Electrolytic Tinplate Sheet 0.30mm Thickness T4 Temper for Crown Closures
Product Spotlights
Shandong Sino New Material Co., Ltd. offers high-quality Electrolytic Tinplate Sheet with a precise thickness of 0.30mm and T4 temper, specifically engineered for the production of crown closures. As a reliable manufacturer established in 2018 with a 10,000-30,000 square meter factory and an annual export value exceeding US$2.5 million, we ensure stringent quality control and consistent supply. Our tinplate delivers excellent formability, corrosion resistance, and food-grade safety, making it the ideal choice for beverage and bottle cap manufacturers worldwide.
Key Features & Technical Specifications
- Uniform Thickness Tolerance: ±0.01mm precision ensures consistent cap forming and sealing performance.
- T4 Temper (Annealed): Optimal hardness and ductility for deep drawing without cracking – perfect for crown cap shaping.
- High Tin Coating Adhesion: Provides superior corrosion protection and maintains product purity for food contact.
- Customizable Dimensions: Widths from 600mm to 1050mm, coil or sheet as per your production line needs.
- Excellent Flatness: Minimal oil film and no edge wave, ensuring smooth printing and lining processes.
- Certified Quality: Manufactured under ISO9001 & ISO19011:2000 quality management systems.
Typical Physical & Mechanical Parameters
| Parameter | Value |
| Thickness | 0.30mm (±0.01mm) |
| Temper Designation | T4 (Rockwell hardness HR30T ~ 58-64) |
| Tin Coating Weight | 2.8/2.8 g/m² (standard), other options available |
| Yield Strength | 290-370 MPa (approx.) |
| Elongation | ≥ 20% |
| Surface Finish | Bright or Matte (customer choice) |
The T4 temper ensures that the tinplate can withstand the rigorous stamping and curling process of crown closure production without failure. Our sheets are cut with clean edges and minimal burr, reducing tool wear and downtime. The material is also designed to accept high-quality lithographic printing and internal lacquer coating, meeting the aesthetic and safety requirements of beverage brands.
Why Choose Shandong Sino New Material?
With 101-200 experienced employees and an overseas office, we serve clients across North America, South America, Europe, Southeast Asia, Africa, the Middle East, and more. Our factory operates modern production lines and rigorous testing facilities to ensure every shipment meets international standards. Porting from Qingdao, Tianjin, or Shanghai, we offer flexible logistics to meet your delivery deadlines. We have maintained ISO9000 and ISO19011:2000 certifications since our inception, reflecting our commitment to quality and continuous improvement.
To guarantee long-term partnership, we provide free sample approval before mass production and offer customized packaging (palletized or wooden crate). Our technical team is ready to discuss your specific crown closure dimensions, required tin coating weight, and any special surface treatment. Contact us today to request a quote and discover why numerous cap manufacturers trust our electrolytic tinplate for their most demanding applications.
Frequently Asked Questions
-
Q: What is the typical tolerance for thickness?
A: We guarantee ±0.01mm for 0.30mm sheets, ensuring consistent cap forming. -
Q: Can you supply tinplate with different tin coating weights?
A: Yes, options range from 1.1/1.1 to 11.2/11.2 g/m². Standard for crown closures is 2.8/2.8. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ for sheets is typically 20 metric tons, but smaller trial orders are negotiable. -
Q: Does the material meet food contact safety standards?
A: Yes, our tinplate complies with FDA and EU directives for food contact materials. -
Q: How is the product packaged for export?
A: Sheets are packed in seaworthy bundles with protective plastic film and metal strapping, or as per your request. -
Q: Can you provide samples before bulk order?
A: Absolutely. We offer free A4-sized samples; you only pay shipping. -
Q: What is the lead time for production?
A: Usually 15-20 working days after confirmation, depending on quantity. -
Q: Do you ship to my country?
A: We export to all major markets worldwide. Please contact us for shipping options.
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