T1 Tin Free Steel TFS ECCS Sheet, Single Reduced Low Carbon Chromium Coated Steel Sheet

T1 Tin Free Steel TFS ECCS Sheet, Single Reduced Low Carbon Chromium Coated Steel Sheet

  1. Excellent deep drawing performance for complex forming
  2. Outstanding paint adhesion & sulfur discoloration resistance
  3. Low carbon substrate, stable ductility
  4. Cost-saving alternative to electrolytic tinplate
  5. Compatible with printing and internal lacquer coating
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Product Overview

T1 Tin Free Steel (TFS/ECCS) Sheet is single reduced grade chromium-coated steel sheet, produced per ASTM A623/A657, JIS G3315, EN 10202 standards. It adopts low-carbon steel base with double-sided chromium + chromium oxide coating. T1 is the softest SR temper grade, offering maximum ductility and formability. It can be punched, curled, seamed and welded smoothly. Widely used for deep drawn packaging components, crown caps, cosmetic packaging containers, special food can ends, battery casings. The chromium coating weight can be customized from 50-150mg/m², anti-corrosion and prevents sulfur staining for food contact applications.

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
T1 0.12 0.60 0.020 0.050 0.02 46-52 30%

Detailed Technical Specifications

Item Specification
Product T1 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 T1 (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 Deep drawn packaging parts, crown caps, cosmetic containers, battery casings, food can ends
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 T1 TFS / ECCS Sheet Electrolytic Tinplate (ETP) T1
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 T1 SR T1
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 Deep drawn packaging, crown caps, cosmetic packaging, battery casings Deep drawn food cans, milk powder cans, aerosol can components
Material Positioning Cost-oriented tin-free deep draw packaging material Tin-coated deep draw food packaging material

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FAQs

T1 is the softest single reduced temper of tin free steel, best for deep drawing and complex forming work.

Yes, its chromium oxide surface has great paint adhesion and supports offset printing and internal lacquer coating.

HR30T 46-52, with minimum 30% elongation.

Yes, it meets international food contact standards, suitable for food packaging ends and caps.

MOQ is 5 tons, custom coating weight and sizes available.

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  • ISO, SGS, TÜV, WTRUST, Lloyd’s Register, and DNV certifications

  • Customizable sizes, grades, and surface finishes

  • Full material traceability and inspection reports

  • Responsive support and fast global delivery


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