ASTM JIS GB EN DIN Standard 430 Stainless Steel Sheet with 8K Mirror Finish Cold Rolled and Corrosion Resistant
Price:
US $1.36-2.58 / kg
MOQ:
150 kg
Delivery Time:
Negotiable
Product Description
ASTM JIS GB EN DIN Standard 430 Stainless Steel Sheet
Available in 2B, BA, NO.4, Hairline, and 8K Mirror finishes
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 Finishes | 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 Services | 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 use in automatic screw machines. Grade 434 offers similar properties to grade 430 but features molybdenum content that enhances corrosion resistance.
Chemical Composition
Chemical compositions of grade 430 stainless steels:
| 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 | Rockwell B (HR B) max | 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 | Euronorm No | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|
| 430 | S43000 | 430S17 | 1.4016 | 2320 | SUS 430 |
| 430F | S43020 | - | 1.4104 | 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 | Slightly higher corrosion resistance needed with improved welding and cold forming ability |
| 316 | Much better corrosion resistance needed with improved welding and cold forming ability |
| 3CR12 | Lower corrosion resistance acceptable in cost-critical applications |
Performance 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 resistance achieved in well-polished or buffed conditions. Its pitting and crevice corrosion resistance is comparable to grade 304. Grade 430F, being a high-sulfur free machining grade, offers slightly reduced pitting and crevice corrosion resistance compared to non-free machining grades.
Heat Resistance
Stainless steel grade 430 can resist oxidation up to 870°C (1598°F) in intermittent usage and up to 815°C (1499°F) in continuous usage. The material may become brittle at room temperature after prolonged heating in the 400-600°C (752-1112°F) range, which can be mitigated through annealing.
Heat Treatment
Solution annealing involves heating to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and rapid air-cooling. Sub-critical annealing requires heating to 760-815°C (1400-1499°F) followed by air-cooling or water quenching. This stainless steel cannot be hardened by thermal treatment.
Welding
Welding requires pre-heating at 150-200°C (302-392°F). For embrittlement in welded metal, post-weld annealing at 790-815°C (1454-1499°F) is recommended. Recommended filler rods include grade 430, 308L, 309, or 310 based on application requirements.
Machining
Grade 430 offers better machinability than standard austenitic steels like grade 304, though galling may occur. Lightly drawn bars machine more easily than annealed bars. Grade 430F provides excellent machinability.
Fabrication
The low work hardening rate of grade 430 facilitates easy bending and forming. However, low ductility may limit rigorous operations. Grade 430 wire handles rigorous cold heading well, with sub-critical intermediate annealing potentially required for extreme cold working.
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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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben