Njabulo Stainless is a well-respected manufacturer and supplier of Stainless Steel 253MA Tubing, proudly based in Cape Town, South Africa. The company has built a solid reputation for crafting high-performance austenitic stainless steel tubing that excels in oxidation resistance, strength, and creep properties, even at elevated temperatures. Their Stainless Steel 253MA Tubing is designed to perform exceptionally well in heat-intensive and corrosive industrial settings. Thanks to cutting-edge production technology and rigorous quality control, Njabulo Stainless guarantees precision-engineered tubing that meets international standards, ensuring durability, reliability, and efficiency in demanding thermal applications.
The composition of Stainless Steel 253MA Tubing includes iron, chromium (20–22%), nickel (10–12%), silicon (1.4–2%), nitrogen (0.14–0.20%), along with small amounts of rare earth metals and a maximum of 0.10% carbon. This specific blend enhances oxidation resistance and mechanical strength at high temperatures, while the nitrogen content boosts creep strength and ductility. The tubing boasts a tensile strength of about 600–750 MPa and a yield strength of around 300–350 MPa, along with impressive oxidation resistance up to 1150°C.
253 MA Pipe Specification : ASTM A312, A358 / ASME SA312, SA358
253 MA Tube Specification : ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
253 MA Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
253 MA Tube Size : 1/2″ OD to 8″ OD.
Thickness Range : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type : Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
End Protection : Plastic Caps
Outside Finish : 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request
| 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 |
Contact us to get a quick quote for your requirement.
We ensures that all Stainless Steel 253MA Tubing undergoes rigorous testing for quality, performance and durability. Each product is thoroughly inspected, including chemical composition, mechanical properties and corrosion resistance. Certificates of compliance and test reports are issued to meet industry standards, ensure reliability and customer satisfaction.
Stainless Steel 253Ma Seamless Tubing is available in various sizes, including diameters from 1/8″ to 12″ and lengths up to 24 feet. This tubing offers exceptional corrosion resistance and strength at high temperatures. It is ideal for applications requiring robust performance in aggressive environments.
Stainless Steel 253Ma Seamless Tubing is available in various sizes, including diameters from 1/8″ to 12″ and lengths up to 24 feet. This tubing offers exceptional corrosion resistance and strength at high temperatures. It is ideal for applications requiring robust performance in aggressive environments.
Stainless Steel 253Ma Heat Exchanger Tubes are typically available in sizes from 1/2″ to 2″ in diameter. These tubes offer superior resistance to high temperatures and corrosive fluids, making them suitable for heat exchange applications in aggressive environments. Their durability ensures efficient heat transfer and long service life.
Stainless Steel 253Ma Instrumentation Tubing is available in diameters ranging from 1/8″ to 2″ and is known for its precision and durability. This tubing provides excellent resistance to oxidation and corrosion, making it ideal for use in instrumentation and control systems. Its stability ensures accurate measurements and reliable performance.
Stainless Steel 253Ma Boiler Tubes come in sizes from 1/2″ to 3″ in diameter and offer outstanding resistance to high temperatures and corrosion. They are specifically designed for use in boilers and other high-pressure applications, ensuring durability and longevity under extreme conditions
Stainless Steel 253Ma U-Tubes are available in various diameters, typically ranging from 1/2″ to 4″, and are used in applications requiring bent tubing. These tubes provide excellent resistance to heat and corrosion, making them ideal for heat exchangers and other systems involving high temperatures and corrosive substances.
Stainless Steel 253Ma Condenser Tubes are offered in sizes from 1/2″ to 2″ in diameter and are designed to withstand harsh conditions in condenser systems. They provide high resistance to corrosion and temperature fluctuations, ensuring effective performance and durability in thermal management systems.
Stainless Steel 253Ma Fin Tubes are available with various fin heights and diameters, typically ranging from 1/2″ to 4″. These tubes are designed for enhanced heat transfer efficiency in finned tube heat exchangers. Their high resistance to corrosion and thermal stability makes them suitable for demanding applications.
Stainless Steel 253MA Tubing finds its place in various industries that require high-temperature performance and corrosion resistance. It’s perfect for furnace components, heat exchangers, kiln linings, power generation units, and petrochemical processing equipment. Additionally, it plays a crucial role in burner parts, exhaust systems, and thermal treatment plants where oxidation resistance and mechanical stability are vital. Its remarkable combination of high-temperature strength, oxidation resistance, and structural reliability makes 253MA tubing the go-to choice for extreme industrial heat applications.
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