Aditya Stainless, a well-respected manufacturer and supplier located in Kolkata, India, specializes in high-quality Stainless Steel 446 Tubing, crafted specifically for demanding high-temperature and corrosive industrial settings. This material is celebrated for its remarkable resistance to oxidation, sulfidation, and scaling. As a ferritic alloy, Stainless Steel 446 excels in thermal cycling conditions. Aditya Stainless is committed to precision manufacturing, ensuring dimensional accuracy and adherence to international quality standards. These tubes are extensively utilized in the petrochemical, furnace, power generation, and thermal processing sectors, where durability, thermal resistance, and corrosion protection are crucial for long-lasting operational efficiency and structural integrity.
Stainless Steel 446 Tubing mainly consists of chromium (23–27%), carbon (≤0.20%), along with small amounts of manganese, silicon, sulfur, and nickel. The high chromium content provides exceptional oxidation and corrosion resistance at elevated temperatures. Its mechanical properties include a tensile strength ranging from 485–620 MPa, a yield strength of about 275 MPa, and an elongation of 20–25%. Although the ferritic structure may limit toughness at cryogenic temperatures, it delivers outstanding performance under thermal fatigue and scaling conditions, making it ideal for high-heat and corrosive applications in industrial-grade tubing.
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 % |
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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
Highly resistant to oxidation and corrosion, Stainless Steel 446 Seamless Tubing is used in high-temperature environments. It comes in various sizes, typically ranging from 1/8 inch to 12 inches in diameter and up to 60 feet in length, ensuring strength and durability without welds.
Offering excellent corrosion resistance, Stainless Steel 446 Welded Tubing is used where cost-effectiveness is key. Available in diameters from 1/4 inch to 8 inches and lengths up to 20 feet, it is ideal for general industrial applications and is welded for a more affordable solution
With superior resistance to high temperatures and corrosion, Stainless Steel 446 Heat Exchanger Tubes are designed for heat exchange systems. Typically available in diameters from 1/2 inch to 4 inches and custom lengths, they ensure efficient thermal transfer and durability under extreme conditions.
Offering excellent oxidation resistance, Stainless Steel 446 Instrumentation Tubing is used in precise measurement systems. Commonly found in sizes from 1/8 inch to 2 inches in diameter, it provides reliability and accuracy in high-temperature and high-pressure environments.
Known for its high corrosion resistance, Stainless Steel 446 Boiler Tubes are designed to withstand high-pressure and temperature in boilers. Typically available in diameters from 1 inch to 5 inches and lengths up to 30 feet, they are essential for reliable boiler operation.
Featuring excellent resistance to oxidation and corrosion, Stainless Steel 446 U-Tubes are used in compact heat exchangers. They generally come in diameters from 1/2 inch to 3 inches, with customizable lengths and bends to fit specific heat exchanger designs
Stainless Steel 446 Condenser Tubes are highly resistant to high-temperature corrosion. Available in sizes from 1/4 inch to 6 inches in diameter and varying lengths, these tubes are used in condenser systems to handle heat and corrosion effectively.
Offering exceptional corrosion and oxidation resistance, Stainless Steel 446 Fin Tubes enhance heat transfer efficiency. Typically available in diameters from 1/2 inch to 3 inches with fins of various lengths and configurations, they are used in heat exchangers and cooling systems.
Stainless Steel 446 Tubing is commonly found in industrial furnaces, recuperators, heat treatment facilities, and thermal oxidizers, thanks to its excellent resistance to scaling, sulfidation, and thermal fatigue. It’s also well-suited for use in petrochemical reactors, burner assemblies, incinerators, and waste heat recovery systems, where high temperatures and corrosive gases are prevalent. In power generation and cement plants, 446 tubing is utilized in superheaters and reheaters. Additionally, it plays a role in exhaust manifolds, ensuring reliable performance in various demanding environments.
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