T4 Tin Free Steel Coil TFS/TMBP | Electrolytic Chromium Coated ECCS Steel Coil

High hardness & rigidity for stiff formed components
Excellent paint and printing ink bonding performance
Wear-resistant chromium coating surface
Low deformation after stamping forming
Available single-sided and double-sided coating options

Product Overview

T4 Tin Free Steel Coil (TFS/TMBP / ECCS) is low-carbon cold rolled steel with electrolytic chromium coating. T4 temper grade has higher hardness and strength than T3, ideal for rigid packaging parts requiring stiffness and low deformation after forming. It can be supplied as TFS-S single-sided or TFS-D double-sided chromium coating. Thickness 0.15–0.45 mm, standard coil width 800–1050 mm, custom slitting service available. Common applications: rigid metal caps, heavy-duty paint pail lids, hard printed metal containers.

Tin Free Steel Coil - TFS/TMBP

Chemical & Mechanical Property Snapshot

Grade	C Max (%)	Mn Max (%)	P Max (%)	S Max (%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Hardness (HR30T)
T4	0.12	0.60	0.020	0.050	290–370	390–470	≥16	58–64

Detailed Technical Specifications

Item	Specification
Product Name	T4 Tin Free Steel Coil – TFS/TMBP
Alternative Name	T4 ECCS Electrolytic Chromium Coated Steel
Steel Substrate	Low-carbon cold rolled steel
Surface Treatment	Electrolytic chromium coating
Metallic Chromium Coating	70–150 mg/m²
Chromium-Hydrated-Oxide Layer	5–15 mg/m²
Coating Configuration	TFS-S / TFS-D
Temper Grade	T4
Thickness	0.15–0.45 mm
Standard Coil Width	800–1050 mm
Slitting	Custom narrow-width slitting available
Applicable Standards	ASTM A624/A624M, JIS G3315, EN 10202, GB/T 2520
Quality Documentation	Mill Test Certificate covering coating weight, mechanical properties and chemical composition
Packing	Seaworthy export-grade packing
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit
Package	Waterproof paper + galvanized steel strap + seaworthy export wooden pallet

Product Comparison Table

Specification	T4 TFS-S	T4 TFS-D	T4 ETP Tinplate
Material Type	Tin Free Steel	Tin Free Steel	Electrolytic Tinplate
Surface Treatment	Electrolytic Chromium Coating	Electrolytic Chromium Coating	Electrolytic Tin Coating
Coating Sides	Single-Sided	Double-Sided	Tin Coating on Both Sides
Surface Structure	Metallic Chromium + Chromium-Hydrated Oxide	Metallic Chromium + Chromium-Hydrated Oxide	Tin Coating
Paint / Printing Adhesion	Excellent	Excellent	Good, depending on application
Yield Strength Range	290–370 MPa	290–370 MPa	290–370 MPa
Typical Selection Factor	Rigid parts, single side coating	Stiff packaging, double side coating	Rigid welded metal cans
Thickness Range	0.15–0.45 mm	0.15–0.45 mm	0.15–0.45 mm
Standard Width	800–1050 mm	800–1050 mm	800–1050 mm
Typical Applications	Rigid metal bottle caps	Heavy paint pail lids, stiff printed boxes	Rigid welded food & chemical cans
Important Boundary	Not suitable for hermetic sealed welding	Not suitable for hermetic sealed welding	Suitable for sealed can welding

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Lithium Battery Steel Casing

Cosmetic Packaging Boxes

Crown Caps for Beer and Beverages

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is T4 TFS used for?

T4 grade is for rigid packaging parts requiring high stiffness, such as heavy paint pail lids and hard metal caps.

Is T4 TFS good for deep drawing?

Elongation is lower than T1-T3 grades. T4 is for simple stamping, not deep drawing applications.

Can you provide T4 TFS coil with custom width?

Yes, custom slitting available.

What documents you provide for customs clearance?

Commercial invoice, packing list, bill of lading and Mill Test Certificate.

What is hardness HR30T of T4 TFS?

HR30T 58–64.

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T4 Tin Free Steel Coil TFS/TMBP | Electrolytic Chromium Coated ECCS Steel Coil