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Stainless steel 430,430F
Stainless steel 430 is a non-hardenable steel containing straight chromium, and belongs to the ferritic group of steels.
Key words:
Stainless steel 430,430F
Classification:
Description
Product introduction
Stainless steel 430 is a non-hardenable steel containing straight chromium, and belongs 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 due to its resistance to nitric acid.
430F stainless steel is usually provided in bar form to be used in automatic screw machines. factory Standard AISI ASTM hot/cold roll stainless steel plate
Technical data
Chemical Composition
| GradeN | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 430 | min. max. |
- 0.12 |
- 1 |
- 1 |
- 0.04 |
- 0.030 |
16 18 |
- | - 0.50 |
- |
| 430F | min. max. |
- 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 | 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) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 430 | 7750 | 200 | 10.4 | 11.0 | 11.4 | 26.1 | 26.3 | 460 | 600 |
| 430F | 7750 | 200 | 10.4 | 11.0 | 11.4 | 26.1 | 26.3 | 460 | 600 |
Grade Specification Comparison
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 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 |
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