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Materials Technologies
●Extremely thin metallic foils (High-precision rolled foils)
Extremely thin metallic foils (High-precision rolled foils)
Manufacturing processes for extremely thin metallic foils (High-precision rolled foils)
By repeatedly applying cold rolling and heat treatment to our materials, we can meet your requirements for material properties and dimensions. We also accept orders of commissioned rolling operation. So, please contact us when you need to roll your hoop materials into extremely thin metallic foils. Moreover, we can add additional properties appropriate for the application in question by plating (hoop plating, etc.) the surface of the material.
*Certain products may have some manufacturing processes outsourced.
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Providing thinner, flatter and more precise metal foils to customers.
High-precision thickness (Ensuring to increase the precision of the amplitude thickness twice as compared with conventional way)
Improvement of flatness (Pursuing higher flatness)
Measurement result by three-dimensional shape measurement instrument
Various surface finish is available by rolling.
| Appearance | Glossiness Gs45°(%) |
Surface roughness Rz(μm) |
|
| sample A | Bright | 730 | 0.30 |
| sample B | Slightly bright | 450 | 0.50 |
| sample C | Dull | 230 | 0.65 |
| sample D | Dull (TW) | 90 | 1.10 |
○ We will offer less warpage materials after etching processing.
We will offer materials of small residual stress.
We can roll various ultrathin foils such as stainless steels, nickel steels and copper alloys upto 2-5um thickness.
Narrow stainless steel foils (4mm width)
Wide stainless steel foils (600mm width)
List of foil products
| Materials | Material Code | Composition (mass％) |
|---|---|---|
| Austenitic stainless steels | SUS301 | 17Cr-7Ni-Fe |
| SUS304 | 18Cr-8Ni-Fe | |
| SUS304L | 18Cr-8Ni-Fe C≦0.03 | |
| SUS316 | 18Cr-12Ni-2.5Mo-Fe | |
| SUS316L | 18Cr-12Ni-2.5Mo-Fe C≦0.03 | |
| Ferritic stainless steels | SUS430 | 18Cr-Fe |
| Precipitation-hardened stainless steels |
SUS631 | 17Cr-7Ni-1Al-Fe |
| ASL™350 | 16.5Cr-4.5Ni-2.8Mo-Fe | |
| Oxygen-free copper | C1020 | Cu≧99.96 |
| Tough-pitch copper | C1100 | Cu≧99.9 |
| Phosphorous-deoxidized copper strip |
C1220 | 0.03P-Cu |
| Brass strip | C2680 | 35Zn-Cu |
| Phosphor bronze strip | C5191 | 6Sn-0.2P-Cu |
| C5212 | 8Sn-0.2P-Cu | |
| Beryllium copper strip | C1720 | 1.9Be-Cu |
| Phosphor bronze strip for springs | C5210 | 8Sn-0.2P-Cu |
| Nichrome strip type 1 | NCHR1 | 20Cr-Ni |
| Titanium strip type 1 | TR270C | Ti |
| Titanium strip type 2 | TR340C | Ti |
| Pure nickel strip | Ni | Ni |
ASL is a registered trademark or a trademark of Proterial, Ltd.
We consider the possibility of producing materials other than listed above if needed.
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