Electrolytic Tinplate Steel Coil ETP

OVERVIEW

Definition of Electrolytic Tinplate Coil (ETP) Coil

Electrolytic Tinplate Coil (ETP Coil), commonly known as electroplated tinplate coil or tinplate coil in Chinese, is a high value-added cold-rolled coated steel material with an extremely thin tin layer (common thickness is 1.1-15.1g/m²) plated on the surface of cold-rolled thin steel plate through an electrolytic process. Its English abbreviation is ETP or TP, and its core structure consists of a steel base, a tin-iron alloy layer, a tin layer, a passivation layer and an oil film.

Product Parameters

Product Name

Electrolytic Tinplate Coil (ETP)

Thickness

0.18mm-0.50mm

Width

260mm-980mm

Length

Support customization

Tin Coating

General: 2.8g or 5.6g, can be produced according to your needs

Substrate Type

MR / SPCC / L / D

Reference Standard

GB/T 2520, JIS G3303, JIS G3315, DIN EN 10202, DIN EN 10203

Surface State of Tinplate

Surface State

Features

Light Surface

Electroplated tin smooth raw material strip after melting treatment to obtain the glaze,Smooth surface with very fine grindstone pattern

Stonetextured Surface

Electroplating tin raw material with the glaze obtained after melting treatment,Grindstone pattern with certain direction

Silvercolor Surface

Electroplating tin raw material with the glazed surface obtained after melting treatment, the surface is rough and dull

Mattless Surface

The surface of the substrate is rough and dull, and the tin plating layer is not soft melting

Substrate Type

Substrate Type

Introduction

MR

The most general steel, steelmaking impurity residue less, excellent mechanical properties and corrosion resistance

L

Used for the production of acidic contents (oranges, yellow peaches, pineapples, etc.), and the inner surface of the food cans for iron high corrosion resistance tinplate substrate steel, such tinplate is often calledKPlate

D

Used to produce two pieces of high-processing tin plate substrate steel, such tin plate is often called.DIMaterial

SPCC

Chinese characteristics, using ordinary hot rollingSPHCProduces, usually used for miscellaneous tank purposes.

Coating Weight

Classification

Representation of 

Tin Coating Weight

Tin Plating Nominal

 Weight (g/m2)

Minimum Average 

Tin Plating Weight (g/m2)

Equal Tin Plating (E)

1.1/1.1

1.1/1.1

1.8

2.2/2.2

2.2/2.2

4.0

2.8/2.8

2.8/2.8

5.0

5.6/5.6

5.6/5.6

10.5

Differentiated Tin Plating (D/A)

2.2/1.1

2.2/1.1

2.0/0.9

2.8/1.1

2.8/1.1

2.25/0.9

5.6/1.1

5.6/1.1

5.05/0.9

2.8/2.2

2.8/2.2

2.25/2.0

5.6/2.2

5.6/2.2

5.05/2.0

5.6/2.8

5.6/2.8

5.05/2.25

Chemical Composition

No.

C

Si

Mn

S

P

Cu

Ni

Cr

Mo

D

0.12

0.03

0.6

0.05

0.02

0.2

0.15

0.1

0.05

L

0.13

0.03

0.6

0.05

0.15

0.03

0.04

0.06

0.05

MR

0.13

0.03

0.6

0.05

0.2

0.2

0.2

0.1

0.05

Mechanical Properties & Applications

Standard Name

Nominal Hardness HR30TS

Strong Yield MPA

Scope of Application

T-1

49

230 /-50

Drawing requirements, drawn ironing cans, nozzles, nozzles, closures

T-2

53

245 /-50

Ring and plug, dome, closure, shallow pull and special tank parts

T-2.5

55

260 /-50

Battery cell, small can cover and body

T-3

57

275 /-50

Cans and cans, large diameter caps, crown caps

T-3.5

59

290 /-50

Can body, closure and crown lid

T-4

61

340 /-50

Can body, closure and crown lid

T-5

65

480 /-50

Cans and cans

Key Technical Parameters and Specifications of ETP Coil

1. Thickness Range: Common product thickness is 0.13-0.7mm, and the specific range provided by different suppliers is slightly different, such as 0.13-0.50mm or 0.14-0.7mm.

2. Tin plating amount: It is expressed as a combination of double-sided tin plating amounts. The mainstream specifications include 2.8/2.8, 5.6/5.6, and 2.8/5.6 (unit: g/m²). Some products are marked as asymmetric combinations such as 5.6/2.8.

3. Surface treatment: Provide a variety of surface forms, such as rough surface (Stone), bright surface (Bright), gold painted surface (gold lacquered), etc., to meet different appearance requirements

4. Processing performance: Support bending (Bending), welding (Welding), cutting (Cutting) and other processing technologies, suitable for canning, bottle caps, can bodies and other forming requirements


Production of ETP steel coils

Production process: mainly includes steelmaking, continuous casting, hot rolling, pickling, cold rolling, annealing, leveling, electroplating tin, passivation, cleaning, oiling, packaging and other links, among which annealing methods are divided into continuous annealing (CA) and hood annealing (BA)


Classification standards of ETP steel coils

1. According to the rolling process: divided into primary cold rolling (SR, thickness 0.17-0.5mm) and secondary cold rolling (DR, thickness 0.12-0.36mm), DR products have significant cost advantages because they are thinner and stronger.

2. By substrate type: including general steel (MR), high corrosion resistant steel (L, for acidic content packaging), high processability steel (D, for two-piece pull cans) and ordinary steel (SPCC, for miscellaneous cans).

3. By international standards: the mainstream implementation of Japanese standard JIS 3303 (tinning and substrate), European standard EN 10202, American standard is less used


Application areas and market characteristics of ETP steel coils

Main uses: The core application is the packaging industry, such as food cans, beverage cans, can lids, miscellaneous cans, etc., and a small amount is used in the electronics field. Its safety comes from the non-toxic nature of tin (not absorbed by the human body), and it is easy to recycle and meets environmental protection requirements


PRODUCT DISPLAY


CERTIFICATE

PACKING

CUSTOMER FEEDBACK

FAQ

Q:Can you send samples? 
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs. 
Q:What product information do I need to provide? 
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase. 
Q:About product prices? 
A:Prices vary from period to period due to cyclical changes in the price of raw materials. 
Q:What are the certifications for your products? 
A:We have ISO 9001, SGS, EWC and other certifications. 
Q:How long does your delivery time take? 
A:In general, our delivery time is within 7-45 days, and may be delayed if the demand is extremely large or special circumstances occur. 
Q:Can I go to your factory to visit? 
A:Of course, we welcome customers from all over the world to visit our factory. 
Q:Does the product have quality inspection before loading? 
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed. 
Q:How to pack the products? 
A:The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation. 

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