Stainless Steel, Ferritic
S43000 - 430 Stainless Steel
Ferritic 17% chromium stainless steel.
Stainless steel type 1.4016 is also commonly known as grade 430.
Type 430 stainless steel combines good corrosion resistance with good formability and ductility. It is a ferritic, non-hardenable plain chromium stainless steel with excellent finish quality.
Grade 430 also has excellent resistance to nitric attack, which makes it well suited to use in chemical applications. The most popular applications for 430 are in domestic appliances and decorative trim.
430 stainless steel is a ferritic, chromium-based stainless steel known for its good corrosion resistance, excellent formability, and magnetic properties. It belongs to the 400 series of stainless steels and is widely used in applications where moderate corrosion resistance and low cost are important.
Property data given in this document is typical for bar and flat rolled products covered by EN standards. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.
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Range
| Sheet Size | Finish | Thicknesses |
| 2000mm x 1000mm | 2R (BA) Finish | 0.5mm -2.0mm |
| 2000mm x 1000mm | 240 Silicon Fibre Optic Coating | 0.7mm - 2.0mm |
| 2500mm x 1250mm | 2R (BA) Finish | 0.5mm - 2.0mm |
| 2500mm x 1250mm | 240 Silicon Fibre Optic Coating | 0.7mm - 2.0mm |
| Tube | Finish | Dimensions |
| Rectangular Tube | Dull Polished | 40 x 20 x 1.5mm wall |
| Square Tube | Dull Polished | 25 x 25mm - 40 x 40mm |
PLEASE NOTE
If you do not see what you are looking for, please contact your local service centre with your specific requirements.
Related Specifications
- S11710
- SUS 430
- STS 430
- S43000
- X6Cr 17
- Z8C 17
- 1.4016
- 430S15
Properties
Chemical Composition
1.4016 Steel
EN 10088-2
| Chemical Element | % Present |
| Carbon (C) | 0.00 - 0.08 |
| Chromium (Cr) | 16.00 - 18.00 |
| Manganese (Mn) | 0.00 - 1.00 |
| Silicon (Si) | 0.00 - 1.00 |
| Phosphorous (P) | 0.00 - 0.04 |
| Sulphur (S) | 0.00 - 0.02 |
| Iron (Fe) | Balance |
Mechanical Properties
Bar Up to 100mm Diamater/Thickness
EN 10088-3
| Mechanical Property | Value |
| Proof Stress | 250 Min MPa |
| Tensile Strength | 400-630 MPa |
| Elongation A50 mm | 20 Min % |
| Hardness Brinell | 200 Max HB |
Sheet Up to 8mm Thick
EN 10088-2
| Mechanical Property | Value |
| Proof Stress | 260 Min MPa |
| Tensile Strength | 450 - 600 MPa |
| Elongation A50 mm | 20 Min % |
Plate Over 8mm to 13.5mm / Thick
EN 10088-2
| Mechanical Property | Value |
| Proof Stress | 240 Min MPa |
| Tensile Strength | 450 - 600 MPa |
| Elongation A50 mm | 18 Min % |
Plate Over 13.5mm to 25mm Thick
EN 10088-2
| Mechanical Property | Value |
| Proof Stress | 240 Min MPa |
| Tensile Strength | 430 - 630 MPa |
| Elongation A50 mm | 20 Min % |
General Physical Properties
| Physical Property | Value |
| Density | 7.75 g/cm³ |
| Melting Point | 1425-1510 °C |
| Thermal Expansion | 10.4 x 10-6/K |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 23.9 W/m.K |
| Electrical Resistivity | 0.60 x 10-6 Ω .m |
Applications of 430 Stainless Steel
430 stainless steel is a ferritic, chromium-based stainless steel known for its good corrosion resistance, excellent formability, and magnetic properties. It is widely used in applications where moderate corrosion resistance and cost-effectiveness are important.
1. Household Applications
Kitchen appliances: Sinks, dishwashers, refrigerators, and ovens.
Cookware and utensils: Flatware and other household items.
2. Automotive Applications
Trim and decorative components: Grills, moldings, and other exterior automotive parts.
