Stainless Steel 309S Tubing

Stainless steel 309S is an austenitic chromiumnickel stainless steel with various features. It is a low carbon type of 309 stainless steel specifically developed to be more suitable for welding.

Chemical Composition of SS 309S Tubing

The composition of Stainless steel 309S tubing is crucial for understanding their properties and performance in various industrial applications.

Grade	NI	C	MN	P	S	SI	CR	MO
SS 309S	12.0 - 15.0	>0.08 max	2.0 max	0.045 max	0.030 max	1.0 max	22.0 - 24.0	>0.75 max

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

Mechanical Properties of Stainless steel 309S tubing

The table provides essential information for engineers and manufacturers to assess the integrity and durability of Stainless steel 309S tubing in demanding environments.

Grade	Tensile Strength (ksi)	0.2% Yield Strength (ksi)	Elongation% in 2 inches
309S	70	25	40

Thus, this valuable data on the strength, flexibility, and resilience of stainless steel 309 tubing is crucial for ensuring reliability and longevity.

Advantages of Stainless Steel 309S tubing

Stainless Steel 390S tubing is characterised by several key attributes that make it suitable for various applications:

High Temperature Resistance: 309S stainless steel tubing is high temperature tubing and has very good oxidation resistance.
Excellent Oxidation Resistance: Due to the high chromium and nickel content, SS 309S tubing exhibits excellent oxidation resistance.
Corrosion Resistance: 309S Stainless steel tubing is corrosion in several corrosive environments, such as acidic, alkaline, and saltwater.
Good Weldability: 309S SS tubing is malleable and can be bent into and welded into complex structures and forms.
LongTerm Durability: Stainless steel 309S tubing reduces maintenance and repair time because it can withstand adverse operating conditions for years.

Stainless steel 309S tubing is suitable for several industrial applications because of its unique features.

Uses of Stainless steel 309S tubing

Stainless steel 309S tubing is used across various industries; here are some listed below:

Medical Equipment: Surgical medical scalpels and other instruments, sterilisation PPE and apparatuses all require stainless steel 309S tubing.
Chemical Processing: SS 309S tubing is used in the chemical industry in reactors, piping and storage tanks.
Aerospace Industry: SS 309S tubing is used in aerospace applications, such as aircraft exhaust systems and heat exchangers.
Power Generation: Stainless steel 309S tubing is applied for Boiler tubes, Coal Gasifier Internals, Turbine parts, etc.
Oil and Gas Sector: The SS 309S tubing element is used in refineries for heat exchange, furnace parts and pipes.
Pulp and Paper Industry: The stainless steel 309S tubing is used in the digesters, bleaching equipment and piping.

Stainless steel 309S is a suitable material with a wide application in different industries and production.

Stainless steel 309S is an austenitic chromiumnickel stainless steel with various features. It is a low carbon type of 309 stainless steel specifically developed to be more suitable for welding.

Chemical Composition of SS 309S Tubing

The composition of Stainless steel 309S tubing is crucial for understanding their properties and performance in various industrial applications.

Grade	NI	C	MN	P	S	SI	CR	MO
SS 309S	12.0 - 15.0	>0.08 max	2.0 max	0.045 max	0.030 max	1.0 max	22.0 - 24.0	>0.75 max

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

Mechanical Properties of Stainless steel 309S tubing

The table provides essential information for engineers and manufacturers to assess the integrity and durability of Stainless steel 309S tubing in demanding environments.

Grade	Tensile Strength (ksi)	0.2% Yield Strength (ksi)	Elongation% in 2 inches
309S	70	25	40

Thus, this valuable data on the strength, flexibility, and resilience of stainless steel 309 tubing is crucial for ensuring reliability and longevity.

Advantages of Stainless Steel 309S tubing

Stainless Steel 390S tubing is characterised by several key attributes that make it suitable for various applications:

High Temperature Resistance: 309S stainless steel tubing is high temperature tubing and has very good oxidation resistance.
Excellent Oxidation Resistance: Due to the high chromium and nickel content, SS 309S tubing exhibits excellent oxidation resistance.
Corrosion Resistance: 309S Stainless steel tubing is corrosion in several corrosive environments, such as acidic, alkaline, and saltwater.
Good Weldability: 309S SS tubing is malleable and can be bent into and welded into complex structures and forms.
LongTerm Durability: Stainless steel 309S tubing reduces maintenance and repair time because it can withstand adverse operating conditions for years.

Stainless steel 309S tubing is suitable for several industrial applications because of its unique features.

Uses of Stainless steel 309S tubing

Stainless steel 309S tubing is used across various industries; here are some listed below:

Medical Equipment: Surgical medical scalpels and other instruments, sterilisation PPE and apparatuses all require stainless steel 309S tubing.
Chemical Processing: SS 309S tubing is used in the chemical industry in reactors, piping and storage tanks.
Aerospace Industry: SS 309S tubing is used in aerospace applications, such as aircraft exhaust systems and heat exchangers.
Power Generation: Stainless steel 309S tubing is applied for Boiler tubes, Coal Gasifier Internals, Turbine parts, etc.
Oil and Gas Sector: The SS 309S tubing element is used in refineries for heat exchange, furnace parts and pipes.
Pulp and Paper Industry: The stainless steel 309S tubing is used in the digesters, bleaching equipment and piping.

Stainless steel 309S is a suitable material with a wide application in different industries and production.

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Stainless Steel 309S Tubing FAQ's

309s stainless steel tubing is widely used across a variety of industries due to its excellent corrosion resistance and high-temperature strength. Common uses include tube-type heat exchangers, automotive exhaust systems, and process plant equipment.

Properties such as formability, weldability and machinability make this alloy particularly well-suited for manufacturing intricate parts. Additionally, it offers excellent stress corrosion cracking resistance and toughness across a wide temperature range.

Yes - its chemical composition contains 22–24% chromium, 12–15% nickel, and up to

0.08% carbon which provides superior formability and ductility compared to standard carbon steels. It also has trace elements such as molybdenum, silicon, phosphorus and sulfur that gives this alloy excellent corrosion resistance against various environmental factors such as acids and salt spray.