Metal Foils (Under t0.10mm)

Unique Technologies/High Performance Materials

High Performance Materials

Metal Foils (Under t0.10mm)

Overview & Features

A material with a thickness of less than 0.10 mm is generally called a foil.
In recent years, components design has been moving in the direction of lighter, thinner, shorter, and smaller parts, and reducing the thickness of existing materials, is an effective way to achieve these goals.
Recently, an increasing number of customers are considering switching to foil materials to reduce the height, weight, and size of components.
We can produce foil materials in all the materials we manufacture, from stainless steel, low carbon steel, high carbon steel, and other steel materials to nonferrous metals such as nickel alloys, cobalt alloys, and copper alloys.
Please refer to this page for stainless steel foil (SUS foil) manufacturing ranges and standards.

Main features of our metal foils:

(1) Electrolytic Plating is also available.
Such as nickel plating and precious metal plating, which are in high demand for electronic component applications, can be processed in the hoop.
Although plating itself is an outsourced process, TOKKIN can help reduce man-hours for our customers by providing comprehensive management including plating.

(2) We promise high quality backed by many years of experience.
TOKKIN was the first company in Japan to succeed in rolling 10 µm thickness.
We guarantee quality control of surface defects, tight thickness tolerances, which are often required in electronic component applications and cannot be achieved with general materials.

(3) We manufacture custom spec material in small lots.
Because of made-to-order production, you can specify your preferred material, thickness, temper, and other specifications in detail.
Even materials with specific specifications that are rarely available on the market can be produced in small lots by our company.

Examples of Applications

Springs for Cellular phones, Shim Materials for Automobiles, Shutter Materials for Cameras, Materials for Heat Treatment

Supported Shapes

Manufacturable material grade: Carbon steels, Stainless Steels, Nickel alloys, Cobalt alloys, Copper alloys, etc.

Supported Range (COIL,SHEET)






COIL or SHEET less than 2000mm

Please refer to this page for Dimensional Tolerance.

Applicable mechanical properties vary depending on the material. Please refer to the details page of the desired material and request the required specifications (hardness, finish, etc.).
Some finishes may not be available depending on the thickness of the sheet, so please consult with us first.
*For ultra-thin foil, soft materials such as annealed or BA finish may not be applicable due to concerns about defects (folding, wrinkling, etc.).

【Iron】 Cold Rolled Steel Strips SPCC, Soft Magnetic Iron Steels SUY-1
【Steel】 Carbon Tool Steels TE-2, SK95(SK4), SK85(SK5)
【Resistance Materials】NCH-1, CN49, Zeranin30, Manganin, etc.
【Nickel Alloys】HC-276, HC-22, etc.
【Cobalt Alloys】MP35N, etc.
【Copper and Copper Alloys】C1020, etc.

We also offer very small lots (1 meter increments) for prototyping and cut samples (postcard size to A4 size).
*Please confirm the specifications of the samples we can provide on a case-by-case basis.

We also accept small-lot orders for prototypes, even with special specifications to meet customer requirements.

For sample requests, please feel free to contact us through our request quotation Form.

Resistance Alloys

We supply various types of resistance alloys: "Electrical Resistance Alloys" to control electricity and electric current, and "Electrical Heating Alloys" that utilize the property of metals to generate heat due to electric resistance. We control Temperature Coefficient of Resistance (TCR), conductor resistance, and guarantee thickness with high precision.

Superalloys(Nickel, Cobalt, and Titanium Alloys)

Materials based on Ni, Co, and Ti are superior to stainless steel in terms of corrosion resistance and heat resistance. In addition to cold-rolled strips manufactured by our company, we also provide thick plates, wires, bars, and ultra-thin pipes sourced from domestic and overseas partner companies for you.


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