Material Notes:
Grade 430 is a ferritic, straight chromium, non-hardenable grade, combining good corrosion resistance and formability characteristics with useful mechanical properties. Its ability to resist nitric acid attack permits its use in specific chemical applications but automotive trim and appliance components represents its largest fields of application.
| 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
(mm/m/°C)
|
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
|
