SS 430 is a corrosion and heat resistant ferritic Chromium Steel. It can be polished to appear similar to Chromium plate. The material is magnetic in both annealed and cold rolled tempers.
The alloy can be readily blanked and formed. The material can be resistance welded, brazed, and soldered. SS 430 is resistant to atmospheric corrosion and fresh water, but it not resistant to most salts and sea water. It is resistant to scaling by oxidation up to about 1400°F.
Available Sizes:
SS 430 is available from Hamilton Precision Metals as strip product in thicknesses from 0.001” to 0.050” (0.0254 mm to 1.27 mm) in widths up to 12.0” (304.8 mm). The material conforms to ASTM A240, FED QQS 766, and UNS S43000.
Nominal Composition
| SS 430 NOMINAL COMPOSITION |
| Chromium |
16.3%
|
| Manganese |
0.45%
|
| Silicon |
0.40%
|
| Nickel |
0.2%
|
| Carbon |
0.04%
|
| Iron |
Balance
|
Mechanical Properties
| SS 430 MECHANICAL PROPERTIES |
|
ANNEALED |
COLD ROLLED |
| Ultimate Tensile Strength |
75,000 PSI |
145,000 PSI |
| Yield Strength (0.2% Offset) |
45,000 PSI |
135,000 PSI |
| Elongation in 2” * |
30%
|
1%
|
| Modulus of Elasticity (Tension) |
29 x 106
PSI
|
|
| Poisson’s Ratio |
0.27
|
|
*The measured elongation will be less as thickness decreases to 0.002” and less.
These values may be adjusted by control of process variables – consult HPM for desired values
Physical Properties
| SS 430 PHYSICAL PROPERTIES |
| Density |
0.28 lbs/cu.in. |
| Melting Point (Approx.) |
1425°C |
| Electrical Resistivity @ R.T. |
60 Microhm·cm |
|
Temperature Coefficient of Resistivity (TCR) (0° to 100°C)
|
10.5 x 10-6 /°C
|
| Thermal Conductivity @ 100°C |
26.1 W/m·K
|
| Magnetic Permeability |
800
|
| Magnetic Attraction |
Yes
|
Typical values to guide alloy selection but are not a guarantee of minimum or maximum