur (S) | ≤0.025 | Improves machinability. |
| Aluminum (Al) | ≥0.020 | Improves coating adhesion. |
Performance Characteristics
| Property | Parameter Range |
|---|---|
| Tensile Strength | 270~350 MPa |
| Yield Strength | 140~240 MPa |
| Elongation (A80) | ≥22% (fracture elongation, suitable for deep drawing) |
| Galvanized Coating Weight | Common grades: Z60 (60g/m²), Z120 (120g/m²), Z180 (180g/m²), Z275 (275g/m²), etc. |
| Corrosion Resistance | Salt spray test: 100~500 hours without red rust. |
| Surface Quality | Zinc spangle surface (regular spangle, large spangle, small spangle) or smooth surface (no zinc flower, suitable for spraying). |
Materials and Specifications
| Parameter | Specification Range |
|---|---|
| Standard | EN 10346 Standard |
| Substrate Material | Low carbon steel (cold-rolled sheet) |
| Coating Type | Pure zinc coating (GI) or zinc-iron alloy coating (GA), typically pure zinc coating (GI) |
| Substrate Thickness | 0.15mm ~ 6.0mm |
| Zinc Coating Grade | Z60, Z80, Z100, Z120, Z150, Z180, Z200, Z275 (selected based on corrosion resistance requirements) |
| Standard Width | 600mm ~ 1500mm (customizable for slitting) |
Comparison of Similar Materials
DX51D+Z is the material designation in the European Standard EN 10346, and there are similar material grades in American, Japanese and Chinese standards, such as CS Type B, SGCC, DC51D+Z, etc.
| Standard/Grade | Corresponding Material |
|---|---|
| EN 10346 | DX52D+Z, DX53D+Z, DX54D+Z |
| ASTM A653 | CS Type B (US standard, similar tensile strength, zinc coating expressed in oz/ft²) |
| JIS G3302 | SGCC (Japanese galvanized steel sheet) |
| GB/T 2518 | DC51D+Z (Chinese standard, similar performance to DX51D) |
GNEE STEEL's production and inspection process ensures every batch of DX51D+Z EN 10346 galvanized steel meets technical specifications and performance expectations. We offer detailed inspection reports and professional technical support to simplify client procurement.
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Mechanical Properties
| Grade | Coating | Standard | Yield strength Re (MPa) | Tensile strength Rm (MPa) | Elongation A80 (min %) | r90 (min) | n90 (min) |
|---|---|---|---|---|---|---|---|
| DX51D | Z, ZA, ZF | EN 10346 | - | 270 – 500 | 22 | - | - |
| DX52D | Z, ZA, ZF | EN 10346 | 140 – 300 ²) | 270 – 420 | 26 | - | - |
| DX53D | Z, ZA, ZF | EN 10346 | 140 – 260 | 270 – 380 | 30 | - | - |
| DX54D | Z, ZA, ZF | EN 10346 | 120 – 220 | 260 – 350 | 36 | 1.6 ⁴) | 0.18 |
| DX56D | Z, ZA, ZF | EN 10346 | 120 – 180 | 260 – 350 | 39 | 1.9 ⁵) | 0.21 ⁵) |
| DX57D | Z, ZA | EN 10346 | 120 – 170 | 260 – 350 | 41 | 2.1 ⁵) | 0.22 |
FAQ:
1. Is DX51D galvanized steel suitable for outdoor use?
Answer: Yes. Its zinc coating provides excellent corrosion protection, making it ideal for outdoor construction and infrastructure projects.
2. Can DX51D steel be slit or cut to length?
Answer: Yes. DX51D coils can be slit into strips or cut into sheets according to customer specifications.
3. How does DX51D compare with DX52D and DX53D?
Answer: DX51D is for general forming, while DX52D and DX53D offer improved deep-drawing performance.
4. What is the typical delivery time for DX51D galvanized steel?
Answer: Delivery time is usually 15–30 days, depending on order size, specifications, and production schedule.
5. Is DX51D suitable for welding?
Answer: Yes. DX51D provides good weldability using common welding processes with proper parameter control.
Packaging and shipping