Exhaust components: Where moderate corrosion resistance is required.
3. Industrial Applications
Architectural panels and cladding: Interior and exterior decorative panels.
Industrial equipment: Mildly corrosive environments requiring formability and magnetic properties.
4. Summary
430 stainless steel is widely used in household, automotive, architectural, and industrial applications due to its combination of moderate corrosion resistance, good formability, magnetic properties, and cost-effectiveness.
Characteristics of 430 Stainless Steel
430 stainless steel is a ferritic, chromium-based stainless steel known for its good corrosion resistance, excellent formability, and magnetic properties. It is part of the 400-series stainless steels and is widely used in applications where cost-effectiveness and moderate corrosion resistance are important.
1. Mechanical Properties
Moderate strength and hardness: Suitable for components not subjected to extreme stress.
Good ductility and formability: Can be bent, drawn, or formed easily.
2. Corrosion Resistance
Moderate corrosion resistance in mild oxidizing environments.
Less resistant than austenitic stainless steels but suitable for indoor, household, and mildly corrosive environments.
3. Fabrication
Easily formed and fabricated using conventional methods.
Cannot be hardened by heat treatment; strength is improved through cold working.
4. Magnetic Properties
Magnetic due to its ferritic structure, suitable for applications requiring magnetic response.
5. Applications
Kitchen appliances (sinks, dishwashers, refrigerators)
Automotive trim and decorative parts
Architectural panels and cladding
Industrial equipment in mildly corrosive environments
Summary
430 stainless steel is a ferritic, chromium-based stainless steel offering moderate corrosion resistance, good formability, and magnetic properties. Its combination of cost-effectiveness, durability, and ease of fabrication makes it ideal for household, automotive, architectural, and industrial applications.
Additional Information
Fabrication
Fabrication of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel known for its good corrosion resistance, excellent formability, and moderate mechanical strength. Its properties make it suitable for a variety of applications in household, automotive, and industrial components.
1. Forming
Cold Working:
Can be bent, drawn, or rolled with good ductility.
Minimal springback compared to austenitic stainless steels.
Hot Working:
Typically hot working is not required because 430 stainless steel is highly formable at room temperature.
If hot forming is performed, temperature ranges of 815–925°C (1500–1700°F) are recommended.
2. Machining
Machinable with high-speed steel (HSS) or carbide tools.
Produces minimal tool wear compared to martensitic stainless steels.
Use cutting fluids to improve surface finish and dimensional accuracy.
3. Welding
Weldable by conventional methods: TIG, MIG, or resistance welding.
Post-weld annealing is recommended to restore corrosion resistance in the heat-affected zone.
Filler metals compatible with ferritic stainless steels, such as 430F, are typically used.
4. Heat Treatment
430 stainless steel cannot be hardened by heat treatment like martensitic grades.
Annealing at 815–925°C (1500–1700°F) followed by rapid air cooling improves ductility and relieves stresses.
5. Applications Related to Fabrication
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and architectural features
Heat exchangers and decorative parts
Summary
430 stainless steel is highly fabricable, offering excellent cold working, machinability, and weldability. While it cannot be hardened by heat treatment, its formability, moderate corrosion resistance, and surface finish quality make it ideal for household, automotive, industrial, and decorative applications.
Weldability
Weldability of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel known for its good corrosion resistance, excellent formability, and moderate mechanical strength. It is generally weldable using conventional methods, but specific precautions are necessary due to its ferritic structure.
1. Suitable Welding Methods
TIG (GTAW): Produces precise, high-quality welds.
MIG (GMAW): Suitable for faster production.
Resistance Spot Welding: Common in sheet metal applications.
2. Welding Considerations
Preheating: Usually not required for thin sections, but may be applied for thicker sections to reduce thermal stress.
Filler Metals: Use a ferritic or austenitic filler compatible with 430 stainless steel, such as 430F or 308L for improved corrosion resistance.
Post-Weld Treatment:
Minimal distortion occurs due to the low thermal expansion of ferritic stainless steels.
Stress-relief annealing can enhance ductility and corrosion resistance in the weld zone if required.
3. Limitations
Cracking risk is lower than martensitic stainless steels but higher than austenitic types under high restraint.
