Contact Platform Support
Help Center0.35mm Thickness Galvanized Steel Coil Z275 G60 Standard Compliant for Downpipe
Product Spotlights
Related Products
-
Z275 Hot Dipped Galvanized Coil 0.8mm for Construction Roofing ApplicationNegotiableMOQ: 1 Ton -
Pre-Painted Galvanized Coil 0.45mm DX51D Z275 for Building MaterialNegotiableMOQ: 1 Ton
-
Galvanized Coil 0.4mm Z275 ASTM A653 Standard for HVAC DuctingNegotiableMOQ: 1 Ton
-
Q195 Q235 Hot Dipped Galvanized Round Pipe ERW 2.0mm-4.0mm Wall Thickness DN15-DN200NegotiableMOQ: 1 Ton
-
Galvanized Steel Pipe With Mill Test Report ASTM A53 Q235B 1/2-8 Inch 6m Length WarrantyNegotiableMOQ: 1 Ton
Hemaokang Steel (Shandong) Co., Ltd., a trusted supplier in the global steel industry since 2025, presents our premium 0.35mm Thickness Galvanized Steel Coil Z275 G60 Standard Compliant for Downpipe. With an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we ensure that every coil meets the highest standards of corrosion resistance, formability, and dimensional accuracy. This product is specifically engineered for downpipe manufacturing, offering excellent durability and ease of fabrication.
Our galvanized steel coil features a balanced zinc coating of Z275 (275g/m²) and G60 (60g/m²) dual certification, guaranteeing superior protection against rust and weathering. The ultra-thin 0.35mm thickness reduces material costs while maintaining structural integrity, making it an ideal choice for rainwater drainage systems. Backed by ISO9001 certification and extensive export experience across North America, South America, Europe, Asia, Africa, and Oceania, we provide reliable solutions for your downpipe production needs.
Key Features & Technical Specifications
- Precision Thickness: 0.35mm ±0.02mm tolerance ensures consistent forming and bending for downpipe profiles.
- High Zinc Coating: Z275 / G60 dual standard provides excellent corrosion resistance, extending service life in outdoor environments.
- Excellent Adhesion: The galvanized layer adheres firmly to the base steel, preventing flaking during deep drawing or roll forming.
- Surface Quality: Available in regular spangle, minimized spangle, or zero spangle finish to suit aesthetic requirements.
- Mechanical Properties: Typical yield strength 280–350 MPa, tensile strength 350–480 MPa, elongation ≥20% (depending on grade).
- Workability: Suitable for stamping, bending, and welding without cracking or delamination.
- Eco-Friendly: Manufactured with lead-free and chromium-free passivation, complying with environmental regulations.
| Parameter | Value |
|---|---|
| Thickness | 0.35mm |
| Zinc Coating (Front) | Z275 (275g/m²) / G60 (60g/m²) |
| Coil Width | Customizable (typical: 1000mm, 1219mm, 1250mm) |
| Coil Inside Diameter | 508mm / 610mm (optional) |
| Coil Weight | 3–8 tons per coil (customizable) |
| Surface Treatment | Regular spangle / Minimized spangle / Zero spangle / Chromate-free |
| Yield Strength (Typical) | 280–350 MPa |
| Tensile Strength (Typical) | 350–480 MPa |
| Elongation | ≥20% |
| Standard Compliance | ASTM A653 / JIS G3302 / EN 10143 |
Benefits for Downpipe Manufacturers
- Cost Efficiency: The ultra-thin 0.35mm gauge reduces material consumption without compromising strength, lowering your overall production cost.
- Enhanced Corrosion Resistance: Z275 zinc coating provides up to 2× longer protection compared to standard G60, ideal for harsh outdoor exposure.
- Superior Formability: Excellent ductility allows for complex downpipe shapes (round, rectangular, or custom profiles) with minimal springback.
- Consistent Quality: Strict process control ensures uniform thickness and coating across the entire coil, reducing scrap and rework.
- Fast Delivery: With our large inventory and efficient logistics, we can ship within 15–20 days after order confirmation.
- Custom Packaging: Coils are wrapped with waterproof paper, steel strapping, and export-worthy wooden pallets to prevent damage during transit.
Our downpipe-grade galvanized steel coil has been tested for salt spray resistance (up to 500 hours in neutral salt spray test) and adhesion (no peeling after 180° bending). The product is widely used in residential and commercial rainwater systems, gutter accessories, and architectural flashings. We also offer slitting and cut-to-length services to meet your specific width requirements.
Why Choose Hemaokang Steel?
