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Help CenterASTM A755 Compliant Prepainted Galvalume Steel Coil 0.35mm Gauge for Industrial Cladding
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer our premium ASTM A755 Compliant Prepainted Galvalume Steel Coil with a precise 0.35mm gauge, engineered specifically for demanding industrial cladding applications. As a newly established yet rapidly growing enterprise—backed by an annual export value ranging from US$50 million to US$100 million and a dedicated team of 51-100 skilled professionals—we combine advanced manufacturing expertise with rigorous quality control to deliver coils that meet the highest international standards. Our product ensures outstanding corrosion resistance, superior color retention, and exceptional formability, making it the ideal choice for architects, contractors, and building material distributors seeking long-lasting, aesthetically pleasing cladding solutions.
This prepainted galvalume steel coil is produced in full compliance with the ASTM A755 specification, which governs the performance requirements for steel sheet, metallic-coated by the hot-dip process and prepainted. The 0.35mm gauge strikes an optimal balance between structural integrity and lightweight ease of handling, enabling efficient installation without compromising durability. The galvalume coating (55% aluminum, 43.5% zinc, and 1.5% silicon) offers up to four times the corrosion resistance of traditional galvanized steel, while the multi-layer paint system—available in polyester, PVDF, or SMP formulations—provides excellent UV resistance, adhesion, and flexibility.
Key Product Features & Specifications
- ASTM A755 Compliance: Fully meets the standard for structural and architectural prepainted steel, ensuring reliable performance in diverse climates.
- 0.35mm Gauge Precision: Tight thickness tolerance (±0.02mm) guarantees consistent quality and simplifies installation for roll-forming and profiling.
- Superior Corrosion Resistance: Galvalume coating provides exceptional protection against rust, red rust, and edge creep, extending service life significantly.
- Prepainted Finish Options: Choose from a wide range of RAL colors and gloss levels, with either standard polyester (HDP), PVDF (Kynar 500), or silicone-modified polyester (SMP) topcoats.
- Excellent Formability: The substrate and paint system withstand bending, deep drawing, and profiling without cracking or peeling, making it suitable for complex cladding profiles.
- UV & Weather Resistance: High-performance paint layers resist fading, chalking, and chalking, even in intense sun or coastal environments.
- Lightweight Yet Strong: At only 0.35mm, the coil reduces structural load while maintaining necessary tensile strength (typical yield strength ≥ 550 MPa after processing).
- Eco-Friendly Production: All coatings are lead-free and comply with RoHS directives; our process minimizes VOC emissions.
Technical Parameters (Typical Values)
| Property | Value / Option |
| Base Metal Thickness | 0.35 mm (±0.02 mm) |
| Coating Mass (Galvalume) | AZ150 / AZ180 (customizable per ASTM A792) |
| Coil Width | 300 – 1250 mm (custom narrowing available) |
| Paint Thickness (topcoat) | 20 – 35 μm (polyester), 25 – 30 μm (PVDF) |
| Reverse Side | Primer + backer coat (standard), or plain galvalume |
| Hardness (Pencil) | F – HB (depending on coating type) |
| MEK Resistance (double rubs) | ≥ 100 for PVDF, ≥ 50 for polyester |
| Salt Spray Test | > 1000 hours (5% NaCl, per ASTM B117) |
Benefits for Industrial Cladding Projects
- Cost-Efficient Longevity: With its robust coating system, this coil reduces maintenance cycles and replacement costs over the building's lifetime.
- Design Flexibility: Available in a spectrum of colors and finishes, it enables architects to achieve distinctive visual appearances for facades, roofs, and canopies.
- Quick & Easy Installation: Consistent gauge and precise flatness minimize waste and speed up roll-forming and onsite assembly.
- Compatibility with Accessories: Works seamlessly with standard fasteners, sealants, and insulation systems used in industrial cladding.
- Global Logistics Support: Shipped from Qingdao Port with seaworthy packing, we serve markets in North America, South America, Europe, Asia, Africa, and Oceania.
Backed by ISO9001:2015 quality management certification and a team with decades of combined experience in steel processing, Hemaokang Steel ensures every coil undergoes rigorous inspection—including thickness, coating weight, adhesion, and color consistency tests. Our annual export volume of US$50M–US$100M reflects the trust that global clients place in our products and service. Whether you require specific color matching, custom width slitting, or specialized packaging, we are ready to accommodate your needs with competitive pricing and prompt delivery.
Choose our ASTM A755 Compliant Prepainted Galvalume Steel Coil for your next industrial cladding project and experience the difference that quality, reliability, and professional support can make. Contact our sales team today for a quotation, sample, or technical consultation.
Frequently Asked Questions (FAQ)
Q1: What does ASTM A755 compliance mean for this coil?
A: ASTM A755 is a standard that specifies performance requirements for prepainted steel sheet used in building panels. Our coil meets these criteria, ensuring reliable adhesion, flexibility, and weather resistance for industrial cladding.
Q2: Can I get the coil in a different thickness beyond 0.35mm?
A: Yes, while 0.35mm is a standard gauge for cladding, we can supply thicknesses ranging from 0.25mm to 1.2mm upon request. Please specify your requirements.
Q3: What colors and gloss levels are available?
A: We offer a full RAL color palette, including metallic, matte, and glossy finishes. Custom color matching is available for large orders. Gloss levels typically range from 30% to 70%.
Q4: Is the paint system suitable for coastal or high-humidity areas?
A: Absolutely. For marine environments, we recommend our PVDF (Kynar 500) or high-durability polyester (HDP) options, which provide enhanced resistance to salt spray and UV exposure.
Q5: What is the minimum order quantity (MOQ)?
A: Standard MOQ is 20 metric tons per specification. For trial orders or smaller quantities, please consult our sales team—we do our best to accommodate.
Q6: How is the coil packaged for export?
A: Each coil is tightly wrapped with waterproof paper, plastic film, and steel strapping over a wooden pallet or eye-to-sky configuration. Additional packaging (e.g., anti-rust VCI paper) is available upon request.
Q7: Do you provide samples before bulk order?
A: Yes, we supply free samples (A4 size or small coil sample) with freight collect. Production samples can be arranged after order confirmation.
Q8: What are the payment terms?
A: We typically accept T/T (30% deposit, 70% against copy of B/L) or L/C at sight. Flexible terms are negotiable for long-term partnerships.
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