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Home > Products > Industrial Metal Pipe > ASTM A312 Pipes > A312 GR 309S
309S Pipes, Stainless Steel Pipes, Low-Carbon Steel Pipes, Corrosion-Resistant Pipes, High-Temperature Applications
Kwality Steelage Pvt. Ltd., a trusted manufacturer, supplier, and exporter based in Mumbai, India, offers premium A312 GR 309S Stainless Steel Pipes. Renowned for their superior corrosion resistance and high-temperature durability, these pipes are specifically engineered for challenging industrial environments. With their low-carbon content, these pipes are highly resistant to intergranular corrosion, making them an ideal choice for applications requiring exceptional performance in oxidizing and reducing conditions.
A312 GR 309S pipes are available in sizes ranging from 1/8 inch to 24 inches in nominal bore (NB) with wall thickness options like SCH 10, SCH 40, SCH 80, and SCH XXS. They are manufactured in seamless and welded forms, with surface finishes including polished, pickled, and passivated options. These pipes are well-suited for high-temperature applications, such as heat exchangers, furnaces, and petrochemical processing. With a tensile strength of 620 MPa and a minimum yield strength of 310 MPa, these pipes ensure consistent performance even under extreme pressure and thermal conditions.
The material composition of A312 GR 309S includes 22-24% chromium and 12-15% nickel, offering excellent resistance to oxidation and scaling at temperatures up to 1000°C. Its low carbon content minimizes carbide precipitation during welding, ensuring enhanced weldability and structural integrity. These features make them ideal for industries like power generation, chemical processing, and marine engineering. The pipes comply with ASTM standards, ensuring compatibility with international quality benchmarks.
Dimensional tolerances for A312 GR 309S Stainless Steel Pipes are meticulously controlled, with outside diameter variations of ±0.25 mm and wall thickness as per ASTM specifications. To ensure high product integrity, these pipes undergo rigorous quality testing, including radiographic, ultrasonic, and hydrostatic examinations. Kwality Steelage Pvt. Ltd. guarantees consistent product quality and timely delivery to customers worldwide, making them a preferred choice for industrial stainless steel solutions.
Backed by state-of-the-art manufacturing facilities and a commitment to excellence, Kwality Steelage Pvt. Ltd. delivers superior A312 GR 309S Stainless Steel Pipes tailored to meet diverse industrial needs. Contact us today to learn more about our extensive range of products and explore customized solutions for your projects.
| Specification | Details |
|---|---|
| Size Range | 1/8 inch to 24 inch NB |
| Wall Thickness Range | SCH 10, SCH 40, SCH 80, SCH XXS |
| Applications | Heat Exchangers, Furnaces, Petrochemicals, Marine Engineering, Power Plants |
| Pipe Type | Seamless, Welded |
| Pipe Form | Round, Square, Rectangular, Hydraulic Pipes |
| Material Composition | 22-24% Chromium, 12-15% Nickel, Carbon, Manganese, Silicon |
| End Type | Plain, Beveled, Threaded |
| Surface Finish | Polished, Pickled, Passivated |
| Length Options | Single Random, Double Random, Custom Lengths |
| Tolerance Type | Outside Diameter (OD) | Wall Thickness (WT) |
|---|---|---|
| Size Tolerance | ±0.25 mm | As per ASTM A312 |
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation (%) |
|---|---|---|---|
| 309S | 310 MPa | 620 MPa | 40% |
| Element | Maximum % Composition |
|---|---|
| Carbon (C) | 0.08% max |
| Manganese (Mn) | 2.00% max |
| Phosphorus (P) | 0.045% max |
| Sulfur (S) | 0.030% max |
| Silicon (Si) | 1.00% max |
| Chromium (Cr) | 22-24% |
| Nickel (Ni) | 12-15% |
| Pipe Type | Price Range (USD) |
|---|---|
| A312 GR 309S Pipes | $3,100 – $4,800 |
A312 GR 309S Stainless Steel Pipes exhibit excellent weldability, thanks to their low-carbon content. To achieve optimal performance, annealing can be performed at temperatures between 1020°C and 1120°C, enhancing their corrosion resistance and mechanical properties. Post-weld heat treatment is not typically required, but stress-relieving treatments can be applied to ensure structural stability for critical applications.
| Feature | GR 309S | GR 309Cb |
|---|---|---|
| Columbium Stabilization | No | Yes |
| Carbon Content | Low | Standard |
| Applications | General High-Temp | High-Stress, High-Temp |
“Partner with Kwality Steelage Pvt. Ltd. for exceptional A312 GR 309S Stainless Steel Pipes that meet your industrial requirements. Get in touch today for tailored solutions and unparalleled quality!”
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