Corrosion resistance in the weld zone may be slightly lower than in the base metal if improper filler or cooling is used.
4. Applications Related to Weldability
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and architectural features
Heat exchangers and decorative parts
Summary
430 stainless steel is readily weldable using TIG, MIG, or resistance welding. Proper filler selection, controlled cooling, and optional post-weld stress relief ensure strong, corrosion-resistant welds. Its good weldability and formability make it suitable for household, automotive, industrial, and decorative applications.
Machinability
Machinability of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel known for its good corrosion resistance, excellent formability, and moderate strength. Its machinability is moderate, easier than most martensitic stainless steels but more challenging than standard carbon steels.
1. Key Machining Characteristics
Moderate machinability: Produces continuous chips with careful control.
Work hardening: Minimal compared to austenitic stainless steels, reducing the risk of surface hardening.
Achieves good surface finish and dimensional accuracy with proper tooling and speeds.
2. Tooling Recommendations
High-speed steel (HSS) or carbide tools are recommended for efficient machining.
Use cutting fluids or coolants to minimize heat buildup and improve tool life.
Sharp tools and controlled feed rates help reduce stress and surface defects.
3. Machining Considerations
Suitable for turning, milling, drilling, and tapping.
Avoid excessive cutting speeds to prevent surface discoloration and work hardening.
Light cuts and gradual feed rates help maintain dimensional accuracy.
4. Applications Related to Machinability
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and machinery parts
Decorative and architectural hardware
Summary
430 stainless steel offers moderate machinability, allowing effective turning, milling, drilling, and tapping with proper tooling and conditions. Combined with its corrosion resistance, formability, and surface finish quality, it is ideal for household, automotive, industrial, and decorative applications.
Corrosion Resistance
Corrosion Resistance of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel with good corrosion resistance, particularly in mild environments. While it does not match the corrosion resistance of austenitic grades such as 304 or 316, it performs well in household, automotive, and indoor industrial applications.
1. General Corrosion Resistance
Resistant to oxidation and mild corrosion in air, water, and mildly corrosive atmospheres.
Performs well in indoor and mildly aggressive outdoor environments.
Corrosion resistance can be enhanced by polishing, passivation, or protective coatings.
2. Stress Corrosion and Chloride Sensitivity
Low susceptibility to stress corrosion cracking compared to austenitic stainless steels.
Limited resistance to chloride-induced pitting and crevice corrosion; not suitable for seawater or highly saline environments.
3. Effects of Fabrication and Welding
Welding may slightly reduce corrosion resistance in the heat-affected zone, but proper filler metals and post-weld treatment can restore performance.
Surface finishing, such as polishing or passivation, enhances long-term corrosion resistance.
4. Applications Related to Corrosion Resistance
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and machinery exposed to mild moisture
Decorative and architectural hardware
Summary
430 stainless steel provides good corrosion resistance in mild to moderately corrosive environments. Combined with its formability, moderate strength, and aesthetic finish, it is suitable for household, automotive, industrial, and decorative applications.
Cold Working
Cold Working of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel with good formability, moderate strength, and corrosion resistance. It responds well to cold working processes, making it suitable for manufacturing thin sheets, strips, and precision components.
1. Cold Working Processes
Bending and Forming: Easily bent into shapes for household, automotive, and industrial components.
Rolling: Suitable for producing sheets, strips, and foils.
Drawing and Stamping: Can be used to create precision parts and deep-drawn components.
Punching and Shearing: Performs well in precision cutting applications.
2. Work Hardening
Minimal work hardening compared to austenitic stainless steels.
Retains ductility and formability during moderate deformation.
Extensive deformation may require stress-relief annealing to restore ductility.
3. Fabrication Considerations
Use gradual deformation to prevent cracking or distortion.
Proper tooling and lubrication help ensure smooth forming and surface quality.
Cold-worked components can benefit from light annealing if tight tolerances or high-stress applications are involved.
