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Cold Rolled 430 Stainless Steel Sheet with Bright Surface and Corrosion Resistance for Industrial Applications
Product Details
| Model NO. | 430 | Shape | Flat |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Specification | 1220*2440, 1500*3000, 1500*6000, 2000*6000mm | Thickness | Cold Rolled 0.3 - 3.0mm Hot Rolled 3.0 - 10.0mm |
| Standard Size | Cold Rolled 1000*2000mm 1219*2438mm Hot Rolled 1500*6000mm | Surface | 2B BA NO.4 Hailrline Mirror 8K .etc |
| Tensile Strength | 483 MPa Min | Yield Strength | 310 MPa Min |
| Elongation | 22% Min | Hardness | Rockwell B 85 Max, Brinell 183 Max |
| Density | 7750 Kg/m3 | Elastic Modulus | 200 GPa |
| Thermal Conductivity | 26.1 W/m.K At 100°C | ||
| Highlight | Cold Rolled Stainless Steel Sheet,Bright Surface Stainless Steel Plate,Corrosion Resistant 430 Stainless Steel |
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Product Description
Stainless Steel Sheet / Stainless Steel Plate Grade AISI430 / 1.4016 / S43000
Products: 430 Stainless Steel Sheet
Thickness: Cold rolled 0.3 - 3.0mm, Hot rolled 3.0 - 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
Introduction of 430 Stainless Steel
Stainless steel grade 430 is a non-hardenable steel containing straight chromium, belonging to the ferritic group of steels. This steel is known for its good corrosion resistance and formability, coupled with practical mechanical properties. It can be used in certain chemical applications. Grade 430F stainless steel is typically provided in bar form for use in automatic screw machines. Grade 434 has similar properties to grade 430, although it is a molybdenum-bearing version that enhances corrosion resistance.
Chemical Composition
The chemical compositions of various elements 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 | 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) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (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 | Old British BS | Old 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 |
Possible Alternative Grades
| Grade | Reasons for choosing 430 |
|---|---|
| 430F | Higher machinability than 430 is needed in bar product, and reduced corrosion resistance is acceptable |
| 434 | Better pitting resistance is required |
| 304 | Slightly higher corrosion resistance is needed, together with greatly improved ability to be welded and cold formed |
| 316 | Much better corrosion resistance is needed, coupled with greatly improved ability to be welded and cold formed |
| 3CR12 | Lower corrosion resistance is acceptable in a cost-critical application |
Corrosion Resistance
All ferritic grades, such as stainless steel grade 430, have excellent stress corrosion cracking resistance. Grade 430 has good corrosion resistance to numerous substances, with maximum corrosion resistance achieved in well-polished or buffed condition. Its pitting and crevice corrosion resistance is quite similar to that of grade 304. 430F is a high-sulfur free machining grade, and therefore the resistance to pitting and crevice corrosion is comparatively lesser than non-free machining grades.
Heat Resistance
Stainless steel grade 430 is capable of resisting oxidation up to 870°C (1598°F) in intermittent usage, and up to 815°C (1499°F) in continuous usage. At room temperature, it has the tendency to become brittle, especially when heated for extended periods in the 400-600°C (752-1112°F) range. This issue can be overcome with proper annealing.
Heat Treatment
Solution annealing can be performed by heating stainless steel grade 430 to 815-845°C (1499-1553°F), followed by slow furnace cooling to 600°C (1112°F) and quick air-cooling. Slow cooling between 540 and 400°C (1004 and 752°F) tends to cause embrittlement. For sub-critical annealing, heating should be performed to 760-815°C (1400-1499°F), followed by air-cooling or water quenching. This stainless steel cannot be hardened by thermal treatment.
Welding
To perform any welding, stainless steel grade 430 must be pre-heated at 150-200°C (302-392°F). In case of embrittlement in the welded metal, the area can be post-weld annealed at 790-815°C (1454-1499°F), though grain refinement will not occur. It is recommended to use grade 430, 308L, 309, or 310 filler rods based on the application requirements.
Machining
The machinability of stainless steel grade 430 is significantly easier than standard austenitic steels such as grade 304, though galling may occur. Lightly drawn bars are easier to machine than bars in the annealed condition. Grade 430F is specifically designed for easy machining applications.
Fabrication
Stainless steel grade 430 has a low work hardening rate which enables easy bending and forming. The low ductility rate, however, makes it difficult to perform very rigorous operations. Grade 430 wire can handle rigorous cold heading, and sub-critical intermediate annealing may be required for extreme cold working applications.
Applications of 430 Stainless Steel
- Dish washer linings
- Refrigerator cabinet panels
- Element supports and fasteners
- Stove trim rings and chimney liners
- Automotive trim and lashing wires
Product Photos
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