SUS430 - UNS S43000 | Ferritic Stainless Steel

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SUS430 - UNS S43000 | Ferritic Stainless Steel

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MOQ : 100 Kilograms

SUS430 - UNS S43000 | Ferritic Stainless Steel Specification

Temper
BA (Bright Annealed), 2B (Skin Passed), As Rolled (Hard)

Chemical Composition
Refer to the image

Width
3.0 to 300 Millimeter (mm)

Grade
TDS-1

Thickness
0.030 to 2.0 Millimeter (mm)

Surface
Bright, Dull

Application
Shielding Cases, Electromagnetic Shields, Capacitors, Actuators

Shape
Coil, Sheet

SUS430 - UNS S43000 | Ferritic Stainless Steel Trade Information

Minimum Order Quantity
100 Kilograms

Payment Terms
Telegraphic Transfer (T/T)

Packaging Details
Our Standard Packing for Export

Main Export Market(s)
Asia, North America, South America, Eastern Europe, Western Europe, Middle East

About SUS430 - UNS S43000 | Ferritic Stainless Steel

Grade	TDS-1
Shape	Coil, Sheet
Thickness	0.030-2.0(Strip, Sheet) Millimeter (mm)
Width	3.0-300(Strip, Sheet) Millimeter (mm)
Length	Strip or Sheet(Length less than 2,000mm)
Technique	Cold Rolled
Temper	BA(Bright Annealed), 2B(Skin passed), As Rolled(Hard)
Surface	Bright, Dull
Application	Shielding Cases, Electromagnetic Shields, Capacitors, Actuators
Coil I.D.	300, 400, 521mm
Chemical Composition	Refer to the image
Mechanical Properties	Refer to the image
Density	7.73 g/cm
Electrical Resistivity	70 cm
Young's Modulus	206 GPa
Thermal Expansion	11.310^-6/K0100
Thermal Conductivity	25.1 W/(mK) (100)
Melting Range	1460-1500
Magnetism	Soft Magnetism
Minimum Order Quantity	100 Kilograms
Country of Origin	Japan, China
Payment Terms	Telegraphic Transfer (T/T)
Delivery Terms	EXW, FOB, CIF, DAP etc.
Packaging Details	Our Standard Packing for Export
Main Export Market(s)	Asia, Muddle East, North America, South America, Europe etc.

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:

Electromagnetic Stainless Steel: It can be used as an electromagnetic stainless steel by magnetic annealing.
Corrosion Resistance: TDS-1 has a better corrosion resistance than SUS430.
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%.
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.

SUS430 - UNS S43000 | Ferritic Stainless Steel :

TDS-1 is a proprietary high-performance ferritic stainless steel designed to provide an exceptional combination of strength, corrosion resistance, and soft magnetic properties. The material is specifically engineered for electromagnetic applications requiring efficient magnetic response, magnetic shielding capability, and long-term durability.

TDS-1 exhibits both high magnetic flux density and low coercive force, enabling rapid magnetization and demagnetization while delivering excellent magnetic shielding performance. Through magnetic annealing, the material can function as an electromagnetic stainless steel suitable for a wide variety of electronic and industrial applications.

Compared with conventional ferritic stainless steels such as SUS430, TDS-1 offers enhanced corrosion resistance while maintaining strong mechanical properties and magnetic performance.

One of the most significant advantages of TDS-1 is its ability to replace expensive specialty materials such as 42 Alloy (42Ni), phosphor bronze, SUY, and Permalloy in many applications. While offering electrical conductivity similar to 42 Alloy, TDS-1 has a coefficient of thermal expansion approximately half that of 42Ni and can reduce material costs by up to 50%.

Main Features:

Electromagnetic Stainless Steel

Can be optimized through magnetic annealing to achieve excellent electromagnetic performance and soft magnetic characteristics.

Excellent Soft Magnetic Properties

High magnetic flux density and low coercive force provide superior magnetization, demagnetization, and magnetic shielding performance.

