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Grade 430 is a ferritic, straight chromium, non-hardenable grade that combines good corrosion resistance and forming properties with useful mechanical properties. Its resistance to nitric acid attack allows it to be used in specific chemical applications, but automotive trim and electrical parts represent its greatest areas of application.
Grade 430F is a free-machining version of this grade, available in bar form for use in automatic screw machines. Grade 434 is a molybdenum-containing version of Grade 430 with the same useful combination of properties. Its molybdenum addition improves corrosion resistance.
ASTM A240/A240M specifies these properties of 430 for use in flat rolled products (plate, sheet and coil). Other products, such as forgings and bars, specify similar, but not necessarily identical, properties in their respective specifications. ASTM A582 specifies a performance grade of 430F for bars.
Product Name | 430 Stainless Steel Bar | |
Grade | 200, 300, 400series, etc | |
Surface | Bright, Polished, Turn smooth(Peeled), Brush, Mill, Pickled, etc | |
Type | Round, Square, Hexagonal, Flat, Angle | |
Specification | Round bar | Diameter: 3mm~800mm |
Hexagonal | Size: 2mm~100mm | |
Square bar | Size: 4mm*4mm~100mm*100mm | |
Flat bar | Thickness: 2mm~100mm, Width: 10mm~500mm | |
Angle bar | Size: 3mm*20mm*20mm~12mm*100mm*100mm | |
Standard | AISI, ASTM, DIN, GB, JIS, SUS, ASTM A276, A484, A479, A580, A582, JIS G4303, JIS G4311, DIN 1654-5, DIN 17440, GB/T 1220 | |
Treatment | Hot rolled, Cold drawn, Annealed, Grinding | |
Trade Terms | EXW, FOB, CFR, CIF | |
| Grade | C | Mn | Si | P | S | Cr |
| 430 | 0.15max | 1max | 1max | 0.04max | 0.03max | min: 12.0 max: 14.0 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength | Elongation | Hardness Brinell |
| 0.2% Proof (MPa) | (% in 50mm) | (HB) | ||
| Annealed * | 655 | 345 | 25 | 241 max |
| 399°F (204°C) | 1600 | 1360 | 12 | 444 |
| 600°F (316°C) | 1580 | 1365 | 14 | 444 |
| 800°F (427°C) | 1620 | 1420 | 10 | 461 |
| 1000°F (538°C) | 1305 | 1095 | 15 | 375 |
| 1099°F (593°C) | 1035 | 810 | 18 | 302 |
| 1202°F (650°C) | 895 | 680 | 20 | 262 |
| * Annealed tensile properties are typical for Condition A of ASTM A276; annealed hardness is the specified maximum. | ||||
Grade 430 is a ferritic, straight chromium, non-hardenable grade that combines good corrosion resistance and forming properties with useful mechanical properties. Its resistance to nitric acid attack allows it to be used in specific chemical applications, but automotive trim and electrical parts represent its greatest areas of application.
Grade 430F is a free-machining version of this grade, available in bar form for use in automatic screw machines. Grade 434 is a molybdenum-containing version of Grade 430 with the same useful combination of properties. Its molybdenum addition improves corrosion resistance.
ASTM A240/A240M specifies these properties of 430 for use in flat rolled products (plate, sheet and coil). Other products, such as forgings and bars, specify similar, but not necessarily identical, properties in their respective specifications. ASTM A582 specifies a performance grade of 430F for bars.
Product Name | 430 Stainless Steel Bar | |
Grade | 200, 300, 400series, etc | |
Surface | Bright, Polished, Turn smooth(Peeled), Brush, Mill, Pickled, etc | |
Type | Round, Square, Hexagonal, Flat, Angle | |
Specification | Round bar | Diameter: 3mm~800mm |
Hexagonal | Size: 2mm~100mm | |
Square bar | Size: 4mm*4mm~100mm*100mm | |
Flat bar | Thickness: 2mm~100mm, Width: 10mm~500mm | |
Angle bar | Size: 3mm*20mm*20mm~12mm*100mm*100mm | |
Standard | AISI, ASTM, DIN, GB, JIS, SUS, ASTM A276, A484, A479, A580, A582, JIS G4303, JIS G4311, DIN 1654-5, DIN 17440, GB/T 1220 | |
Treatment | Hot rolled, Cold drawn, Annealed, Grinding | |
Trade Terms | EXW, FOB, CFR, CIF | |
| Grade | C | Mn | Si | P | S | Cr |
| 430 | 0.15max | 1max | 1max | 0.04max | 0.03max | min: 12.0 max: 14.0 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength | Elongation | Hardness Brinell |
| 0.2% Proof (MPa) | (% in 50mm) | (HB) | ||
| Annealed * | 655 | 345 | 25 | 241 max |
| 399°F (204°C) | 1600 | 1360 | 12 | 444 |
| 600°F (316°C) | 1580 | 1365 | 14 | 444 |
| 800°F (427°C) | 1620 | 1420 | 10 | 461 |
| 1000°F (538°C) | 1305 | 1095 | 15 | 375 |
| 1099°F (593°C) | 1035 | 810 | 18 | 302 |
| 1202°F (650°C) | 895 | 680 | 20 | 262 |
| * Annealed tensile properties are typical for Condition A of ASTM A276; annealed hardness is the specified maximum. | ||||
