Color Coated Tin Roofing Sheet
Electrolytic tinplate sheet with a printed passivated surface for roofing and panels
Specifications
Tinplate Coil/Strip/Sheet
Tinplate Strip cut to width from Stock
Stocked SPTE strip cut to width for short runs and repeat packaging programs
Tinplate strip is electroplated tin coated low carbon steel supplied in narrow width for blanking, forming and seaming work. Packaging workshops, tin box makers and component shops call it up in SPCC, MR or SPCH against GB/T 2520-2008, JIS G3303-2008, DIN EN 10203-1991 or ASTM A623M-2011. Because the material is carried as inventory rather than rolled to order, a buyer with a short run or a repeat top up is not held behind a mill rolling program for a few tonnes of narrow strip. Gauge stays between 0.15-0.50mm inside a plus or minus 0.01 mm tolerance across the T2 to DR8 temper range, in batch annealed or continuous annealed condition.
- Product Name — Tinplate Strip
- Also Known As — SPTE ETP tin coated steel strip
- Material — SPCC MR SPCH
- Thickness — 0.15-0.50mm
- Thickness Tolerance — Plus or minus 0.01 mm
Why It Is Specified
Key Benefits of Tinplate Strip
Held as Inventory for Repeat Top Ups
Strip is carried in stock and slit against the order, so a small replenishment does not have to wait behind a mill rolling campaign. That suits shops running the same die every month on modest volumes.
Three Base Materials on One Order
SPCC, MR and SPCH are all available. A workshop producing food tins and industrial components can draw both from a single delivery instead of managing two suppliers.
Temper Chosen Job by Job
T2, T2.5, T3, T3.5, T4 and T5 cover the softer forming work while DR7, DR7M and DR8 cover stiff thin gauge parts. Both ends of the range can be called off the same stock.
Gauge Held Within 0.01 mm
Thickness is supplied 0.15-0.50mm with a tolerance of plus or minus 0.01 mm, which keeps blanking clearance and forming behaviour the same between one delivery and the next.
Tin Coating Across the Full Range
Coating is available from 1.1 to 11.2 g/m2 on both faces, so light duty decorative parts and heavier duty food contact parts can be specified separately rather than averaged.
Problems It Solves
What This Material Removes From Your Process
Small Orders Stuck Behind a Mill Program
Narrow tinplate in modest tonnage rarely gets its own rolling slot. decoiling from carried inventory means a short run is a decoiling job rather than a mill campaign.
Material Drifting Between Deliveries
When a shop buys wherever stock appears, gauge and temper move and the die has to be reset. Holding one material, one temper and one tolerance band keeps the setup stable.
Buying Wide Coil To Get a Narrow Part
Ordering a wide coil for a narrow blank leaves trim in the yard and cash tied up. Strip slit to the finished width removes both.
Uncertainty Before a Die Is Proven
Committing volume before a tool is proven is a risk. Taking a small quantity from stock to run a first article lets the die be signed off before a larger call off.
Application Scenarios
Where It Is Used
Tin Box and Gift Packaging Workshops
Small batch decorative tins and hinged boxes where runs are short and the ability to reorder a familiar width quickly matters more than tonnage price.
Food Pack Component Production
Rings, collars and small end shells for food packaging where sealing, preservation and light exclusion are the reason metal was chosen.
Pharmaceutical and Health Product Tins
Closure and shell components for medicine tins that need a non-toxic corrosion resistant surface in contact with the pack.
Instrument and Hardware Enclosures
Formed shells and covers for instrument packaging and small hardware items where the strip is blanked, folded and seamed.
Industrial Container Fittings
Handles, ring bands and spout parts for paint, adhesive and chemical containers produced in repeating monthly batches.
Who It Is For
Buyers Who Specify This Product
- Tin box workshops buying small tonnages of a familiar strip width every month
- Packaging component shops buying strip for blanking and folding operations
- Food pack producers buying strip for rings collars and small end shells
- Hardware and instrument makers buying solderable strip for formed covers
- Trading companies covering a customer shortfall from stock rather than a mill order
- Maintenance and prototype buyers needing a few coils to prove a die before volume
Technical Data
Specifications and Technical Features
Values below come from the product data published by Shandong Tianyu Metal Products. Confirm the exact grade and size against your order.
