Harsh Metalloys, a well-respected manufacturer and supplier located in Mumbai, India, specializes in high-quality Stainless Steel 409 Tubing. This tubing is celebrated for its impressive oxidation resistance and affordability. SS 409 is a ferritic stainless steel that’s commonly used in automotive and industrial exhaust systems, thanks to its strong resistance to high-temperature corrosion. Produced in accordance with ASTM A312 and other global standards, these tubes come in a variety of sizes and thicknesses, ensuring dependable performance in both thermal and mildly corrosive settings. Harsh Metalloys takes pride in delivering precise dimensions and a smooth surface finish, making SS 409 tubing a top choice for exhaust components, heat exchangers, and industrial ducting.
Stainless Steel 409 Tubing is made up of about 10.5–11.75% Chromium, with a very low Carbon content (≤ 0.08%) and some Titanium added for stabilization. This ferritic stainless steel provides good oxidation resistance at temperatures reaching up to 650°C. It boasts moderate tensile strength, typically around 450 MPa, and good ductility, allowing for elongation of up to 20%. The addition of titanium helps prevent carbide precipitation, which improves weldability and corrosion resistance after welding. While SS 409 tubing can’t be hardened through heat treatment, it can be easily formed and fabricated for a wide range of industrial applications.
Specifications : ASTM A731, A268 / ASME SA731, SA268
Dimensions : ASTM, ASME and API
Size : 1/2″ NB to 24″ NB
Type : Seamless, Welded, EFW, ERW, Fabricated
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Form : Round Pipes, Square Pipes, Rectangular Pipes, Oval Pipes, Hydraulic Pipe, etc.
End : Plain End, Treaded, Beveled End
Length : Single Random, Double Random & Cut Length. (Custom Sizes Available as per customers requirement)
| Grade | C | Ni | Si | S | Mn | P | Cr | Ti | |
| SS 409 | min. | – | – | – | – | – | – | 10.5 | 6x C |
| max. | 0.08 | 0.5 | 1.00 | 0.045 | 1.00 | 0.045 | 11.75 | 0.75 | |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Rockwell B (HRB) max | Brinell (HB) max |
| 450 | 240 | 25 | 75 | 131 |
Contact us to get a quick quote for your requirement.
We ensures that its stainless steel 409 tubing is rigorously tested to meet industry standards. Each batch goes through mechanical, chemical and dimensional testing, including tensile, hardness and corrosion resistance testing. Certificates of compliance, including Mill Test Certificates (MTC), have been issued to ensure demand and quality of materials used.
409 seamless tubing is known for its impressive strength and thermal stability, making it a great choice for automotive exhaust systems, industrial piping, and any application that requires resistance to corrosion at high temperatures.
409 welded tubing is a budget-friendly option that offers solid performance and good weldability. It’s commonly found in automotive, construction, and exhaust applications where moderate corrosion and oxidation resistance are needed.
409 heat exchanger tubes are designed to provide excellent thermal conductivity and oxidation resistance, making them perfect for heating, ventilation, and industrial systems that operate under moderate temperatures and corrosive conditions.
409 instrumentation tubing is valued for its formability and corrosion resistance, making it suitable for fluid transfer, control systems, and measurement equipment in environments that are mildly corrosive and high in temperature.
409 boiler tubes are built for durability and oxidation resistance, which makes them ideal for steam and hot water boilers in industrial settings that are moderately corrosive and high-heat.
409 U-tubes are designed for efficient heat transfer in tight spaces, and they’re widely used in condensers and heat exchangers that are exposed to high temperatures and mild corrosion.
409 condenser tubes excel in heat transfer and corrosion resistance, making them perfect for HVAC systems, power generation, and chemical processing equipment that deal with moderate heat and fluid exposure.
409 fin tubes are designed to increase surface area for better heat exchange, and they’re commonly used in air coolers, condensers, and industrial heat recovery systems that operate in oxidizing environments.
Stainless Steel 409 Tubing is a popular choice for automotive exhaust systems, mufflers, catalytic converters, and heat exchangers, thanks to its impressive resistance to high-temperature oxidation and its affordability. You’ll also find it in industrial furnace components, HVAC ducting, and chemical processing equipment that face mild corrosive conditions. Its excellent weldability and formability make it ideal for custom fabrication and replacement parts in exhaust and thermal systems. SS 409 tubing is often the go-to option when you need a balance of moderate corrosion resistance and heat resistance, making it a smart and economical pick for the automotive, industrial, and construction industries.
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