Description:
Type430 Stainless Steelis a low carbon ferritic stainless steel which, in mildly corrosive environments or atmospheric exposures, has corrosion resistance approaching that of some nickel-bearing stainless steels. This alloy is oxidation resistant at elevated temperatures. Type 430 is ductile, does not work harden readily, and can be formed using a variety of roll forming or mild stretch bending operations as well as the more common drawing and bending processes. Type 430 is ferromagnetic.

Product Forms:
Stainless Steel Sheet, Stainless Steel Coil, Stainless Steel CoilStrip, Stainless Steel Pipe, Stainless Steel Bar, Stainless Steel Wire.

Typical Applications:
Sinks, sink rims, appliance trim, counter tops, dish washers, range hoods, flatware, architectural uses, roofing, siding and restaurant equipment.

Chemical Composition:

Element	Type 430
Carbon	0.12 max.
Manganese	1.00 max.
Sulfur	0.030 max.
Phosphorus	0.040 max.
Silicon	1.00 max.
Chromium	16.0 – 18.0
Nickel	0.75 max.

Mechanical Properties:

Type	Yield Strength 0.2% offset (KSI)	Tensile Strength (KSI)	% Elongation (2" Gauge length)	Hardness Rockwell
430	30 min.	65 min.	22 min	HRB 89

Physical Properties:

Density (lb./ in^2) @ RT	0.278
Modulus of Elasticity in Tension (psi x 10^6)	29.0
Specific Heat (BTU/o F/lb.)	32 to 212 oF	0.11
Thermal Conductivity (BTU/hr/ft^2/ft)	212oF	13.8
	932oF	15.0
Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F)	32 to 212oF	5.7
	32 to 932oF	6.2
Electrical Resistivity (micro ohms - cm)	at 70oF	60.0
Melting Point Range (oF)	2600 - 2750
Oxidation Resistance - Continuous Service(oF)	1500

Processing:
Type 430 should be annealed at 1450-1550ºF and furnace cooled at a rate of 50°F per hour to 1100°F and air cooled. If the annealing temperature does not exceed 1450°F (790°C), an air cool may be substituted for the furnace cool when annealing thin sections.

Forming:
Type 430 is readily drawn and formed. Its drawing characteristics are similar to those of low-carbon steel, although it is stronger in the annealed condition and will require stronger tooling and increased power.

Welding:
Type 430 is generally considered to be weldable by the common fusion and resistance techniques. Special consideration is required to avoid brittle weld fractures during fabrication. When a weld filler is needed, AWS E/ER 308L and 430 are most often specified. Corrosion: This alloy is resistant to attack in a wide variety of corrosive media including nitric acid, and many organic acids.