MR Grade Electrolytic Tin Plate Sheets & Coils with Matte Finish for Can Manufacturing
Product Description
Electrolytic Tin Plate (ETP), commonly designated as SPTE, is a premium cold-rolled steel substrate electrolytically coated with a fine layer of tin. This specific product line utilizes high-purity MR grade steel, renowned for its excellent formability and consistent quality, making it ideal for demanding metal packaging. The material is further enhanced with a Matte Finish surface, which provides a uniform, non-reflective aesthetic and superior paint or ink adhesion. Available in critical tempers like T4CA and T5CA, this tinplate is engineered for deep-drawing processes required to produce aerosol cans, food cans (for tuna, sardines, vegetables), paint containers, and various ends. Offered in both coil and sheet formats, it serves as a versatile and reliable foundation for high-speed can-making lines.
Features & Characteristics
Premium MR Steel Base: Manufactured from low-carbon MR grade steel, ensuring excellent purity, weldability, and consistent mechanical properties for superior formability.
Functional Matte Finish: Provides a smooth, low-glare surface that enhances coating adhesion and reduces light reflection, ideal for high-quality printed packaging.
Optimized Temper Grades: Specifically supplied in T4CA and T5CA tempers, offering the perfect balance between ductility for deep drawing and the necessary strength for container rigidity.
Superior Corrosion Defense: The combination of the tin coating and passivation treatment offers robust resistance to oxidation, rust, and internal corrosion from acidic or alkaline contents.
Manufacturing Flexibility: Suitable for both soldering and modern welding techniques, and can be supplied with custom internal/external lacquers or pre-printed to specification.
Key Advantages
Choosing our MR grade Electrolytic Tin Plate delivers tangible production benefits. Its exceptional consistency minimizes breakage and tool wear during stamping and drawing, increasing line efficiency. The matte finish reduces coating costs and ensures brilliant print results for standout shelf appeal. Furthermore, its compliance with major international standards (JIS, DIN, ASTM) guarantees global acceptability, while the option for custom packaging (rust-proof paper, metal angles) ensures pristine material arrival.
Technical Parameters Table
| Parameter | Specification Details |
|---|
| Material Grade | MR, SPCC, Prime Steel |
| Available Form | Coils (ID 406/508mm) or Sheets |
| Thickness Range | 0.15mm – 0.47mm |
| Standard Width | 600mm – 1020mm |
| Temper Grade | T1, T4CA, T5CA, DR8, etc. |
| Tin Coating Weight | 1.1/1.1 to 11.2/11.2 g/m² (Equal/Differential) |
| Surface Finish | Matte, Bright, Stone, Silver |
| Hardness Range | TS230-TS290, TH415-TH620 |
| Core Standards | JIS G3303, DIN EN 10203, ASTM, GB/T 2520 |
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of MR steel over other grades for tinplate?
A1: MR (Miller Rated) steel is specifically designed for high corrosion resistance and exceptional drawability. It contains controlled residual elements, making it the preferred, cost-effective choice for most food packaging applications where superior forming and welding are required.
Q2: Why choose a matte finish over a bright finish?
A2: A matte finish reduces surface glare, provides a sophisticated appearance, and creates a microscopically rougher surface profile. This significantly improves the adhesion and bonding strength of subsequent protective lacquers and decorative inks, reducing the risk of coating delamination.
Q3: What does the "CA" in T4CA/T5CA signify?
A3: "CA" stands for Continuous Annealing. This modern annealing process results in a more uniform and consistent temper across the entire coil compared to batch annealing, leading to better formability and fewer production issues in high-speed can manufacturing.
Q4: Can you apply internal lacquer or external printing in-house?
A4: Yes. We offer comprehensive pre-treatment services. The tinplate can be supplied with custom internal protective lacquers (epoxy, phenolic) for specific food products and with high-definition external offset printing based on your provided artwork (CMYK/PMS).
Q5: What is your packaging standard for export?
A5: We use seaworthy, heavy-duty packaging to prevent damage. This typically includes VCI rust-proof paper, plastic film wrap, reinforced metal corners, steel strapping, and secure mounting on wooden pallets, ensuring the material arrives in perfect condition.
| TINPLATE | TINPLATE Tinplate is a thin steel coated with tin. Tinplate is characterized by its beautiful metallic luster as well as excellent properties in corrosion resistance, solderability and weldability.  |
| TIN FREE STEEL( TFS) | TIN FREE STEEL( TFS) TFS is electrolytic chromium coated steel, which has a superior paintability and paint adhesion. Since TFS has an excellent sulfide stain resistance, it can be applied to food usage with inside coating.  |
PRINTING TINPLATE SHOW
PRINTING WORKSHOP NO.7 Show
