Name: Double Reduced Cold-Rolled Tinplate Steel
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Double Reduced Cold-Rolled Tinplate Steel

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OVERVIEW

Definition and Application of Double Reduced Cold-Rolled Tinplate Steel

Double Reduced Cold-Rolled Tinplate Steel, which can be called "double cold-rolled electrolytic tinplate" in Chinese, is a tin-plated steel plate that has been processed by a special cold rolling process. During its production process, it needs to go through two cold rolling processes to obtain a thinner thickness and better surface quality. It is widely used in food packaging, electronic components, medical devices and other fields with high requirements for material performance.

Product Parameters

Product Name	Double Reduced Cold-Rolled 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

Production process characteristics of Double Reduced Cold-Rolled Tinplate steel

1. Secondary cold rolling process: Through double cold reduction, the thickness of the steel plate is further reduced to improve the hardness, strength and surface finish of the material to meet the needs of precision processing

2. Electrolytic tin plating: Electrolytic tin plating is carried out after cold rolling to form a uniform tin coating, enhance the corrosion resistance and welding performance of the steel, and improve the surface aesthetics

International Standard Specifications for Double Reduced Cold-Rolled Tinplate Steel

The International Organization for Standardization (ISO) has formulated a series of standards for double cold-rolled electrolytic tinplate to ensure the consistency and reliability of material quality:

ISO 4977-1:1984 EN: specifies the size, surface quality, coating thickness and mechanical properties of the sheet

ISO 4977-2:1988 EN: Standardize the specifications of coils, including coil size, chemical composition, surface quality, etc., suitable for subsequent cutting into sheets

Key technical parameters of Double Reduced Cold-Rolled Tinplate steel

1. Mechanical properties: must meet the tensile strength, elongation and other indicators specified in the standard to ensure formability during processing.

2. Plating requirements: The tin layer thickness is uniform, the adhesion is strong, and there is no pinhole or shedding phenomenon to ensure corrosion resistance.

3. Dimension tolerance: The thickness, width and length deviation of the plate and coil must be controlled within a very small range to meet the needs of high-precision manufacturing

PRODUCT DISPLAY

CERTIFICATE

CUSTOMER FEEDBACK

FAQ

Q1: Are You Manufacture or Trade Company?
A1: We are the professional manufacturer of stainless steel, carbon steel, aluminum products located in Shandong province, China. Welcome to contact us and visit our factory before you place orders.

Q2: How do you guarantee the quality?
A2: We can send free samples to you, we can accept third-party testing.
We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.

Q3: Can I get free samples?
A3: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.

Q4: What is the MOQ?
A4: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.

Q5: Can you OEM or ODM?
A5: Yes, we have a strong developing team. The products can be made according to your request

Q6:What are the certifications for your products?
A6:We have ISO 9001, SGS, EWC and other certifications.

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