nanoSUS™ 301 | Ultrafine Grain Stainless Steel｜TOKUSHU KINZOKU EXCEL CO., LTD.(TOKKIN)

Unique Technologies/High Performance Materials

Unique Technologies

nanoSUS™ 301 | Ultrafine Grain Stainless Steel

Overview & Features

nanoSUS™ is a stainless steel that has ultrafine grained (UFG) microstructures with average grain sizes smaller than 1 μm. Compared to normal material, various property improvements can be expected, such as strength, fatigue properties, and workability by controlling the microstructure.

nanoSUS 301 uses SUS301 raw material, which enables high-strength finish such as EH, and nanoSUS (UFG) is expected to improve fatigue properties and spring properties compared to normal grain size.
We can produce different types of mechanical properties and grain sizes according to your requests and required characteristics. Please contact us for details.

Examples of Applications

Injection Needles, Vibration Motors/Haptics, Micro Oumps, Printer Components, Tact Switches/Membrane Switches, Injectors

Available Shapes

Manufacturable Range (COIL, SHEET)

Thickness

0.010-0.20mm *Contact sales if you need 0.20 mm-0.60 mm

Width

3.0-300mm

Length

COIL or SHEET less than 2000mm

This is the manufacturing range of coils and sheets we manufacture.

Chemical Composition

Physical Properties

Related Pages

Chemical Composition

Chemical composition is in accordance with JIS SUS301.

Physical Properties

Density

7.93 g/cm³

Specific Heat

502 J/(kg・K)

Electrical Resistivity

72 μΩ・cm

Young's Modulus

193 GPa

Thermal Expansion

16.9×10^-6/K（0～100℃）

Thermal Conductivity

16.3 W/(m・K)

Melting Range

1380-1420 ℃

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Ultrafine Grain Stainless Steel
nanoSUS™

nanoSUS™ a stainless steel in which the crystal grain size of the material is refined to about 1μm. The control of microstructure contributes to improving various properties such as strength, fatigue properties, and workability."

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JIN™

"TOKKIN's uniquely designed production method for JIN™ brings you a material that combines high strength and excellent workability that cannot be obtained with ordinary manufacturing methods. The balance of Yield stress (YS) exceeds 35,000 MPa x Elongation (EL) is among the highest in the world."

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Stainless Steels for Springs

This materials are possible to increase their hardness by rolling, they can be used as spring parts.

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Stainless Steels Foils (Under t0.10mm)

We offer not only thin stainless steel foils, but also propose the appropriate steel grade and temper depending on specific application and use requirements, such as strength, workablility, magnetism, and corrosion resistance.

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TOKKIN™ 301 JIN™ | High-Strength and High-Ductility Stainless Steel

By applying our proprietary "JIN™" process to SUS301 material, we have achieved high strength, excellent workability that cannot be obtained with ordinary manufacturing methods.

The surface treatment with our proprietary technology dramatically improves the surface corrosion resistance compared to the conventional SUS301.

Main features of TOKKIN 301 JIN:

(1)Achieving high strength and high ductility simultaneously.
Typical values: Yield Strength(Ys) over 1400 MPa & Elongation(El) over 20%

(2)Surface Corrosion Resistance far Superior to Ordinary SUS301

This material can meet the needs of customers who want to improve workability while maintaining the same strength as SUS301, who don't want to change material composition, or who want to omit precipitation hardening heat treatment of SUS631 or SUS632J1.

Product information dowlnload data sheet or more details on this page.

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nanoSUS™ 304 | Ultrafine Grain Stainless Steel

nanoSUS™ is a stainless steel that has ultrafine grained (UFG) microstructures with average grain sizes smaller than 1 μm. Compared to normal material, various property improvements can be expected, such as strength, fatigue properties, and workability by controlling the microstructure.

nanoSUS 304 uses SUS304 raw material. The 2B finish of nanoSUS304 has higher hardness and higher yield strength compared to the ordinary 2B finish. However, it maintains maintains almost the same formability as ordinary SUS304 and improves strength while maintaining workability.
We can produce different types of mechanical properties and grain sizes according to your requests and required characteristics. Please contact us for details.

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SUS301 | Austenitic Stainless Steel

SUS301 is a steel grade in which Chromium and Nickel are reduced from a typical austenitic stainless steel grade SUS304, so that it can be easily hardened by processing. Full hard finished materials such as EH and SEH, have extremely high strength equivalent to hardened materials by only cold rolling.
It is an ideal material for spring parts uses that require durability, such as spiral springs and membrane switches. In addition, its properties of austenitic stainless steel allow the product to be used in a variety of environments without plating to prevent rust.

We supply a variety of stainless steels for springs as specified in JIS G4313.
Please refer to this page for the features and comparison of each grade of stainless steel for springs.

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