Spangle Free Galvanized Steel Coils 0.18mm-6mm Thick JIS G3302 Standard OEM

Spangle-Free Galvanized Steel Coils | 0.18-6mm Thick | JIS G3302 Standard | OEM Supply

Spangle-Free Galvanized Steel Coils are precision-engineered for industries requiring flawless surface finishes and strict adherence to ​JIS G3302 standards. With a ​smooth, uniform zinc coating (no visible spangle) and thickness options from ​ultra-thin 0.18mm to heavy-duty 6mm, these coils are ideal for automotive, electronics, and premium appliance manufacturing. The advanced galvanizing process ensures superior paint adhesion, weldability, and corrosion resistance (15–30+ years) while meeting exacting OEM specifications.

Key Benefits:

• ​Aesthetic Excellence: Mirror-like surface (Ra ≤0.5µm) for high-end painted or plated finishes.
• ​JIS G3302 Compliance: Certified for SGCC, SGH340, and SGCH1R grades, trusted in Japanese and Asian markets.
• ​OEM Flexibility: Custom widths (300–2,000mm), coil weights (3–25 tons), and zinc coatings (Z60–Z350).
• ​Corrosion Resistance: 100% chromate-free passivation for RoHS/REACH compliance and salt spray resistance (1,000+ hours).
• ​Cost Efficiency: 15–20% lower material waste vs. spangled coils due to precision stamping.
• ​Fast Prototyping: 7-day sample lead time with CAD/CAM file compatibility for rapid OEM integration.

​2. Technical Specifications

​3. Why Choose Us for OEM Supply?

Competitive Advantages:

• ​Price Leadership: ​30% lower than Japanese/Korean suppliers with identical JIS G3302 certification.
• ​OEM-Centric Service: Dedicated R&D team for custom alloy adjustments, hardness (HRB 40–80), and coating thickness.
• ​Zero-Defect Assurance: 100% automated surface inspection (AOI) and eddy current testing for coating uniformity.
• ​Sustainable Solutions: Halogen-free, low-VOC production with carbon-neutral shipping options.
• ​Just-in-Time Delivery: 10–15 days lead time for bulk orders (50+ tons) with Kanban system integration.
• ​Technical Partnership: Free DFM (Design for Manufacturing) analysis to optimize part performance and costs.

​4. Premium Industrial Applications

FAQ
1. Do you have your own factory?

Yes, we do. We have our own factory, we can provide stable inventory, competitive prices and good quality.

2. What is your surface treatment method?

We can make special logos, icons or other things you order on the products. No matter what, we can do it as per your request.

3. What kind of payment can you accept?

1).100% irrevocable L/C at sight.

2).30% T/T in advance, the balance according to the copy of the bill of lading.

3).30% T/T in advance and balance of L/C.

4. How about the delivery time?

5-7 days after deposit received.

5. Why choose our company?

A). We have more stable inventory, competitive prices and good quality.

B). We have more integrity experience in international trade.

C). We can provide personal customization services, such as adding your company's logo, specified colors, etc. to the product.

6. What is the use of the product?

Galvanized Steel Coils, industry, chemical industry, secondary processing, construction, etc.

7. Can you send samples for inspection?

We can. We can send you samples for free.

8. Can you make products according to our requirements?

Yes, we will strictly follow your requirements, such as packaging method, product length, product handling method, etc.

JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.

Specializing in premium stainless steel products (sheets, pipes, high-pressure tubes, bars), aluminum/steel coils, galvanized steel, and copper alloys. Equipped with advanced cold-rolling mills, CNC machining centers, and plasma cutting systems, we supply precision-engineered materials worldwide. Partnered with automotive giants in Germany, construction firms in the Middle East, and energy projects in Asia-Pacific. Committed to sustainable innovation, we offer OEM customization and JIT delivery. Let’s build resilient supply chains for aerospace, marine, and industrial applications