nanoMAG™ | High-Strength and Soft Magnetic Stainless Steel｜TOKUSHU KINZOKU EXCEL CO., LTD.(TOKKIN)

Unique Technologies/High Performance Materials

Unique Technologies

nanoMAG™ | High-Strength and Soft Magnetic Stainless Steel

Soft Magnetism

Fatigue Properties

Precipitation/Age Hardening

Product Lineup

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Overview & Features

nanoMAG™a stainless steel combines "extremely high strength" and "excellent soft magnetic properties" through our proprietary grain size refining technology. It is five times stronger than electromagnetic soft iron, so it can also be used for applications such as rotor cores, which are subjected to strong centrifugal force due to high-speed rotation.

Main features of nanoMAG™:

(1)Extremely High Strength
Tensile Strength（TS）2000Mpa class(Equivalent or superior to SUS301-EH)

(2)Excellent Soft Magnetic Properties
Maximum flux density　1.5T(Equivalent to ferritic stainless steels)

(3)Good Corrosion Resistance
Equivalent or superior to ferritic stainless steels.

Examples of Applications

Rotor Cores, Motor Cores, Magnetic Shields

Available Shapes

Manufacturable Range (COIL, SHEET)

Thickness

0.020-0.12mm

Width

Under 250mm

Length

COIL or SHEET less than 2000mm

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

Chemical Composition

Physical Properties

Mechanical Properties

Correlations between maximum magnetic flux density and Strength

Related Pages

Chemical Composition

Physical Properties

Density

7.81 g/cm³

Specific Heat

420 J/(kg・K)

Electrical Resistivity

79 μΩ・cm

Young's Modulus

As rolled: 204 GPa, 　CH Condition: 260 GPa

Thermal Expansion

15.3×10^-6/K（0～100℃）

Thermal Conductivity

R仕上げ： 16 W/(m・K)

Melting Range

1414-1447 ℃

Magnetism

Soft Magnetism

Mechanical Properties

Typical values of mechanical properties after R-finish and CH treatment are shown in the table below.
Please contact us for specifications and other information.

Correlations between maximum magnetic flux density and Strength

nanoMAG&trade has extremely high strength compared to ferritic stainless steels and soft magnetic iron steels of soft magnetic materials.

Related Pages

Soft Magnetic Materials

Soft magnetic material is easily magnetized when a magnetic field is applied, but returns to its original state when the magnetic field is removed. We also manufacture our original steel grades such as electromagnetic stainless steel with corrosion resistance and extremely high strength.

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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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Related Products

TDS-1 | Soft Magnetic Stainless Steel

TDS-1 is a high-performance ferritic stainless steel with excellent strength, corrosion resistance, and soft magnetic properties.
It has high magnetic flux density and low coercive force, making it excellent in magnetization, demagnetization, and magnetic shielding properties. It can be used as electromagnetic stainless steel by applying magnetic annealing.

Main features of TDS-1:

(1) Electromagnetic Stainless Steel
It can be used as an electromagnetic stainless steel by magnetic annealing.

(2) Corrosion Resistance
TDS-1 has a better corrosion resistance than SUS430.

(3) Conductivity is nearly the same as 42 Alloy,
The coefficient of thermal expansion of TDS-1 is about half of 42Ni, though the conductivity is the same. Switching from 42Ni can reduce costs by as much as 50%.

(4) Extensive installation experiences with TDS-1 replacing other grades
We have abundant experience of introducing TDS-1 to our customers to replace their current steel grades such as 42Ni, phosphor bronze, SUY, Permalloy, etc.

We can also manufacture foils below 0.10 mm in thickness and in small lots.

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TDS-J™ | High-Corrosion Resistance and Soft Magnetic Stainless Steel

TDS-J is a high-performance ferritic stainless steel with excellent corrosion resistance and soft magnetic properties.
It has high magnetic flux density and low coercive force, making it excellent in magnetization, demagnetization, and magnetic shielding properties. It can be used as electromagnetic stainless steel by applying magnetic annealing.

Main features of TDS-J:

(1) Electromagnetic Stainless Steel
It can be used as an electromagnetic stainless steel by magnetic annealing.

(2) Corrosion Resistance
Its corrosion resistance is equivalent to austenitic stainless steel SUS304, so it can be used without plating or other surface treatment in general environments.This material is recommended for those who have corrosion resistance issues with conventional electromagnetic stainless steel.

We can also manufacture foils below 0.10 mm in thickness and in small lots.

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SUY-1 | Soft Magnetic Iron

SUY-1 is a mild steel with extremely low Carbon and low Impurities.
This grade is specified in "JIS C2504 Soft magnetic Irons", and is generally called "Pure iron". SUY is classified into four types, from Type 0 (SUY-0) to Type 3 (SUY-3), depending on the value of magnetic properties. Because of low carbon and Impurities, good drawability and soft magnetic properties^※, it is mainly used for motor applications. and recently, magnetic shielding application are also increasing. ※Magnetic properties include magnetic flux density and coercive force, which can be maximized by magnetic annealing again after cold working.

What is the difference between SUYP and SUYB?

In some cases, SUY is followed by P or B to indicate SUYP-1 or SUYB-1.　
This means P: Plate (plate/strip/strip) and B: Bar (bar/wire), and is an expression of shape within the name of the steel grade.
Example: SUYP-1 = SUY-1 with the shape of P (Plate, Strip, Stripe)

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