Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
430 | min. max. | - 0.12 | - 1.00 | - 1.00 | - 0.040 | - 0.030 | 16.0 18.0 | - | - 0.75 | - |
430F | min. max. | - 0.12 | - 1.25 | - 1.00 | - 0.06 | 0.15 - | 16.0 18.0 | - | - | - |
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 | 450 | 205 | 22 | 89 | 183 |
430F | 552 typical | 379 typical | 25 typical | - | 262 |
Physical Properties
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nW.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 | 23.9 | 26.0 | 460 | 600 |
430F | 7750 | 200 | 10.4 | 11.0 | 11.4 | 26.1 | 26.3 | 460 | 600 |
Possible Alternative Grades
In the table below are a list of possible alternative grades to Grade 430.
| Reason it may be chosen instead of 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, together with greatly improved ability to be welded and cold formed |
3CR12 | A lower corrosion resistance is acceptable in a cost-critical application |
