Stainless Steel 409 Circles

SS 409 circles are manufactured from ferritic stainless steel, mainly containing 11-13% chromium and other components such as carbon. This alloy is characterized by good oxidation resistance. It is applied in those cases when moderate corrosion protection and heat resistance are needed.

Chemical Composition of Stainless Steel 409 Circles

The composition of the Stainless Steel 409 Circle is crucial for understanding its properties and performance in various industrial applications.

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 409	0.15 max	1.0 max	1.0 max	0.040 max	0.030 max	11.5 – 13.5	–	0.50 max	–

Thus, this table provides valuable insight into the chemical composition of these circles, highlighting their properties and suitability.

Mechanical Properties of Stainless Steel 409 Circles

The table provides essential information for engineers and manufacturers to assess the integrity and durability of the Stainless Steel 409 Circle in demanding environments.

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
SS 409	65(450)	30(205)	20	96	217

Thus, this valuable data on the Stainless Steel 409 Circle's strength, flexibility, and resilience is crucial for ensuring reliability and longevity.

Advantages of Stainless Steel 409 Circles

These flexible Circles offer numerous benefits for various industrial applications.

Cost-Effectiveness: Stainless Steel 409 Circle is cheaper than austenitic stainless steel like 304 and 316 but offers good corrosion resistance and performance in relative environments.
Good Corrosion Resistance: Stainless Steel 409 Circle provides reasonable protection against oxidation and corrosion in mild to moderately corrosive atmospheres. It is most useful for protecting against oxidation at high temperatures.
High-Temperature Performance: Stainless Steel 409 has good high-temperature mechanical properties and can be used up to temperatures of approximately 650°C (1202°F).
Fabrication and Machining: Stainless Steel 409 Circle is easier to fabricate and machine than austenitic stainless steel. It is easy to form and can be welded and processed to a good extent.
Non-Magnetic Properties: Stainless Steel 409 Circle has relatively low magnetic permeability, which may be useful when magnetic effects are minimized.
Resistance to Carburization: Stainless Steel 409 Circle is resistant to carburisation and thus can be used in areas where carburising conditions are likely to prevail.

Stainless Steel 409 Circle offers several advantages that make it suitable for industrial and commercial applications.

Applications of Stainless Steel 409 Circles

Due to its excellent features, the Stainless Steel 409 Circle is preferred in various industrial applications. Some of the main applications include.

Automotive Exhaust Systems: SS 409 circles are applicable in automotive exhaust systems such as mufflers and catalytic converters since they have good high temperature and oxidation characteristics.
Industrial Heat Exchangers: Stainless Steel 409 Circle is used in heat exchangers and other industrial applications with high temperatures and a moderate corrosive atmosphere.
Architectural Applications: Stainless Steel 409 is used in architectural applications where cost and moderate corrosion resistance are considered crucial, for instance, in trims, facades, and structures.
Agricultural Equipment: Stainless Steel 409 Circle is applied in numerous farming implements and equipment that need protection from oxidation and are to be used in moderately corrosive conditions.
Industrial Equipment: Stainless Steel 409 circles are used in industrial machinery and equipment in high-temperature and slightly corrosive areas.

Stainless Steel 409 Circles are applied across various industries due to their valuable features, which make them versatile.