Color Coated Tin Roofing Sheet
Electrolytic tinplate sheet with a printed passivated surface for roofing and panels
Specifications
Tinplate Coil/Strip/Sheet
Coated Tinplate Coil 600 to 1050mm Width
Full width electrolytic tinplate coil wound for continuous can and closure lines
Coated tinplate coil is cold rolled low carbon steel plated with commercial pure tin on both faces, passivated, oiled and wound for feeding straight onto a coil fed line. High volume can makers, coil coating lines and closure plants specify it in SPCC, MR or SPCH against GB/T 2520-2008, JIS G3303-2008, DIN EN 10203-1991 or ASTM A623M-2011. Ordering in coil rather than sheet keeps the line running between reel changes instead of stopping to reload stacks, and fixing the coil geometry to your reel removes the mandrel adapters and tail scrap that come with mixed inbound coils. Width runs 600-1050mm inside a 0-3mm tolerance, thickness 0.15-0.50mm inside plus or minus 0.01 mm, on a 420/508mm inside diameter at 1-5 MT per coil.
- Product Name — Coated Tinplate Coil
- Also Known As — SPTE ETP electroplated tin steel coil
- Material — SPCC MR SPCH
- Thickness — 0.15-0.50mm
- Thickness Tolerance — Plus or minus 0.01 mm
Why It Is Specified
Key Benefits of Coated Tinplate Coil
Coil Geometry Fixed to Your Reel
Inside diameter is supplied at 420 or 508mm and coil weight is set between 1 and 5 MT. Matching the reel and the crane capacity you already have avoids adapters and half used coils in the rack.
Width Held Within a 0-3mm Tolerance
Coils run 600-1050mm wide with a width tolerance of 0-3mm. Blank layout across the strip stays predictable so the nesting you costed is the nesting you get.
Thickness Consistent Along the Full Coil
Gauge is held at 0.15-0.50mm within plus or minus 0.01 mm from head to tail, which keeps press feeding and wall thickness steady through an entire reel.
Tin Coating Set for the Contents
Both faces are plated between 1.1 and 11.2 g/m2. A single coil program can be split across coating weights so food, chemical and dry goods packs each get what they need.
Full Temper Range in Coil Form
T2, T2.5, T3, T3.5, T4 and T5 plus the double reduced DR7, DR7M and DR8 are available in BA or CA condition, so body stock and end stock can come from the same supply.
Surface Protected for the Sea Leg
Bright, stone or silver finish with passivation treatment and a DOS oil film keeps the tin surface clean through shipment and storage before the coating line.
Problems It Solves
What This Material Removes From Your Process
Line Stops To Reload Sheet Stacks
Sheet fed production loses time at every stack change. A 1-5 MT coil on the reel keeps the press running and cuts the number of handling operations per tonne.
Coils That Do Not Fit the Mandrel
Mixed inbound coils force adapters, extra rigging and sometimes rewinding. Specifying 420 or 508mm inside diameter on every coil takes that step out.
Nesting Changing With Coil Width
When width wanders the blank layout across the strip has to be re-cut. A 0-3mm width tolerance on the 600-1050mm range keeps the layout fixed.
Crane and Rack Capacity Being Exceeded
Coils heavier than the house crane force double handling at goods in. Coil weight can be set anywhere between 1 and 5 MT to match the equipment on your floor.
Substrate Arriving Marked Before Coating
Surface staining is rejected at the coating line and the whole coil is at risk. Passivation treatment plus DOS oil protects the tin face through the ocean leg.
Application Scenarios
Where It Is Used
Coil Fed Can Body Lines
Continuous body blank production where the reel runs for a full shift and stopping to reload sheet stacks is the main lost time.
Coil Coating and Printing Lines
Lacquering and printing plants that coat in coil form before decoiling or shearing for their own downstream converters.
Can End and Closure Stamping
High speed end shell and closure presses fed from coil where blank pitch and gauge control decide the scrap rate.
Service Centers decoiling for Converters
decoiling operations buying 600-1050mm coil and reselling narrow strip and sheet to regional packaging workshops.
Industrial Pail and Drum Component Lines
Paint, adhesive and chemical container plants blanking bodies, rings and closures for containers that meet the product directly.
