High-performance stainless steel 409 pipes from Vinit Stainless, a reputable manufacturer and supplier in Chennai, India, are made to last and be cost-effective in conditions that are both mildly corrosive and hot. Because of its exceptional weldability and strong resistance to oxidation and corrosion, ferritic stainless steel SS 409 is a popular choice for industrial and automotive applications. Vinit Stainless guarantees that all 409 pipes are available in a range of sizes, wall thicknesses, and finishes and satisfy international quality standards. Exhaust systems, heat exchangers, and structural applications where strength and heat resistance are essential frequently use our SS 409 pipes.
With trace amounts of carbon (maximum 0.08%), manganese, silicon, and titanium for stabilisation, stainless steel 409 pipes normally contain 10.5–11.75% chromium. Although heat treatment cannot harden this ferritic alloy, it has good formability and a moderate resistance to corrosion. A yield strength of roughly 170 MPa and a tensile strength of 380–620 MPa are provided by SS 409 pipes. Up to 675°C, the alloy resists oxidation and functions well at moderate temperatures. It is a sensible option for high-temperature structural and exhaust-related applications due to its enhanced weldability and affordability.
| Item | Stainless Steel 409 Pipe |
| Standard | GB, AISI, ASTM, ASME, EN, BS, DIN, JIS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Outer Diameter Size | SEAMLESS – 1/2″ NB TO 18″ NB WELDED / ERW- 1″ NB TO 16″ NB EFW – 8″ NB TO 110″ NB |
| Form | Round Pipes, Square Pipes, Rectangular Pipe, “U” Shape Pipes, Hydraulic Pipes |
| Wall Thickness | Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness) |
| Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size End: Plain End, Beveled End, Treaded |
| Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
| Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 409 | Min | – | – | – | – | – | 10.5 | – | – | – |
| max | 0.03 | 1.00 | 1.00 | 0.04 | 0.02 | 11.7 | – | 0.5 | – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) | Brinell (HB) | ||||
| 409 | 380 | 170 | 20 | 88 | 0.5t |
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Stainless Steel 409 is a ferritic alloy known for its high resistance to oxidation and corrosion. Commonly used in automotive exhaust systems and industrial applications, it offers good strength and durability.
Stainless Steel 409 seamless pipe features high resistance to oxidation and corrosion, making it ideal for exhaust systems and industrial applications. Its seamless construction provides superior strength and reliability.
Stainless Steel 409 welded pipe combines high oxidation and corrosion resistance with durability. It’s commonly used in automotive exhaust systems and industrial applications, offering strength through its welded construction.
Stainless Steel 409 ERW (Electric Resistance Welded) pipe offers excellent resistance to corrosion and oxidation. It’s used in automotive and industrial applications, featuring strong welds and good mechanical properties.
Stainless Steel 409 EFW (Electric Fusion Welded) pipe provides excellent corrosion and oxidation resistance. Ideal for automotive and industrial uses, it features strong, uniform welds and high durability.
Stainless Steel 409 fabricated pipe is engineered for strength and durability, offering excellent resistance to oxidation and corrosion. It’s commonly used in customized applications, including exhaust systems and industrial components.
In automotive exhaust systems, where resistance to heat, corrosion, and oxidation is crucial, stainless steel 409 pipes are frequently utilised. They are also appropriate for manifold tubing, tailpipes, catalytic converters, and mufflers due to their superior weldability and thermal characteristics. Heat exchangers, agricultural machinery, chimneys, industrial ventilation systems, and food processing facilities are among the applications for SS 409 pipes outside of the automotive industry. The alloy is perfect for components exposed to combustion gases or thermal cycling because it works well in conditions with high thermal stress and moderate corrosive exposure. It is also appealing for structural and general engineering applications due to its strength and affordability.
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