As a young but rapidly growing company, Hemaokang Steel (Shandong) Co., Ltd. has achieved an impressive annual export volume of US$50 million – US$100 million within its first year of operation. This remarkable growth is driven by our commitment to quality, reliability, and customer-centric service. We are ISO9001 certified, ensuring that every production process meets international quality management standards. Our products are exported to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions, serving a diverse range of clients from downpipe manufacturers to construction material distributors.
We understand that downpipe production demands consistent material performance. That's why we maintain stringent quality checks at every stage: from raw material procurement (using high-quality SPCC/SPHC steel) to hot-dip galvanizing, to final inspection. Our experienced team of 51–100 employees is dedicated to providing prompt technical support and after-sales service. We also offer free samples (freight collect) for customer evaluation before bulk orders.
Ready to optimize your downpipe manufacturing? Contact us today to request a quote or discuss your customized requirements. With our competitive pricing, reliable quality, and global shipping capabilities, we are your ideal partner for galvanized steel coils.
Frequently Asked Questions
-
Q: What is the difference between Z275 and G60 coating?
A: Z275 refers to a zinc coating weight of 275 g/m² measured by the triple-spot test (metric system). G60 is the equivalent in the imperial system, representing 0.60 oz/ft² (approximately 180 g/m² total). However, our product is manufactured to meet both standards, ensuring dual compliance for global markets. -
Q: Can this 0.35mm coil be used for rainwater downpipes in cold climates?
A: Yes. The galvanized coating provides excellent corrosion resistance even in snowy or rainy conditions. However, we recommend considering an additional paint coating for extreme cold environments where ice formation may cause mechanical stress. -
Q: What is the minimum order quantity (MOQ)?
A: Our standard MOQ is 1 coil (approximately 3–8 tons, depending on width and weight). For trial orders, we can accept smaller quantities; please contact our sales team for details. -
Q: Do you provide cut-to-length or slitting services?
A: Yes, we offer slitting (narrow width) and cut-to-length (sheets) services upon request. Additional charges may apply based on the processing requirements. -
Q: How is the coil packaged for export?
A: Each coil is wrapped with waterproof kraft paper, VCI anti-rust paper, steel strapping, and then placed on a wooden pallet. The outer packaging is reinforced with plastic film to protect against moisture and mechanical damage during sea freight. -
Q: Is the product suitable for welding?
A: Yes, the galvanized steel can be welded using standard techniques. However, we recommend grinding the zinc coating at the weld area to avoid zinc fumes and ensure strong joints. Our technical team can provide welding guidelines. -
Q: Can you provide certificates of compliance?
A: Absolutely. We issue a Mill Test Certificate (MTC) for each batch, including chemical composition, mechanical properties, and coating weight test results. ISO9001 certification is also available upon request. -
Q: What is the lead time for a standard order?
A: For standard sizes (0.35mm thickness, 1000mm width, Z275 coating), the lead time is 15–20 days after confirmation of payment. Custom sizes or special surface treatments may require 25–30 days.
Send Inquiry to This Supplier
You May Also Like
-
Pre Galvanized Steel Pipe 1/2-4 Inch 0.8mm-2.0mm Thickness Z80-Z180 Zinc Coating For TelescopicNegotiableMOQ: 1 Ton
-
Hot Dipped Galvanized Steel Pipe For Building Structure Q235B 2.5mm Thickness 6m LengthNegotiableMOQ: 1 Ton
-
Standard Compliant Galvanized Steel Pipe 1-6 Inch Schedule 40 Heat Treatment 1 Year WarrantyNegotiableMOQ: 1 Ton
-
Galvanized Steel Pipe Used For Agricultural Irrigation 1-6 Inch Schedule 40 6m LengthNegotiableMOQ: 1 Ton
-
2 Inch Galvanized Steel Pipe Schedule 40 ASTM A53 6.0m Length Hot Dip Galvanized For StructuralNegotiableMOQ: 1 Ton
-
ASTM A53 Q235B Hot Dipped Galvanized Steel Pipe Sch40 1/2-8 Inch 6m Length For ConstructionNegotiableMOQ: 1 Ton
-
Galvanized Steel Pipe 1.5mm-4.0mm Wall Thickness 6m Length Hot Dipped Zinc Coating 300g/m2NegotiableMOQ: 1 Ton
-
1/2-8 Inch Galvanized Steel Pipe ERW Welded Q235B ASTM A53 6m Standard Length For Water SupplyNegotiableMOQ: 1 Ton
-
1/2 Inch to 6 Inch Hot Dip Galvanized Steel Pipe BS 1387 Class C Pre-galvanized Steel Tube Round SectionNegotiableMOQ: 1 Ton
-
Galvanized Steel Pipe for Greenhouse Frame Structure 2 Inch 3 Inch Q235 Hot Dip Galvanized Round TubeNegotiableMOQ: 1 Ton
