In high-heat environments where oxidation, carburization, and thermal fatigue can cripple ordinary stainless steels, SS 253MA Welded Pipes deliver unmatched endurance. As a lean austenitic grade (UNS S30815 / EN 1.4835), 253MA combines 21% chromium with silicon, nitrogen, and cerium for exceptional resistance to scaling up to 1150°C—making Stainless Steel 253MA Welded Pipes the preferred choice for furnace components, heat exchangers, and petrochemical reformers.
These 253MA Welded Pipes offer austenitic formability with ferritic-like cost savings, ensuring longevity and efficiency in demanding operations. Because of their superior thermal stability and corrosion resistance, 253MA Welded Pipes are considered one of the most reliable materials for high-temperature industrial piping systems.
Chemical Properties of SS 253MA Welded Pipes:
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 | 0.10 |
| Manganese (Mn) | — | 0.80 |
| Silicon (Si) | 1.40 | 2.00 |
| Phosphorus (P) | — | 0.040 |
| Sulfur (S) | — | 0.030 |
| Chromium (Cr) | 20.0 | 22.0 |
| Nickel (Ni) | 10.0 | 12.0 |
| Nitrogen (N) | 0.14 | 0.20 |
| Cerium (Ce) | 0.03 | 0.08 |
Mechanical Properties of Stainless Steel 253MA Welded Pipes:
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 550–750 |
| Yield Strength, 0.2% (MPa) | 205–300 |
| Elongation (%) | 35–70 |
| Hardness (HB) | 180–200 |
| Hardness (HRB) | 80–90 |
Physical Properties of 253MA SS Welded Pipes:
| Property | Value |
|---|---|
| Density | 7.8–7.9 g/cm³ |
| Melting Range | 1400–1450°C |
| Thermal Conductivity | 15.5 W/m·K |
| Specific Heat Capacity | 0.50 J/g·K |
| Electrical Resistivity | 0.73 μΩ·m |
| Modulus of Elasticity | 200 GPa |
Product Specifications:
| Parameter | Details |
|---|---|
| Steel Grade | SS 253MA |
| Unit Pipe Length | 3 meter, 6 meter, 9 meter |
| Shape | Round |
| Min. Order Quantity | 200 Kilogram |
Critical Industry Applications
- Cement & Lime: Burner pipes, feed tubes, and cyclones.
- Steel Processing: Annealing furnace tubes and recuperators.
- Power Generation: Biomass and waste-to-energy boiler components.
- Petrochemical: High-temperature heat exchangers and expansion bellows.
Ready to upgrade your thermal systems?
Our range of Stainless Steel 253MA Welded Pipes is available in diameters from 6 mm to 2000 mm, custom-cut and finished to your exact thermal requirements. Order your 253MA Welded Pipes now—get your quote today.
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