Differential Thickness Tinplate Steel

OVERVIEW

Overview of Differential Thickness Tinplate Steel

Differential Thickness Tinplate Steel is a cold-rolled electroplated tinplate with different tin coating amounts on both sides. This type of plate forms a differentiated coating thickness on both sides of the steel plate by controlling process parameters during production, which can optimize material performance and cost in a targeted manner to meet different material performance requirements in specific scenarios.

Product Parameters

Product Name

Differential Thickness Tinplate

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


Core characteristics of Differential Thickness Tinplate

1. Asymmetric coating design: By adjusting the electroplating process, the weight of the tin layer on both sides of the steel plate is different, and the coating ratio can be flexibly customized according to the actual use scenario.

2. Performance adaptability: The differential thickness coating design can take into account the corrosion resistance, processability and cost control of the material. For example, in the field of food packaging, the coating thickness on the side in contact with the content can be optimized to improve protection, while the other side can be appropriately thinned to reduce costs.

3. Process complexity: Production requires precise control of parameters such as electroplating current and time to ensure that the difference in thickness of the coating on both sides is stable, and high requirements are placed on production equipment and technology


Key links in the production process of tinplate

1. Cold rolling and heat treatment: It is necessary to eliminate work hardening through large-scale rolling deformation, and regulate the performance of the plate through continuous annealing process (such as 780℃+220mm/min continuous annealing process).

2. Surface treatment: Including processes such as electroplating tin or lead-tin alloy plating. The difference in thickness of the tinplate on both sides needs to be precisely controlled in this link.

3. Quality inspection: The first-level tinplate needs to pass online inspection to ensure that there are no defects such as penetrating pinholes and excessive thickness deviation. The second-level tinplate allows small non-fatal defects.


Application areas of tinplate

Tinplate is widely used in many industries due to its excellent corrosion resistance, processability and coating properties:

1. Food packaging: such as canned containers, which must meet hygiene standards and anti-corrosion requirements.

2. Building decoration: used for roof and wall decoration, etc., taking advantage of its atmospheric corrosion resistance.

3. Automobiles and machinery: as a component material, it is necessary to take into account both formability and coating adhesion.

4. Hardware kitchenware: improve aesthetics and durability through painting and printing


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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