Grade 430 (UNS S43000) stainless steel
Feb 02, 2026
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Composition
The chemical compositions of various elements of grade 430 stainless steels are tabulated below.
Table 1 – Chemical compositions of grade 430 stainless steels
|
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
The mechanical properties for grade 430 stainless steels are listed in the table below.
Table 2 - Mechanical properties of grade 430 stainless steels
|
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
The following table outlines the physical properties of grade 430 stainless steels.
Table 3 - Physical properties of grade 430 stainless steels in the annealed condition
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion |
Thermal Conductivity |
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 |
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