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AISI 430 Stainless Steel Foil
Available Configurations
Properties common to all products in this list
Key Features
AISI 430 Stainless Steel Foil (UNS S43000) is a ferritic chromium stainless steel foil with 16-18% chromium, offering strong resistance to oxidation, good high-temperature stability up to approximately 870 °C, and inherent soft magnetic properties that austenitic stainless foils cannot provide:
Inherent Soft Magnetic Properties Unavailable in Austenitic Foils
AISI 430 Foil offers inherent soft magnetic properties that austenitic stainless foils cannot provide, supporting applications requiring both formability and electromagnetic function.
Strong Resistance to Oxidation & Good High-Temperature Stability
Strong resistance to oxidation and good high-temperature stability up to approximately 870 °C suit AISI 430 Foil to automotive heat exchangers and appliance panels exposed to elevated temperatures.
Excellent Surface Finish & Consistent Dimensional Precision
In thin rolled form, AISI 430 Foil offers excellent surface finish, consistent dimensional precision, and lower work-hardening rates than austenitic grades.
Lower Work-Hardening Rates Than Austenitic Grades
Lower work-hardening rates than austenitic grades make AISI 430 Foil suitable for applications requiring both formability and electromagnetic function, including honeycomb and truss-core structures.
Suited to Electronic Circuit Substrates on Stainless Backing
Thick-film electronic circuit substrates on stainless backing benefit from AISI 430 Foil's combination of dimensional precision and magnetic functionality unavailable in austenitic alternatives.
Industrial Applications
AISI 430 Stainless Steel Foil is used across automotive, appliance, electromagnetic shielding, and electronics sectors wherever both formability and electromagnetic function are required:
- ✦ Automotive Heat Exchangers
- Used in automotive heat exchangers, where strong resistance to oxidation and good high-temperature stability up to approximately 870 °C ensure reliable performance under demanding thermal cycling.
- ✦ Appliance Panels
- Formed into appliance panels, where excellent surface finish and consistent dimensional precision combined with formability support efficient, high-quality panel manufacture.
- ✦ Electromagnetic Shielding Strips
- Used as electromagnetic shielding strips, where inherent soft magnetic properties — unavailable in austenitic stainless foils — provide functional electromagnetic shielding performance.
- ✦ Honeycomb & Truss-Core Structures
- Employed in honeycomb and truss-core structures for lightweight stiffness, where lower work-hardening rates than austenitic grades support efficient forming of complex lightweight geometries.
- ✦ Thick-Film Electronic Circuit Substrates on Stainless Backing
- Used in thick-film electronic circuit substrates on stainless backing, where dimensional precision and magnetic functionality support reliable circuit performance.
- ✦ Ferritic Recrystallization & Electronics Surface Treatment Research
- Supports investigations into ferritic recrystallization, surface treatment for electronics applications, and electromagnetic component optimization.
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |