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Mirror Polished 8K 430 Stainless Steel Sheet 0.3 - 10.0mm for Laser Cutting Applications
Product Details
| Model NO. | 430 | Shape | Flat |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Thickness Range | 0.3 - 10.0mm | Standard Size | 1000*2000mm, 1219*2438mm, 1500*6000mm |
| Surface Options | 2B, BA, NO.4, Hairline, Mirror 8K | Tensile Strength | 483 MPa Min |
| Yield Strength | 310 MPa Min | Elongation | 22% Min |
| Hardness | 85 HRB Max, 183 HB Max | Density | 7750 Kg/m3 |
| Elastic Modulus | 200 GPa | Thermal Conductivity | 26.1 W/m.K At 100°C |
| Electrical Resistivity | 600 NΩ.m | ||
| Highlight | Mirror Polished 8K Stainless Steel Sheet,0.3 - 10.0mm 430 Stainless Steel Sheet,Laser Cutting SUS430 Stainless Steel Sheet |
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Product Description
Mirror Polished 8K 430 / 1.4016 / SUS430 Stainless Steel Sheet
High-quality mirror polished 8K stainless steel sheets available in thickness range 0.3-10.0mm with laser cutting capabilities.
Product Specifications
Product: 430 Stainless Steel Sheet
Thickness: Cold rolled 0.3-3.0mm, Hot rolled 4.0-10.0mm
Standard Size: Cold rolled 1000×2000mm, 1219×2438mm; Hot rolled 1500×6000mm
Surface: 2B, BA, NO.4, Hairline, Mirror 8K, etc.
Brand: TISCO, JISCO, POSCO, BAOSTEEL
Standard: ASTM A240 / JIS G4305 / EN 10088-2
Other Grades: 201, 202, 301, 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 430, 440, 441, 443, 444, 2205, 2507, etc.
Our Service: Slit Cutting, Surface Processing
430 Stainless Steel Introduction
Stainless steel grade 430 is a non-hardenable steel containing straight chromium, belonging to the ferritic group of steels. Known for its good corrosion resistance and formability, coupled with practical mechanical properties, it can be used in various chemical applications.
Grade 430F stainless steel is typically provided in bar form for automatic screw machines, while grade 434 offers similar properties with enhanced corrosion resistance due to molybdenum content.
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 430 | - 0.12 | - 1 | - 1 | - 0.04 | - 0.030 | 16-18 | - | - 0.50 | - |
| 430F | - 0.12 | - 1.25 | - 1 | - 0.06 | 0.15 - | 16-18 | - | - | - |
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
|---|---|---|---|---|---|
| 430 | 483 | 310 | 22 | 85 | 183 |
| 430F | 552 typical | 379 typical | 25 typical | - | 262 |
Physical Properties
| Grade | Density (kg/m³) | Elastic Modulus (GPa) | Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat (J/kg.K) | Electrical Resistivity (nΩ.m) |
|---|---|---|---|---|---|---|
| 430 | 7750 | 200 | 10.4 | 26.1 | 460 | 600 |
| 430F | 7750 | 200 | 10.4 | 26.1 | 460 | 600 |
Grade Specification Comparison
| Grade | UNS No | British BS | British En | Euronorm No | Euronorm Name | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|---|---|
| 430 | S43000 | 430S17 | 60 | 1.4016 | X8Cr17 | 2320 | SUS 430 |
| 430F | S43020 | - | - | 1.4104 | X12CrMoS17 | 2383 | SUS 430F |
Alternative Grades
| Grade | Reasons for Choosing Alternative |
|---|---|
| 430F | Higher machinability needed in bar product with acceptable reduced corrosion resistance |
| 434 | Better pitting resistance required |
| 304 | Higher corrosion resistance needed with improved welding and cold forming capabilities | 316 | Much better corrosion resistance required with superior welding and cold forming abilities |
| 3CR12 | Lower corrosion resistance acceptable in cost-critical applications |
Technical Characteristics
Corrosion Resistance
All ferritic grades, including stainless steel grade 430, offer excellent stress corrosion cracking resistance. Grade 430 provides good corrosion resistance to numerous substances, with maximum performance in well-polished or buffed condition. Its pitting and crevice corrosion resistance is comparable to grade 304.
Heat Resistance
Stainless steel grade 430 resists oxidation up to 870°C (1598°F) in intermittent usage and up to 815°C (1499°F) in continuous usage. Brittleness may occur at room temperature after prolonged heating in the 400-600°C (752-1112°F) range, which can be resolved through annealing.
Heat Treatment
Solution annealing involves heating to 815-845°C (1499-1553°F), slow furnace cooling to 600°C (1112°F), followed by rapid air-cooling. Sub-critical annealing requires heating to 760-815°C (1400-1499°F) with air-cooling or water quenching. This steel cannot be hardened by thermal treatment.
Welding
Pre-heating at 150-200°C (302-392°F) is required for welding grade 430. Post-weld annealing at 790-815°C (1454-1499°F) can address embrittlement. Recommended filler rods include grade 430, 308L, 309, or 310 based on application requirements.
Machining & Fabrication
Grade 430 offers easier machinability than standard austenitic steels like grade 304, though galling may occur. Lightly drawn bars machine more easily than annealed bars. With low work hardening rate, it facilitates easy bending and forming, though low ductility limits rigorous operations.
Applications
- Dish washer linings
- Refrigerator cabinet panels
- Element supports and fasteners
- Stove trim rings and chimney liners
- Automotive trim and lashing wires
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