Electrolytic Tinplate (ETP) Manufacturer & Supplier in China
Sino East Steel Group supplies prime quality electrolytic tinplate (ETP) and tin-free steel (TFS / ECCS) in coils and cut sheets for food cans, aerosol valves, crown caps, paint pails, and battery jackets worldwide.
Real Production, Warehouse & Seaworthy Export Packaging
Why Procure Direct from Sino East Steel Group
💰 Direct Mill Pricing
Eliminate intermediate trading markups with transparent factory FOB/CIF pricing and flexible payment terms for volume contracts.
🛡️ Certified EN 10204 3.1 MTC
Full heat-number traceability, guaranteed mechanical/chemical tolerances, and complete third-party inspection (SGS/BV) compliance.
🚢 1x20GP Mixed Cargo Support
Consolidate various sizes, specifications, and hardware fasteners into single 25-ton container loads to minimize inventory overhead.
Manufacturing Specifications & Technical Range
| Standards | ASTM A623 / A624 / A626, EN 10202, JIS G3303, GB/T 2520 |
|---|---|
| Thickness Range | 0.14 mm – 0.50 mm (Tolerance: ±0.005 mm) |
| Width Range | 600 mm – 1,050 mm | Cut Lengths: 500 mm – 1,200 mm |
| Temper Grades | Single Reduced: T1, T2, T3, T4, T5 (BA & CA) | Double Reduced: DR7, DR8, DR9 |
| Tin Coating Weight | Equally coated & Differentially coated: 1.1/1.1, 2.8/2.8, 5.6/5.6, 8.4/8.4, 11.2/11.2 g/m² |
Ready to Procure Direct from Tianjin Steel Manufacturer?
Contact our senior sales engineers with your required size, grade, and destination port. We provide official CIF quotations and MTC samples within 15 minutes.
1. Prime Electrolytic Tinplate (ETP / TFS) Specification Matrix (ASTM A623 / ASTM A624 / EN 10202)
Sino East Steel is a global direct prime electrolytic tinplate (ETP / SPTE) and tin-free steel (TFS / ECCS) manufacturer. Designed for 2-piece/3-piece food cans, beverage aerosol cans, twist-off crown caps, chemical drums, and electronic shielding. Complies strictly with ASTM A623, ASTM A624, EN 10202, and JIS G3303 food safety standards with full FDA and EU 1935/2004 compliance certificates.
| Base Steel Type | Nominal Thickness (mm) | Temper Grade (Hardness HR30T) | Tin Coating Mass (Equally/Differentially) | Surface Finish & Passivation | Target Packaging Application |
|---|---|---|---|---|---|
| MR (Medium Residual) | 0.15mm – 0.50mm (±0.005mm) | T-1, T-2, T-2.5 (Soft Deep Drawing) | 1.1/1.1, 2.8/2.8, 2.8/5.6 g/m² | Bright (B) / Stone (R) / DOS Oil | Deep Drawn Cans, Fruit & Fish Cans |
| MR / SPTE Food Grade | 0.18mm – 0.35mm (±0.005mm) | T-3, T-4 (General Forming) | 2.8/2.8, 5.6/5.6, 8.4/8.4 g/m² | Bright / Matte / Chromium 311 | 3-Piece Food Cans, Aerosol Can Bodies |
| L / D Grade (Low Residual) | 0.14mm – 0.30mm (±0.005mm) | T-5 (High Rigidity Buckle Resistance) | 5.6/5.6, 11.2/11.2 g/m² | Stone / Silver / Passivated | Acidic Foods (Tomato Paste, Citrus Cans) |
| DR (Double Reduced) ETP | 0.12mm – 0.22mm (Ultra Thin) | DR-7, DR-8, DR-9 (High Strength) | 1.1/1.1, 2.0/2.0, 2.8/2.8 g/m² | Stone / ATBC Oil / Epoxy Coated | Easy-Open Ends (EOE), Crown Bottle Caps |
| TFS (Tin-Free Steel / ECCS) | 0.15mm – 0.45mm (±0.005mm) | T-2.5 to T-4, DR-8 | Cr Metal: 50-140mg/m², Cr Ox: 7-35mg/m² | Lacquered / Printed / Protective Film | Twist-Off Caps, 18L Paint Drums, Battery Casings |
2. Buyer Guide: ETP (Electrolytic Tinplate) vs. TFS (Tin Free Steel / ECCS) Selection
Electrolytic Tinplate (ETP) features pure tin plating providing excellent solderability, high corrosion resistance without mandatory lacquering, and bright metallic luster—ideal for processed food cans and aerosol packaging. Tin-Free Steel (TFS) replaces tin with an ultra-thin electrolytic chromium/chromium oxide layer, delivering superior lacquer adhesion, high heat resistance, and cost efficiency for bottle crown caps, paint pails, and twist-off closures.