| Product Name | Tinplate Strip |
|---|---|
| Also Known As | SPTE ETP tin coated steel strip |
| Material | SPCC MR SPCH |
| Thickness | 0.15-0.50mm |
| Thickness Tolerance | Plus or minus 0.01 mm |
| Width | Slit to requirement |
| Tin Coating | 1.1-11.2 g/m2 |
| Temper | T2 T2.5 T3 T3.5 T4 T5 DR7 DR7M DR8 |
| Annealing | BA or CA |
| Surface Treatment | Bright stone or silver finish with passivation treatment and DOS oil |
| Standards | GB/T 2520-2008 JIS G3303-2008 DIN EN 10203-1991 ASTM A623M-2011 |
| Availability | Held in inventory |
| Place of Origin | China |
Technical Features
- Material SPCC MR and SPCH electroplated tin coated steel
- Gauge from 0.15mm to 0.50mm inside plus or minus 0.01 mm
- Tin coating 1.1-11.2 g/m2 on both faces
- Temper T2 T2.5 T3 T3.5 T4 T5 DR7 DR7M and DR8
- BA batch annealed or CA continuous annealed condition
- Passivated bright stone or silver surface finish
- DOS oil applied as surface protection
- Slit to the ordered width from carried inventory
Materials
- SPCC MR or SPCH low carbon steel cold rolled base
- Commercial pure tin plated on both faces
- Passivation film over the tin coating
- DOS oil film for handling and storage
Certification
- ISO9001
- BV
- SGS
- RoHS
Manufacturing
How It Is Made and Processed
Cold rolling of the low carbon steel base
BA or CA annealing to the ordered temper
Double reduction where DR7 DR7M or DR8 is called for
Electrolytic tin plating on both faces
Passivation and DOS oiling
decoiling from stock coil to the ordered width
Recoiling strapping and packing for dispatch
Quality Control
Checks Before It Ships
- Stock coil identity checked against the ordered material and temper before decoiling
- Thickness confirmed inside the plus or minus 0.01 mm tolerance
- strip width and edge quality checked on the first and last coil of each job
- Tin coating weight verified against the 1.1-11.2 g/m2 order value
- Surface examined for passivation and oil coverage before strapping
Customization
What We Can Change on Your Order
- strip width and coil inner diameter set to your decoiler
- Material called from SPCC MR or SPCH depending on the part
- Temper selected across the T2 to DR8 range in BA or CA
- Tin coating weight ordered between 1.1 and 11.2 g/m2
- Repeat call off against a fixed width and temper specification
Comparison
Tinplate Strip Against the Alternatives
| Mill rolled to order strip | Stock material is slit against the order, so a small replenishment does not have to wait for a rolling slot to open. |
|---|---|
| Wide tinplate coil | Buying at the finished strip width avoids paying for and storing trim that a narrow blanking job never uses. |
| Galvanized steel strip | The tin surface is non-toxic and solderable and takes printing directly, which zinc coated strip is not specified for in packaging duty. |
| Cold rolled uncoated strip | Tinplate arrives with its corrosion protection already on both faces, so no separate coating step is needed before forming. |
Use Guide
Specifying Handling and Welding Notes
- Fix one material temper and coating weight for a repeating part so each delivery drops into the same die setup
- Quote the strip width and the inner diameter together because the decoiler needs both
- Take a small stock quantity to prove the tool before committing a larger call off
- Store coils dry and use them in the order received because DOS oil is short term protection
- Choose the double reduced tempers where a thinner gauge has to stay rigid in the finished part
- Confirm which standard the certificate should reference before the material leaves stock
Questions Buyers Ask
Tinplate Strip FAQ
Do you keep tinplate strip in stock or roll it to order?
Strip is carried as inventory and slit against the order. That is why small and repeat quantities can be handled without waiting for a mill rolling program.
What is the smallest gauge you can supply?
Thickness starts at 0.15mm and runs up to 0.50mm, held within plus or minus 0.01 mm. At the thin end the DR tempers are usually specified to keep the part rigid.
Can we order SPCC and SPCH on the same delivery?
Yes. SPCC, MR and SPCH are all available, so a workshop making both food packs and industrial parts can take them on one shipment.
Which annealing condition should we ask for?
BA is batch annealed and CA is continuous annealed. Tell us how the part is formed and we will confirm which route suits the blank and draw you are running.
Can you slit to a width we already run?
Yes. Give the width and the coil inner diameter your decoiler takes and the stock coil will be slit to match your existing setup.
What certification comes with a stock order?
ISO9001, BV, SGS and RoHS documentation covers the material, and the certificate can reference GB/T 2520-2008, JIS G3303-2008, DIN EN 10203-1991 or ASTM A623M-2011 as you require.
Can we take a trial quantity before a production order?
Yes. Taking a small quantity from stock to prove a die is a normal first step before a larger call off is agreed.
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Send the grade, thickness, width and quantity you need together with your destination port. A cutting list or drawing gets you a firmer number.