Stainless Steel 253Ma Pipes are made from a high-temperature austenitic alloy that contains around 21% chromium, 11% nickel, along with trace amounts of nitrogen, cerium, and silicon. This distinctive blend provides exceptional oxidation resistance, high-temperature strength, and enhanced creep resistance up to 1150°C. In terms of mechanical properties, these pipes showcase excellent tensile and yield strength, superior ductility, and solid structural stability even under prolonged thermal exposure, making them suitable for both oxidizing and reducing environments.
| Specifications | ASTM / ASME A312 / SA312 |
| Seamless Pipes & Tubes Sizes | 1 / 2″ NB – 8″ NB |
| Welded Pipes & Tubes Sizes | 6″ NB – 24″ NB |
| Outer Diameter | 6.0-630mm |
| Schedule | SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS |
| Thickness | 0.3mm – 50 mm |
| Type | Seamless / ERW / Welded/ Fabricated |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End, Treaded |
| Grade | C | Mn | Si | S | P | Fe | Ni | Cr | Ce | N |
|---|---|---|---|---|---|---|---|---|---|---|
| 253 MA | 0.10 max | 0.80 max | 2.0 max | 2.0 max | 0.04 max | Bal | 10.0 – 12.0 | 20.0 – 22.0 | 0.03 – 0.08 | 0.14 – 0.20 |
| Element | Density | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness |
|---|---|---|---|---|---|
| 253 MA | 7.8 g/cm3 | 600 | 40 | 310 | HR B – 95, HB – 217 |
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Stainless Steel 253Ma Pipes are extensively used in high-temperature applications owing to their high oxidation resistance and mechanical strength. They find general applications in furnace components, heat exchangers, boiler tubes, and kiln linings. Moreover, they find applications in petrochemical, power generation, and cement industries where there is a need for extreme heat resistance. Their higher strength and resistance make them applicable in burner nozzles, exhaust ducts, and refinery equipment. With superior weldability and corrosion resistance, 253Ma pipes are critical for uses subjected to high thermal stress, harsh environments, and stringent industrial processes.
High-performance alloy featuring excellent oxidation and corrosion resistance, ideal for high-temperature applications. It offers durability, strength, and reliability in challenging environments.
Custom-engineered for high-temperature and corrosive environments. They combine the alloy’s excellent oxidation and corrosion resistance with precise fabrication techniques for optimal performance and durability.
Designed for high-temperature applications, offering superior oxidation and corrosion resistance. It combines strength and durability with precise welding for reliable performance in harsh conditions.
High-temperature environments, providing excellent oxidation and corrosion resistance. They offer durability and strength, making them suitable for demanding industrial applications.
Excellent high-temperature and corrosion resistance. They combine strength and durability with precision welding, ideal for demanding industrial and high-performance applications.
High-temperature and corrosion resistance with strong, precise welds. They are ideal for industrial applications requiring durability and reliability in harsh environments.
These Stainless Steel 253Ma Pipes find extensive use in high-temperature applications that demand a perfect mix of strength, oxidation resistance, and workability. They are ideal for furnaces, kilns, heat exchangers, power plant components, and thermal processing systems. In petrochemical and refinery operations, you’ll find them in reformer tubes, burners, and heat treatment equipment. They also excel in combustion chambers and stack liners. With their exceptional thermal fatigue resistance, weldability, and durability, Stainless Steel 253Ma Pipes are the go-to choice for industries that require reliable, high-performance materials in extreme heat conditions.







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