Harsh Metalloys, located in Mumbai, India, is a leading manufacturer and supplier of high-quality Stainless Steel 446 Tubing, designed to perform under extreme temperature and corrosive conditions. Grade 446 is a high-chromium ferritic stainless steel known for its excellent resistance to oxidation, sulfidation, and scaling at elevated temperatures. Our 446 tubes are available in seamless and welded forms, produced as per international standards like ASTM A268. Harsh Metalloys supplies 446 tubing to industries such as petrochemical, heat treatment, power generation, and furnace manufacturing, offering reliable solutions for high-temperature applications and aggressive industrial environments.
| Specifications | : | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790 |
| Dimensions | : | ASTM, ASME and API |
| Standards | : | GB/T 14975-2002, GB/T 14976-2002, GB 13296-91, API, ASTM A213, ASTM A312, ASTM A269, JIS G3459, JIS G3463, JIS G3448, DIN17458 |
| 446 Pipes & Tubes | : | 1/2″ NB – 24″ NB |
| ERW 446 Pipes & Tubes | : | 1/2″ NB – 24″ NB |
| EFW 446 Pipes & Tubes | : | 6″ NB – 100″ NB |
| Tubing Size | : | 1/8″NB TO 30″NB IN |
| Specialized in | : | Large Diameter Size |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | : | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | Min | – | – | – | – | – | 23.00 | – | – | 0.10 |
| max | 0.2 | 1.5 | 0.75 | 0.040 | 0.030 | 30.00 | – | 0.50 | 0.25 |
| Density | 7.5 g/cm3 |
| Melting Point | 1510 °C (2750 °F) |
| Tensile Strength | Psi – 75,000 , MPa – 485 |
| Yield Strength (0.2%Offset) | Psi – 40,000 , MPa – 275 |
| Elongation | 20 % |
Contact us to get a quick quote for your requirement.
We rigorously tested to ensure unparalleled quality and performance. Each product is certified to meet international standards, including ISO and ASTM specifications. Advanced testing methods, such as fluid stability, ultrasonic, and corrosion resistance testing, ensure reliability, customer satisfaction and durability
The 446 seamless tubing is known for its outstanding resistance to oxidation and corrosion, especially at high temperatures. It’s perfect for applications in heat treatment, furnaces, and chemical processing environments.
When it comes to 446 welded tubing, you can count on its robust, corrosion-resistant performance in high-temperature and mildly corrosive settings. It’s commonly used in exhaust systems, furnaces, and heat exchangers.
The 446 heat exchanger tubes are designed to resist scaling and oxidation even at elevated temperatures, making them ideal for thermal systems found in power plants, chemical industries, and refineries.
For high-temperature corrosive environments, the 446 instrumentation tubing delivers reliable performance. It’s typically used in control systems across petrochemical, thermal, and industrial process sectors.
The 446 boiler tubes are built to provide excellent thermal stability and oxidation resistance, making them suitable for boilers, superheaters, and heat recovery systems in power plants.
With the 446 U-tubes, you get efficient thermal transfer and corrosion resistance, which are essential for compact heat exchangers and boiler systems that operate under high temperatures.
The 446 condenser tubes excel in corrosion resistance and thermal performance, especially in aggressive environments. They’re ideal for both air-cooled and water-cooled condensers in power and chemical plants.
Finally, the 446 fin tubes are designed to boost heat transfer efficiency while resisting oxidation, making them perfect for air heaters, economizers, and heat recovery units in high-temperature operations.
Stainless Steel 446 Tubing is a top choice for environments that experience high temperatures and are prone to oxidation. You’ll often find it in heat exchangers, furnace components, radiant tubes, and exhaust systems, making it a favorite in fields like metallurgy, thermal processing, petrochemicals, and power generation. Its remarkable ability to resist oxidation, sulfidation, and scaling means it’s perfect for applications involving flue gas, combustion chambers, and kilns. Plus, it’s commonly used in boiler tubes and incinerator parts where there’s a lot of heat and corrosive gases. With 446 tubing, you can expect a long service life and minimal maintenance, even in the toughest conditions.
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