DX51D+Z40 Galvanized steel, refers to hot-dipped galvanized steel with a zinc layer weight of 40g/㎡, “DX51D” refers to cold formed, hot-dip galvanized sheet. The “z40” usually refers to the weight of the zinc layer, i.e. 40g per square meter (sum of both sides), and the corrosion resistance of 5-20 years.
Wanzhi – DX51D Z40 Galvanized Steel
DX51D Z40 Galvanized steel is one of the material grades in EN 10346:2015 (European Standard), the equivalent international standards are ASTM A653 and GB/T 2518. DX51D Z40 has good plasticity and toughness, can be bending, stamping and other deep processing, is often used to make steel structures, pipelines and containers or as a substrate and then the surface of the rollers coated with paint to make pre-painted galvanized steel.
Specification
| Material | SGCC,S350GD+Z,S550GD+Z,DX51D,DX52D,DX53D, etc |
|---|---|
| Thickness | 0.12mm-6mm |
| Width | The conventional width below 0.5mm is 1000mm, 1200mm, and above is 1000, 1250mm |
| coil weight | 8-10 tons /customized |
| Tolerance | "+/-0.02 mm |
| Substrate Type | Hot rolled coil, Cold rolled coil |
| Surface structure | Zero spangles, Small spangles, Regular spangles, Big spangles |
| Zinc layer thickness | 30g/㎡-275g/㎡ (Z275/G90) |
| Standard | AISI, ASTM, BS, GB, JIS |
| Implementation standards | GB/T2518 GB/T25052, EN10346, JIS G3302, ASTMA653 |
| Certificates | SGS, ISO 9001,CE |
Substrate Composition
| elements | C≤0.08% | Mn≤0.45% | P≤0.025% | S≤0.025% |
Mechanical property
| Property | Value | Standard |
| Yield Strength (Rp0.2) | 140-260 MPa | ISO 6892-1 |
| Tensile Strength (Rm) | 270-350 MPa | ISO 6892-1 |
| Elongation (A80) | ≥22% | ISO 6892-1 |
| Hardness (HRB) | ≤65 | ISO 6506 |
Z40 Galvanized Surface
| Surface effect | Regular zinc spangle， large spangle， small spangle， smooth surface， matte surface，embossed surface，etc. |
| Surface finished | Painting, phosphating, passivating, oiling, etc. |
Advantages and Applications of DX51D Z40 Galvanized Steel
The thicker the galvanized steel coating, the stronger the corrosion resistance, but the cost and processing difficulty increase accordingly. DX51D Z40 has significant advantages in terms of cost, processing performance, and light weight, and is an economical choice for temporary/lightweight/high-precision processing, realizing the balance between the “corrosion budget” and the “cost budget”. We have achieved a balance between “corrosion budget” and “cost budget”.
Advantages
- Low cost: Low material cost due to thin galvanized layer and low processing cost.
- Ease of processing: z40 galvanized steel has better ductility, good welding performance, low risk of stamping cracks, and strong paint adhesion.
- Lightweight: Lightweight material, easy to transport and apply.
Application
- Lightweight steel structures
- Mobile equipment
- Electronic equipment housings
- Precision instrument fittings
- Temporary construction (exhibition erection, temporary storage)
- Simple metal products/furniture manufacturing (shelves, lockers)
- Interior decoration
- Packaging (shipping pallets, protection)
DX51D Z40 vs. Z100 Z150 Z180 Z275
The zinc coating of DX51D+Z galvanized steel can be selected according to the application, from dry to moderately corrosive environments, coastal environments, extreme industrial zones, to find the ideal corrosion-resistant material.
| Code | Zinc Coating Weight (g/m²) | Corrosion Resistance | Salt Spray Test (h) | Bending Radius (t) | Surface Hardness (HV) |
| DX51D+Z40 | 40 | Low (C1) | 500-800 | ≥0.5t | 60-80 |
| DX51D+Z100 | 100 | Medium (C2/C3 environment) | 1000-1500 | ≥0.8t | 70-90 |
| DX51D+Z150 | 150 | Strong (C4 coastal environment) | 1500-2000 | ≥0.8t | 70-90 |
| DX51D+Z180 | 180 | Strong (High humidity/Industrial environment) | 2000-2500 | ≥1.0t | 90-110 |
| DX51D+Z275 | 275 | Very Strong (C5 Extreme) | 3000+ | ≥1.0t | 90-110 |
DX51D Z40 Galvanized Steel Factory
Wanzhi Group DX51D Z40 galvanized steel factory includes hot dip galvanized steel production line, quality control room, sample room, we can provide OEM, ODM service of galvanized steel according to different applications, of course, our factory has been certified by ISO9001, ISO14001 and so on, welcome to visit our factory.
Galvanized Steel Production Line
Our hot dip galvanized steel production line, with an average production capacity of 20,000 tons per month, has cold rolled steel coils and hot rolled steel coils in stock, with a lead time of as fast as 5 days and as late as 45 days (for customized orders). If you plan to request samples for quality control before purchasing, please contact us and we will provide samples for you.
DX51D Z40 Customer Visit
Our factory is located in Boxing County, Binzhou City, Shandong Province, China. Recently, we have just had a visit from a customer of DX51D Z40 hot dip galvanized steel coil. The customer placed an order for 200 tons of large spangle galvanized steel coil, and then waited for the completion of the production, and then came to the factory to accept the order in person. Wanzhi Group supports customers’ online factory inspection, third party inspection and on-site inspection.
Purchasing Advice
The zinc layer of galvanized steel not only determines the corrosion resistance, but also the price of the steel. The later the zinc layer, the higher the cost. Selecting the right zinc layer for the environment and the expected life of the project not only reduces waste, but also reduces the cost of the project.
- Minimum zinc coating for project = environmental corrosion rate × project design life × safety factor 1.2
Z40/Z100 galvanized steel is an economical choice for Environmental Class C1 (dry indoors) and has a wide range of applications and processability, either as a direct galvanized product for construction and industrial materials, or as a pre-painted steel substrate that can be painted and reused. Wanzhi Group has galvanized steel, painted steel coils and sheets, and finished material processes, welcome to contact us for your product details.