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Help Center0.4mm Galvanized Corrugated Sheet 7.5 Corrugation Pitch 35mm Depth
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our premium 0.4mm Galvanized Corrugated Sheet with 7.5 Corrugation Pitch and 35mm Depth. As a newly established yet rapidly growing manufacturer with an annual export value between US$50 million and US$100 million, we combine modern production lines with strict quality control to deliver corrugated sheets that meet international standards. Our product is designed for durability, ease of installation, and long-term performance in various climatic conditions.
This corrugated sheet features a precise 7.5-inch corrugation pitch (190.5 mm) and a 35 mm corrugation depth, providing excellent structural strength and water runoff capability. The 0.4 mm base thickness is achieved through hot-dip galvanizing, offering reliable corrosion resistance. Whether you need roofing for industrial warehouses, agricultural sheds, or residential buildings, this sheet is a cost-effective solution that does not compromise on quality.
Our factory is located in Liaocheng, Shandong, China, and we serve clients across North America, South America, Europe, Africa, Oceania, and Asia. With ISO9001 certification, we ensure each coil is tested for tensile strength, zinc coating weight, and dimensional accuracy. Below we detail the key features and specifications.
Key Features & Benefits
- Precise 7.5 Corrugation Pitch – Compatible with standard roofing accessories and purlin spacing, reducing installation time.
- 35 mm Depth – Enhanced load-bearing capacity and water drainage, ideal for areas with heavy rainfall.
- 0.4 mm Base Thickness – Lightweight yet strong; easy to transport and handle while maintaining structural integrity.
- Hot-Dip Galvanized Coating – Zinc coating from Z120 to Z275 g/m², offering excellent resistance to rust and corrosion.
- Customizable Length – Available in lengths from 1 to 12 meters, or as per your project requirements.
- Wide Application – Suitable for roof sheets, wall cladding, canopy, and temporary structures.
- Cost-Effective – Lower material cost compared to thicker gauges, without sacrificing performance.
- Easy Maintenance – The galvanized surface requires minimal cleaning and does not need painting.
Technical Specifications
| Parameter | Value |
| Base Steel Thickness | 0.4 mm (before coating) |
| Steel Grade | DX51D / SGCC |
| Zinc Coating | Z120 – Z275 g/m² (optional) |
| Corrugation Pitch | 7.5 inch (190.5 mm) |
| Corrugation Depth | 35 mm |
| Coil Width | 914 mm / 1000 mm (customizable) |
| Effective Width | Approx. 840 mm (after corrugation) |
| Length | 1 – 12 m (customizable) |
| Tensile Strength | ≥ 270 MPa (typical) |
| Surface Finish | Spangles / minimized spangle (optional) |
Detailed Product Advantages
Our 0.4mm galvanized corrugated sheet is engineered to deliver consistent performance. The combination of a 7.5-inch pitch and 35 mm depth creates a profile that maximizes stiffness while keeping weight low. This means fewer supports are needed during installation, saving both material and labor costs. The hot-dip galvanized coating provides a sacrificial layer that protects the steel from moisture, chemicals, and UV exposure, ensuring a service life of 15–20 years under normal conditions.
For clients in coastal or industrial environments, higher zinc coating weights (e.g., Z275) are available upon request. The sheets can be supplied in standard spangle or minimized spangle finish, depending on aesthetic preference. Each sheet is flat-packed or bundled with protective edge guards to prevent damage during transit.
We understand that different projects have unique requirements. Therefore, we offer customized lengths and optional color coating (if you need a painted finish, please inquire). Our team can also provide samples for quality verification before bulk orders.
Trust & Reliability
Hemaokang Steel (Shandong) Co., Ltd. has achieved ISO9001 certification for our quality management system. Although our company was established in 2025, we have quickly built a professional team of 51–100 employees and an export network spanning all major continents. Our annual export value of US$50–100 million reflects the trust our customers place in us. We strictly follow international standards (ASTM, JIS, EN) to ensure product consistency. Every shipment is accompanied by a mill test certificate (MTC) and can be inspected by third-party agencies like SGS or BV.
We are committed to providing competitive pricing without compromising on quality. Our location in Liaocheng, Shandong, gives us convenient access to raw materials and shipping ports. Whether you are a distributor, contractor, or builder, we invite you to experience the durability and reliability of our corrugated sheets. Contact us today for a quote or to request free samples.
Frequently Asked Questions (FAQ)
Q1: What is the actual thickness of the galvanized sheet?
A: The base steel thickness is 0.4 mm before coating. After hot-dip galvanizing, the total thickness increases by approximately 0.02–0.04 mm depending on the zinc coating weight. The product is referred to as 0.4 mm galvanized sheet.
Q2: Can this sheet be used for wall cladding?
A: Yes, it is suitable for both roofing and wall cladding. The 7.5 corrugation pitch and 35 mm depth provide good rigidity for vertical installation, and the galvanized surface resists weather exposure.
Q3: What zinc coating weight do you recommend for coastal areas?
A: For coastal or high-humidity environments, we recommend Z275 (275 g/m²) or higher. This provides extra corrosion resistance. Please specify your requirement when ordering.
Q4: How long does delivery usually take?
A: For standard dimensions, production takes 7–15 days after order confirmation. Shipping time depends on the destination. We work with reliable freight forwarders to ensure timely delivery.
Q5: Do you offer color-coated or painted versions?
A: While our standard product is galvanized only (silver gray), we can supply pre-painted (color-coated) sheets in various RAL colors upon request. Minimum order quantities may apply for custom colors.
Q6: What is the effective width coverage per sheet?
A: For a 914 mm coil width, the effective coverage after corrugation is approximately 840 mm, meaning you need to overlap the sheets by about 74 mm. For a 1000 mm coil, effective coverage is about 920 mm. This can vary slightly depending on the profiling machine.
Q7: Is the sheet easy to cut and install?
A: Yes, it can be cut with standard metal shears, nibblers, or a circular saw with a metal blade. Installation is similar to other corrugated profiles; we recommend using self-drilling screws with neoprene washers for waterproofing.
Q8: Do you provide free samples?
A: Yes, we offer free samples (A4 size or small piece) for quality evaluation. The buyer only needs to cover the shipping cost. Contact our sales team to arrange.
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