3. Frequently Asked Questions by Global Tinplate Importers & Can Makers
Type MR (Medium Residual) or Type L steel with differential tin coating (e.g., 5.6/2.8 g/m² or 8.4/2.8 g/m²) is strictly recommended. The heavier coated interior prevents iron pickup and acid corrosion, while gold food-grade lacquer (epoxy phenolic or organosol) guarantees zero flavor contamination and 3-year shelf stability.
Sino East Steel packs prime tinplate sheets and coils in heavy-duty export packaging: double-layer waterproof VCI anti-rust paper, corrugated steel wrapping, corner metal protectors, and fumigated solid wooden pallets bound with high-tensile steel straps. Guaranteed 0% rust and zero edge damage during tropical ocean transit.
Dedicated Can Making & Closure Steel Landing Hubs
Looking for custom-slit coils, temper-specific sheets, or BPA-NI lacquered tinplate for specialized canning lines? Explore our tailored application portals:
🍾 Bottle Caps & Closures
ETP & TFS/ECCS for beer crown corks, twist-off lug caps, and deep-drawn jar covers (T3/T4/DR7.5).
🥫 Easy Open Ends (EOE) & Lids
Ultra-thin DR8/T4/T5 tinplate sheets (0.15-0.22mm) for Full-Aperture and sanitary can bottom covers.
🛢️ Can Bodies & Aerosol
High-speed resistance welded 3-piece cans, aerosol spray cans, and 2-piece DRD food can body sheets.
1. International Prime Tinplate Standards & Global Temper Equivalent Matrix (ETP vs. SPTE vs. TFS)
Sino East Steel supplies prime Electrolytic Tinplate (ETP / SPTE) and Tin-Free Steel (TFS / ECCS) coils and cut sheets strictly adhering to international manufacturing standards including ASTM A623M / A624 (USA), JIS G3303 (Japan), and EN 10202 (Europe). Full chemical traceability and EN 10204 3.1 Mill Test Certificates (MTC) provided.
| Temper Designation | HR30T Target Hardness | Annealing Type | Yield Strength (MPa) | Typical Can Making & Closure Applications |
|---|---|---|---|---|
| T1 (TH50 / TS230) | 49 ± 3 | Batch (BA) | 230 ± 40 | Deep-drawn components, complex fittings, nozzles |
| T2 (TH52 / TS245) | 52 ± 3 | Batch (BA) | 245 ± 40 | Moderate drawing, shallow closures, decorative cans |
| T3 (TH55 / TS260) | 55 ± 3 | BA / CA | 260 ± 40 | General line can bodies, twist-off lug caps, ring lids |
| T4 (TH58 / TS275) | 58 ± 3 | Continuous (CA) | 275 ± 40 | Beer crown corks, aerosol tops/bottoms, 3-piece cans |
| T5 (TH61 / TS300) | 61 ± 3 | Continuous (CA) | 300 ± 40 | High-pressure can bodies, sanitary can ends |
| DR8 (TH73 / DR550) | 73 ± 3 | Double Reduced | 550 ± 50 | Ultra-thin Easy Open Ends (EOE), lightweight can bodies |
| DR9 (TH77 / DR620) | 77 ± 3 | Double Reduced | 620 ± 50 | Round & rectangular sanitary can bottom covers |
Precision Slitting & Scroll-Cut Processing Center
To maximize stamping efficiency and reduce metal scrap for packaging converters, we operate multi-head precision slitting lines (width tolerance ±0.1mm) and automatic CNC scroll-cutting shearers, saving up to 5% to 8% raw material on bottle cap and EOE production lines.
Tin Coating Lines and Food-Grade Quality Control
Electrolytic tinplate is produced on our electroplating lines in MR and L grades, with tin coating weights from 1.1 g/m2 to 11.2 g/m2 per side applied by continuous electrolytic deposition. The plating line controls coating weight across the full width of the strip, which is what can makers depend on for consistent soldering and corrosion performance.
Quality control on the tin line covers coating weight per side, alloy layer formation, surface finish and temper grade. Every coil is tested before release, and the results are summarized in the certificate that accompanies the shipment - the same documentation food packers and can makers in the GCC request from their suppliers.
Supply Options for Packagers
- Coil or sheet form - master coils, slit coils, or cut sheets from 0.15 mm to 0.50 mm
- Single or double reduced - temper grades matched to drawability requirements
- Food contact compliance - certificates confirming suitability for food and beverage packaging
- Edge trimming - clean, burr-free edges for high-speed can lines
For regional packers, we hold standard MR-grade stocks in popular gauges, which shortens lead time for repeat orders.