4. Applications Related to Cold Working
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and decorative parts
Components requiring precise dimensions and smooth surfaces
Summary
430 stainless steel exhibits excellent cold working properties, allowing bending, rolling, drawing, stamping, and punching with minimal work hardening. Its combination of formability, moderate strength, and corrosion resistance makes it ideal for household, automotive, industrial, and decorative applications.
Heat Treatment
Heat Treatment of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel, which means it cannot be hardened by conventional heat treatment like martensitic stainless steels. Heat treatment is primarily used for stress relief, softening, and restoring ductility after fabrication or welding.
1. Annealing
Purpose: Relieve internal stresses and restore ductility after cold working or welding.
Temperature range: 815–925°C (1500–1700°F)
Cooling: Rapid air cooling to avoid carbide precipitation.
2. Stress Relief
Purpose: Reduce residual stresses in formed or welded components.
Temperature range: 400–650°C (750–1200°F)
Maintains mechanical properties and dimensional stability.
3. Limitations
430 stainless steel cannot be hardened by quenching and tempering.
Mechanical strength is primarily determined by cold working and thickness, not heat treatment.
4. Applications Related to Heat Treatment
Kitchen appliances and sinks
Automotive trim and exhaust components
Industrial panels and decorative architectural parts
Components requiring dimensional stability and corrosion resistance
Summary
430 stainless steel is not hardenable, but annealing and stress-relief treatments can optimize ductility, dimensional stability, and corrosion resistance after fabrication or welding. Proper heat treatment ensures reliable performance in household, automotive, industrial, and decorative applications.
Heat Resistance
Heat Resistance of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel known for its good corrosion resistance, formability, and moderate mechanical strength. Its heat resistance is moderate, suitable for applications with intermittent or mild elevated temperatures.
1. Continuous Service Temperature
Suitable for continuous service up to approximately 815°C (1500°F).
Maintains strength and corrosion resistance under moderate thermal exposure.
2. Intermittent or Short-Term Exposure
Can tolerate short-term exposure up to around 870°C (1600°F).
Prolonged exposure beyond these temperatures may cause oxidation, scaling, and reduced corrosion resistance.
3. Oxidation Resistance
Forms a chromium oxide layer that protects against mild oxidation.
Not recommended for highly oxidizing or corrosive high-temperature environments.
4. Applications Related to Heat Resistance
Kitchen appliances exposed to heat (oven linings, hoods)
Automotive exhaust components
Industrial panels and machinery parts
Decorative and architectural elements exposed to elevated temperatures
Summary
430 stainless steel provides moderate heat resistance, suitable for mildly elevated temperatures and intermittent thermal exposure. Combined with its formability, corrosion resistance, and surface finish quality, it is ideal for household, automotive, industrial, and decorative applications.
Hot Working
Hot Working of 430 Stainless Steel
430 stainless steel is a ferritic stainless steel with good formability, moderate strength, and corrosion resistance. Hot working allows shaping of components, especially for thicker sections, while minimizing the risk of cracking and improving ductility.
1. Recommended Hot Working Temperature
Optimal temperature range: 815–925°C (1500–1700°F)
Working above this range may cause grain growth, reducing mechanical properties.
Working below this range can lead to increased strength and reduced ductility, making forming more difficult.
2. Hot Working Processes
Forging: Suitable for thicker components and structural parts.
Hot Rolling: Produces sheets, strips, and bars.
Extrusion and Hot Forming: Allows shaping of complex profiles and large parts.
3. Advantages of Hot Working
Reduces work hardening compared to cold working.
Improves ductility and toughness, allowing easier shaping of thick or intricate components.
Produces components with uniform mechanical properties.
4. Post-Hot Working Treatment
Annealing can relieve residual stresses and restore ductility.
Pickling or passivation may improve corrosion resistance if surface scale forms during hot working.
5. Applications Related to Hot Working
Automotive components requiring forged or formed parts
Industrial machinery components
Architectural and decorative panels
Structural parts exposed to mild corrosion and elevated temperatures
Summary
430 stainless steel exhibits good hot working properties, allowing forging, rolling, extrusion, and hot forming at 815–925°C. Hot working improves ductility, reduces work hardening, and ensures uniform mechanical properties, making 430 stainless steel suitable for household, automotive, industrial, and decorative applications.
