Akor Stainless is a reputable manufacturer and supplier of Stainless Steel 253 MA Fasteners, proudly based in Abuja, Nigeria. They specialize in high-performance fastening solutions that can handle extreme heat, oxidation, and corrosion. SS 253 MA is a top-notch austenitic stainless steel, celebrated for its impressive strength and ability to resist oxidation at temperatures up to 1150°C. Akor Stainless guarantees that each fastener is meticulously engineered to meet international standards, ensuring exceptional durability and precise dimensions. These fasteners find their place in industries like petrochemical, furnace, and power generation, where reliability under high thermal and mechanical stress is essential.
When it comes to composition and mechanical properties, Stainless Steel 253 MA Fasteners are made up of 20–22% chromium, 10–12% nickel, 0.05–0.10% carbon, along with small amounts of nitrogen, silicon, and rare earth metals to boost oxidation resistance. This alloy boasts a tensile strength of around 620 MPa, a yield strength of 310 MPa, and an elongation of 40%. SS 253 MA is known for its outstanding resistance to scaling, carburization, and creep at high temperatures. It strikes a perfect balance between high mechanical strength and good formability and weldability, ensuring long-lasting stability in challenging, high-temperature, and oxidizing environments.
| Specifications | ASTM A193 ASME SA193 / ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
| Standard | DIN, ASTM, BS and all International Standards |
| Bolts Size | 3 mm to 200 mm | Custom Sizes |
| Nut Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Screw Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Machine Screws Size | M1.6 – M12 | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Fasteners Type | Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts,Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw |
| Grade | C | Mn | Si | S | Ce | Ni | Cr | P |
| 253 MA | 0.05 – 0.10 | 0.80 max | 1.40 – 2 | 0.030 max | 0.03 – 0.08 | 10 – 12 | 20 – 22 | 0.040 max |
|
Tensile Str (MPa) min |
Yield Str 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|
Rockwell B (HR B) max |
Brinell (HB) max |
|||
|
600 |
310 |
40 |
95 |
217 |
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Stainless Steel 253 MA nuts offer exceptional corrosion resistance, especially in high-temperature environments. Common sizes range from M6 to M64, with varying dimensions according to industry standards. These nuts are ideal for applications requiring resistance to oxidative and carburizing environments.
Stainless Steel 253 MA stud bolts provide excellent corrosion resistance and high-temperature stability. They are typically available in sizes ranging from M6 to M30 and lengths from 50 mm to 300 mm. They are used in high-stress, high-temperature applications where durability is crucial.
Stainless Steel 253 MA bolts resist corrosion and maintain strength at elevated temperatures. They are commonly available in sizes from M6 to M100, with lengths varying from 20 mm to 200 mm. It is ideal for high-temperature and corrosive environments.
Stainless Steel 253 MA threaded rods offer superior corrosion resistance and high-temperature performance. Standard sizes include diameters from M6 to M30 and lengths up to 1000 mm. Suitable for heavy-duty applications where reliable performance is essential.
Stainless Steel 253 MA screws provide robust corrosion resistance, particularly in harsh environments. Sizes typically range from M4 to M20, with lengths from 10 mm to 150 mm. They are used in applications requiring high-temperature strength and durability.
Stainless Steel 253 MA washers exhibit excellent corrosion resistance and high-temperature endurance. They are generally available in diameters from 6 mm to 100 mm, varying thicknesses according to specific requirements. It is essential for providing a reliable sealing surface and load distribution.
A high-performance fastener designed for use in very high-temperature applications and characterized by excellent oxidation resistance and outstanding strength. These fasteners are tough, dependable, and meet industry standards of performance. Their quality is enhanced through Positive Material Identification testing, timely deliveries, and secure packaging-all in all making them highly suitable for harsh industrial environments at Akor Stainless.
Stainless Steel 253 MA Fasteners are commonly utilized in scenarios that demand high strength and oxidation resistance at elevated temperatures. They’re perfect for furnace components, heat treatment equipment, power plant boilers, and petrochemical reactors. In the metallurgical sector, you’ll find them in burner parts, heat exchangers, and conveyor systems. These fasteners are also well-suited for cement kilns, gas turbines, and thermal processing units. Their remarkable ability to endure thermal cycling, scaling, and mechanical stress makes them a reliable choice for fastening assemblies in high-temperature and corrosive environments across various industrial and engineering applications.
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