Improved Corrosion Resistance

Offers better corrosion resistance than SUS430, supporting long-term reliability in demanding environments.

Alternative to 42 Alloy (42Ni)

Provides similar electrical conductivity while significantly reducing thermal expansion and material costs.

Cost Reduction Opportunity

Material substitution from 42Ni can reduce costs by as much as 50% while maintaining required performance.

Proven Replacement Material

Successfully adopted as a replacement for 42Ni, phosphor bronze, SUY, Permalloy, and other specialty alloys in numerous applications.

Ultra-Thin Foil Capability

Available in foil thicknesses below 0.10 mm and suitable for small-lot production requirements.

TDS-1 is widely used in shielding cases, electromagnetic shields, capacitors, actuators, sensors, electronic components, magnetic circuits, and precision industrial equipment where a balance of magnetic performance, corrosion resistance, dimensional stability, and cost efficiency is required.

Its combination of soft magnetic characteristics, conductivity, corrosion resistance, and replacement potential for high-cost specialty alloys makes TDS-1 an attractive solution for advanced electronic and electromagnetic applications.

Versatile Stainless Steel for Precision Applications

SUS430 ferritic stainless steel is engineered for high-performance roles in electronics and electrical assemblies, such as electromagnetic shields and capacitors. Its meticulously controlled thickness and width allow for custom fabrication and seamless integration into specialized components. Multiple temper and surface options provide flexibility to match exact end-use requirements, making it an ideal choice for diverse industrial environments where reliability and durability are paramount.

Exceptional Quality Backed By Japanese Manufacturing

Producers in Japan are known for their advanced expertise and rigorous quality control standards. SUS430 coils and sheets are manufactured using state-of-the-art processes to ensure uniform chemical composition and mechanical properties. Whether you need material with a bright annealed, skin-passed, or as-rolled finish, Japanese suppliers provide consistent and dependable stainless steel products that meet global expectations for performance in critical applications.

FAQ's of SUS430 - UNS S43000 | Ferritic Stainless Steel:

Q: How is SUS430 stainless steel typically processed for industrial applications?

A: SUS430 is processed using cold rolling techniques which enable precise control of thickness and surface finish. Subsequent tempering, such as bright annealing or skin passing, delivers the desired mechanical properties and texture suitable for specific applications like shielding cases and actuators.

Q: What benefits does SUS430 offer for use in electromagnetic shielding and capacitors?

A: SUS430 offers excellent magnetic properties and corrosion resistance, making it ideal for electromagnetic shielding and capacitor components. Its stability and integrity help maintain the performance of sensitive electronic devices by blocking interference and supporting electrical insulation.

Q: When should BA, 2B, or As-Rolled temper options be chosen?

A: Selection depends on the application's requirements. BA (Bright Annealed) is preferable for high gloss and smooth surfaces, 2B (Skin Passed) provides a uniform matte finish, while As-Rolled (Hard) is suitable for applications demanding higher strength and rigidity.

Q: Where are manufacturers and suppliers of SUS430 stainless steel based?

A: The primary exporters and manufacturers of SUS430 stainless steel for the specified range are located in Japan, renowned for their advanced materials engineering and quality assurance.

Q: What is the typical thickness and width range available for SUS430 coils and sheets?

A: SUS430 is supplied in thicknesses from 0.030 to 2.0 millimeters, and widths from 3.0 to 300 millimeters, offering precise dimensional flexibility for custom industrial uses.

Q: How is SUS430 utilized in actuators and shielding cases?

A: In actuators, the material's hardness and stability are vital for dynamic mechanical parts. For shielding cases, SUS430's magnetic properties ensure effective electromagnetic interference suppression, protecting sensitive electronics from stray signals.

Q: What are the advantages of selecting Japanese-manufactured SUS430 stainless steel?

A: Japanese manufacturers provide rigorously inspected SUS430 material, ensuring consistency in surface quality, dimensions, and chemical composition. This results in reliable products suited for demanding technical environments and international export.

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