T5 Tin Free Steel TFS ECCS Sheet, High Hardness Single Reduced Chromium Coated Steel Sheet

T5 Tin Free Steel TFS ECCS Sheet, High Hardness Single Reduced Chromium Coated Steel Sheet

  1. High rigidity and good shape retention
  2. Anti-sulfur discoloration for food packaging
  3. High coating adhesion for printing and lacquer
  4. Less deformation under pressure
  5. Economic substitute for tinplate rigid packaging
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Product Overview

T5 Tin Free Steel (TFS/ECCS) Sheet is high hardness single reduced grade chromium coated steel sheet, manufactured under ASTM A623/A657, JIS G3315, EN10202. T5 is the hardest temper in SR series. Low-carbon steel substrate is coated with double-sided chromium and chromium oxide layer. It features high stiffness, good shape retention, less springback during stamping. Suitable for rigid packaging parts, heavy-duty crown caps, rigid container ends. It can be stamped, curled and seamed. Surface supports printing and internal coating. Chromium coating weight can be customized between 50-150mg/m², stable anti-corrosion performance for food and chemical packaging.

Tin Free Steel (TFS / ECCS) Sheet

Chemical & Mechanical Property Snapshot

Grade C (Max, %) Mn (Max, %) P (Max, %) S (Max, %) Si (Max, %) HR30T Hardness Min Elongation
T5 0.12 0.60 0.020 0.050 0.02 62-68 14%

Detailed Technical Specifications

Item Specification
Product T5 Tin Free Steel (TFS / ECCS) Sheet
Production Technology Electrolytic chromium coating
Applicable Standards ASTM A623/A657, JIS G3315, EN 10202
Steel Substrate Low-carbon steel
Temper Grade T5 (Single Reduced SR)
Chromium Coating Weight 50-150 mg/m²
Coating Structure Chromium + chromium oxide
Processing Punching, edge curling, seaming, welding
Surface Treatment Compatibility Printing, organic lacquer / internal coating
Typical Applications Rigid packaging parts, heavy crown caps, rigid container ends, battery casings
MOQ 5 Ton
Payment Terms T/T, L/C at Sight
Delivery Time 15-25 working days
Package Standard seaworthy wooden pallet packaging

Product Comparison Table

Feature T5 TFS / ECCS Sheet Electrolytic Tinplate (ETP) T5
Protective Layer Chromium + Chromium Oxide Electrolytic Tin Coating
Tin Layer No Tin Coating Pure Tin Coating
Main Standards ASTM A623/A657, JIS G3315, EN 10202 ASTM A623, GB/T 2520, JIS G3303
Temper Grade SR T5 SR T5
Coating Weight 50-150 mg/m² 1.1 / 1.1–8.4 / 11.2 g/m²
Key Coating Features Strong adhesion, sulfur resistance and corrosion protection Protective tin barrier, excellent food-contact packaging performance
Processing Punching, curling, seaming, welding Stamping, curling, welding, sealing
Typical Uses Heavy crown caps, rigid packaging ends, battery casings Rigid can ends, heavy-duty metal packaging
Material Positioning High rigidity tin-free rigid packaging steel Tin-coated high rigidity rigid packaging steel

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FAQs

T5 TFS is the hardest single reduced grade, used for rigid packaging parts, heavy crown caps and stiff container ends.

HR30T 62-68, minimum elongation 14%.

Yes, T5 has high rigidity and excellent shape retention after stamping.

Yes, the chromium oxide coating provides good paint adhesion for printing and internal lacquer.

Yes, we can cut custom dimensions, coating weight adjustable.

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