Luois Metals, located in Houston, USA, is a reliable manufacturer and supplier of high-performance Stainless Steel 253MA Hex Bars, designed to excel in high-temperature and oxidation-heavy environments. Renowned for its impressive strength and oxidation resistance up to 1150°C (2100°F), 253MA is an austenitic stainless steel that skillfully balances heat resistance, creep strength, and ease of fabrication. Luois Metals provides 253MA hex bars with precise dimensions, perfect for applications in furnace components, power plants, and petrochemical processing. With rigorous quality control and strict adherence to ASTM standards, our 253MA hex bars are built to meet the toughest demands.
Stainless Steel 253MA Hex Bars are mainly made up of iron, 21% chromium, and 11% nickel, along with a touch of silicon (~1.7%), cerium, and nitrogen to boost high-temperature performance. This distinctive composition grants the alloy remarkable oxidation resistance, particularly under cyclic conditions. It typically boasts a yield strength of 310 MPa and a tensile strength of up to 680 MPa, along with excellent creep resistance and structural stability at high temperatures. The alloy also offers good weldability and formability, making it a great choice for fabricated assemblies that face extreme thermal stresses and oxidation.
Specification : EN, DIN, JIS, ASTM, BS, ASME, AISI
Standard Specification : ASTM A276, A479 / ASME SA276, SA479
Size : 15NB to 150NB IN
Diameter : 3.17mm to 350mm diameter
Length : 100 mm to 3000 mm Long & Above
Tolerance : H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc
Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
Condition : Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished
| Grade | C | Mn | Si | S | N | Cr | Ni |
| 253 MA | 0.05 – 0.1 | 0.8 min | 1.1 – 2.0 | 0.03 min | 0.14 – 0.2 | 20 – 22 | 10 – 12 |
| Element | Density | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 253 MA | 7.8 g/cm3 | Psi – 87,000, MPa – 600 | Psi – 45,000, MPa – 310 | 40 % |
| STANDARD | WERKSTOFF NR. | UNS | EN | SS |
| 253 MA | 1.4835 | S30815 | X9CrNiSiNCe21-11-2 | 2368 |
253MA Stainless Steel Hex Bars find extensive use in industries that demand high thermal strength, oxidation resistance, and structural integrity at elevated temperatures. Key sectors include heat treatment, petrochemical, cement, power generation, and industrial furnaces. Common components made from this material include radiant tubes, burner nozzles, recuperators, heat exchangers, and conveyor systems within furnaces and reactors. Its ability to resist carburization and thermal fatigue makes it perfect for cyclic operations in combustion chambers and exhaust systems. Plus, with its hexagonal shape, 253MA hex bars ensure secure mechanical connections.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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