Who It Is For
Buyers Who Specify This Product
- Can plant buyers ordering body and end stock for coil fed press lines
- Coil coating and lithography plants buying substrate for lacquering before decoiling
- Closure and crown plants buying coil to slit in house for their own die widths
- Steel service centers buying 600-1050mm coil to slit and resell as strip and sheet
- Industrial packaging manufacturers buying coil for pail and lever lid components
- Supply chain managers standardizing coil weight and inside diameter across a program
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 | Coated Tinplate Coil |
|---|---|
| Also Known As | SPTE ETP electroplated tin steel coil |
| Material | SPCC MR SPCH |
| Thickness | 0.15-0.50mm |
| Thickness Tolerance | Plus or minus 0.01 mm |
| Width | 600-1050mm |
| Width Tolerance | 0-3mm |
| Coil Inside Diameter | 420/508mm |
| Coil Weight | 1-5 MT |
| Tin Coating | 1.1-11.2 g/m2 |
| Temper | T2 T2.5 T3 T3.5 T4 T5 DR7 DR7M DR8 |
| Annealing | CA continuous annealing or BA batch annealing |
| 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 |
Technical Features
- Width 600-1050mm with a 0-3mm width tolerance
- Gauge 0.15-0.50mm held to plus or minus 0.01 mm
- Coil inside diameter 420/508mm
- Coil weight 1-5 MT
- Tin coating 1.1-11.2 g/m2 on both faces
- Material SPCC MR and SPCH cold rolled low carbon steel
- Temper T2 T2.5 T3 T3.5 T4 T5 DR7 DR7M and DR8 in BA or CA condition
- Passivated bright stone or silver surface carrying DOS oil
Materials
- SPCC MR or SPCH cold rolled low carbon steel base
- Electroplated commercial pure tin layer at 1.1-11.2 g/m2 per face
- Passivation film over the tin layer
- DOS oil film applied before recoiling
Certification
- ISO9001
- BV
- SGS
- RoHS
Manufacturing
How It Is Made and Processed
Base gauge reached by cold rolling low carbon steel
Annealing by the CA or BA route to suit the ordered temper
Double reduction applied where DR7 DR7M or DR8 is ordered
Tin plating of both faces to the coating weight on the order
Passivation treatment and DOS oiling
Trimming to a 600-1050mm width inside the 0-3mm tolerance
Recoiling on 420 or 508mm inside diameter to 1-5 MT coil weight
Edge protection wrapping and export packing
Quality Control
Checks Before It Ships
- Width measured against the 600-1050mm order inside the 0-3mm tolerance
- Thickness traversed along the coil within plus or minus 0.01 mm
- Coating weight checked against the ordered value in the 1.1-11.2 g/m2 range
- Coil inside diameter and coil weight confirmed against 420/508mm and 1-5 MT
- Surface inspected for passivation coverage and even oil film
- Edge and eye protection checked before the coil is strapped for loading
Customization
What We Can Change on Your Order
- Coil width ordered anywhere in the 600-1050mm range
- Coil inside diameter specified as 420 or 508mm to suit your reel
- Coil weight set between 1 and 5 MT to match crane and rack capacity
- Tin coating weight selected between 1.1 and 11.2 g/m2
- Temper and annealing route chosen from T2 to DR8 in BA or CA
- Certified against GB/T JIS DIN EN or ASTM as the market requires
Comparison
Coated Tinplate Coil Against the Alternatives
| Tinplate supplied as cut sheet | A 1-5 MT coil keeps a press line running between reel changes instead of stopping at every sheet stack, which is where coil fed plants recover their time. |
|---|---|
| Cold rolled black plate coil | The plated tin layer brings corrosion resistance and solderability that untreated cold rolled coil cannot offer for packaging duty. |
| Aluminium coil for packaging | The steel base is stiffer at the same gauge, so bodies and ends hold their shape under stacking load. |
| Mixed coil geometry from several mills | Fixing every coil at 420 or 508mm inside diameter and 1-5 MT means the same rigging and the same reel setup on every delivery. |
Use Guide
Specifying Handling and Welding Notes
- State the reel mandrel size first so coils are wound on 420 or 508mm inside diameter rather than adapted on arrival
- Set coil weight against your crane and decoiler limit rather than taking the heaviest coil offered
- Check the width tolerance against your blank nesting before approving the first coil of a program
- Store coils eye to the sky or eye to the wall as your racking dictates and keep them dry
- Allow for the DOS oil when setting up the coating line and degrease to the level that line expects
- Order body stock and end stock on the same temper program so the two do not drift apart between deliveries
Questions Buyers Ask
Coated Tinplate Coil FAQ
What coil width and width tolerance do you supply?
Coils run 600-1050mm wide with a width tolerance of 0-3mm. Give the blank layout you are nesting and we will confirm the best ordering width.
What inside diameter and coil weight can we specify?
Inside diameter is 420 or 508mm and coil weight can be set between 1 and 5 MT. Both should be fixed against your decoiler mandrel and crane capacity.
How tightly is thickness controlled along the coil?
Gauge is supplied between 0.15mm and 0.50mm and held within plus or minus 0.01 mm. That consistency is what keeps press feeding stable for a full reel.
Can we order different tin coating weights on one program?
Yes. Coating runs from 1.1 to 11.2 g/m2, so coils for food packs and coils for industrial packs can be split across weights on the same order.
Which temper is right for coil fed body stock?
T2 to T5 covers most drawn and formed body work while DR7, DR7M and DR8 are chosen where stiffness at low gauge matters. Tell us the wall thickness you are targeting.
Which standards can the coil be certified against?
JIS G3303-2008, ASTM A623M-2011, DIN EN 10203-1991 and GB/T 2520-2008 are all available. State the one your customer audits so the documents match at goods in.
How are coils protected for ocean shipment?
The tin surface carries passivation treatment and a DOS oil film, and coils are wrapped with edge and eye protection before strapping. Certification covers ISO9001, BV, SGS and RoHS.
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