Indholdsfortegnelse
304L and 430 stainless steels have unique properties and uses. 304L has high corrosion resistance and is good for welding. 430 is ferritic, with good formability and moderate corrosion resistance. Knowing their differences helps you choose the right material for your needs.
What Are the Equivalents of 304L and 430 Stainless Steel?
Equivalents of 304L Stainless Steel
- European Standard: 1.4307, 1.4301
- Japanese Standard: SUS304L
Equivalents of 430 Stainless Steel
- European Standard: 1.4016
- Japanese Standard: JIS G4305
Nøgleforskelle
| Ejendom | 304L | 430 |
|---|
| Indhold af nikkel | Højere | Very Low |
| Modstandsdygtighed over for korrosion | Høj | Moderat |
| Svejsbarhed | Fremragende | Begrænset |
| Formbarhed | God | God |
| Omkostninger | Højere | Lavere |
Corrosion Resistance Comparison: 304L and 430
304L rustfrit stål
- Higher chromium (18-20%) and nickel (8-12%) content.
- Excellent in acidic and chlorinated environments.
- Ideal for chemical processing, outdoor equipment, and kitchen appliances.
430 Rustfrit stål
- Lower chromium (16-18%) and almost no nickel.
- Good in mild environments.
- Used in appliances, automotive trim, and indoor architecture.
Sammenligningstabel
| Ejendom | 304L | 430 |
|---|
| Indhold af krom | 18-20% | 16-18% |
| Indhold af nikkel | 8-12% | <0.75% |
| Modstandsdygtighed over for klorider | Høj | Lav |
| Egnethed til marine miljøer | Høj | Lav |
Surface Finish and Aesthetic Differences: 304L vs 430
304L rustfrit stål
- High polish potential.
- Smooth finish after processing.
- Ideal for visible and sanitary applications.
430 Rustfrit stål
- High reflectivity but highlights imperfections.
- Good for decorative applications.
- Less smooth finish compared to 304L.
Sammenligningstabel
| Ejendom | 304L | 430 |
|---|
| Finish Quality | Høj | Moderat |
| Polish Potential | Høj | Høj |
| Application Areas | Sanitary, visible areas | Decorative, less demanding areas |
Composition and Properties: 304L vs 430 Stainless Steel
304L rustfrit stål
- Austenitic structure.
- 18-20% chromium, 8-12% nickel.
- Excellent corrosion resistance.
- Good at high temperatures.
430 Rustfrit stål
- Ferritic structure.
- 16-18% chromium, almost no nickel.
- Moderate corrosion resistance.
- Magnetic properties.
Properties Comparison
| Ejendom | 304L | 430 |
|---|
| Indhold af krom | 18-20% | 16-18% |
| Indhold af nikkel | 8-12% | <0.75% |
| Modstandsdygtighed over for korrosion | Høj | Moderat |
| Magnetisk | Nej | Ja |
| Omkostninger | Højere | Lavere |
Heat Treatment Processes for 304L and 430 Stainless Steels
304L rustfrit stål
- Annealing at 1900°F (1040°C).
- Relieves internal stresses.
- Makes the metal more ductile.
430 Rustfrit stål
- Temper rolling or skin passing.
- Improves surface finish and hardness.
- Sub-critical anneal at 1400-1500°F.
Sammenligning
| Ejendom | 304L | 430 |
|---|
| Heat Treatment Method | Udglødning | Temper rolling, Sub-critical anneal |
| Temperaturområde | 1900°F | 1400-1500°F |
| Effect on Material | Relieves stress, increases ductility | Improves finish and hardness |
Mechanical Strength: 304L vs 430 Stainless Steel
304L rustfrit stål
- Tensile strength: 485 MPa
- Yield strength: 170 MPa
- Elongation: 40%
430 Rustfrit stål
- Tensile strength: 450 MPa
- Flydespænding: 310 MPa
- Elongation: 25%
Styrke sammenligning
| Ejendom | 304L | 430 |
|---|
| Trækstyrke | 485 MPa | 450 MPa |
| Udbyttestyrke | 170 MPa | 310 MPa |
| Forlængelse | 40% | 25% |
| Struktur | Austenitisk | Ferritic |
Machining Capabilities of 304L and 430 Stainless Steels
304L rustfrit stål
- Excellent corrosion resistance.
- Weldability is high.
- Harder to machine due to work hardening.
430 Rustfrit stål
- Good corrosion resistance.
- More affordable.
- Easier to machine with higher cutting speeds.
Machining Comparison
| Ejendom | 304L | 430 |
|---|
| Bearbejdelighed | Udfordrende | Let |
| Hærdning af arbejdet | Høj | Lav |
| Skærehastighed | Slower | Faster |
| Værktøjsslid | Højere | Lavere |
Applications: Choosing Between 304L and 430 Stainless Steel
304L rustfrit stål
- Udstyr til fødevareforarbejdning
- Medicinsk udstyr
- Architectural paneling
430 Rustfrit stål
- Automotive trim
- Kitchen utensils
- Hårde hvidevarer
Egnethed til anvendelse
| Anvendelse | 304L | 430 |
|---|
| Food Industry | Fremragende | God |
| Biler | God | Fremragende |
| Cost-sensitive Projects | Moderat | Fremragende |
| Svejste strukturer | Fremragende | Moderat |
304L Stainless vs 430: Which is Better?
Faktorer at overveje
- Modstandsdygtighed over for korrosion
- Mechanical strength
- Omkostninger
- Specific application requirements
304L rustfrit stål
- High corrosion resistance
- Good for welding
- Højere omkostninger
430 Rustfrit stål
- Moderat korrosionsbestandighed
- Magnetiske egenskaber
- Lavere omkostninger
Decision Chart
| Kriterier | 304L | 430 |
|---|
| Modstandsdygtighed over for korrosion | Høj | Moderat |
| Omkostninger | Højere | Lavere |
| Svejsbarhed | Fremragende | Begrænset |
| Anvendelser | Wide range, harsh environments | Cost-effective, mild environments |
Summary Chart of What is the Difference Between 304L and 430 Stainless Steel
| Ejendom | 304L | 430 |
|---|
| Indhold af krom | 18-20% | 16-18% |
| Indhold af nikkel | 8-12% | <0.75% |
| Modstandsdygtighed over for korrosion | Høj | Moderat |
| Svejsbarhed | Fremragende | Moderat |
| Magnetisk | Nej | Ja |
| Omkostninger | Højere | Lavere |
| Typiske anvendelser | Food processing, medical devices, architecture | Automotive, kitchen utensils, appliances |
Konklusion
304L and 430 stainless steels differ in composition, corrosion resistance, and cost. 304L is highly resistant to corrosion, good for welding, and more expensive. 430 is moderately resistant to corrosion, magnetic, and more affordable. Choose based on your application’s specific needs, balancing performance and cost.
