Description

Electrolytic Tinplate (ETP) Coil represents a highly specialized, composite steel material that perfectly integrates the robust structural strength and formability of premium mild steel with the exceptional corrosion resistance, solderability, and non-toxic surface qualities of pure tin.

Sourced by Metal Mart from leading international steel mills conforming to rigorous global standards (such as JIS G3303 and ASTM A623), our ETP Coils undergo a meticulous electro-tinning operation. Cold-reduced low-carbon strip steel is chemically cleaned and passed through an electrolytic bath where tin ions are uniformly deposited on both surfaces. A subsequent high-frequency induction heating process briefly melts the tin, forming a highly lustrous, self-protecting tin-iron alloy layer that protects packaged contents from chemical reactions, light, oxygen, and atmospheric moisture.

Key Features:

• Certified Non-Toxic Food Safety: Provides a completely safe, hygienic, and impermeable barrier that preserves product freshness, flavor, and shelf-life without chemical leaching.

• Flawless Lacquer Adhesion & Printability: Features an engineered surface finish that accommodates high-resolution lithographic printing, brand labeling, and protective inner lacquers.

• Exceptional Deep-Drawing Formability: Available in a diverse range of mechanical tempers, allowing the metal to be easily stamped, bent, and drawn into complex 2-piece or 3-piece can shapes without fracturing.

• Superior Joining Capabilities: Highly responsive to high-speed industrial welding and soldering, ensuring hermetically sealed seams essential for pressurized or vacuum-packed containers.

Technical Specifications:

• Material Designation: Electrolytic Tinplate (ETP)

• Manufacturing Standards: JIS G3303 / ASTM A623 / EN 10202

• Thickness Range: High-precision gauges ranging from 0.14 mm to 0.50 mm.

• Tin Coating Weight Options: Flexible nominal weights (e.g., 1.1/1.1, 2.8/2.8, 5.6/5.6 $g/m^2$) available in equally or differentially coated surfaces to optimize internal and external protection.

• Temper Classifications: Available in Single Reduced (SR) tempers (T1 through T5) and Double Reduced (DR) high-strength tempers (DR7 to DR9) depending on structural stiffness requirements.

• Sourcing Network: Directly imported from accredited mills in Japan, South Korea, and China with full Mill Test Certificates (MTC).

Common Applications:

• Food & Beverage Packaging: Two-piece and three-piece cans for fruits, vegetables, seafood, milk powder, processed meats, and carbonated carbon beverages.

• Closures & Lids: Twist-off caps, crown corks, aerosol valve caps, and easy-open ends (EOE) for glass and metal containers.

• Chemical & Industrial Packaging: Containers for paints, lubricating oils, solvents, aerosol spray cans, and 1–18 liter chemical drums.

• Electrical Components: Battery casings, internal electronic shielding, cable wrapping materials, and automotive oil filters.

Through Metal Mart’s reliable import pipelines, specialized Trade Brokerage, and dedicated Letter of Credit (LC) facilitation, we streamline bulk procurement and port clearance to supply your production line with the highest tier of international ETP materials.