Weston Stainless, which is located in Midland, UK, is a reputable manufacturer of quality stainless steel products that provide high-performance and durable solutions for industries. Their Stainless Steel 253 MA Fasteners are produced using AISI 253 MA stainless steel, which is a heat-resistant austenitic grade renowned for its high oxidation resistance, strength, and excellent creep resistance at high temperatures. Used in a wide range of shapes including bolts, nuts, screws, washers, and studs, these fasteners are applied extensively in heat treatment plants, furnaces, power plants, petrochemical plants, and exhaust systems. Their excellent mechanical properties and oxidation resistance qualify them for high-temperature applications.
Stainless Steel 253 MA Fasteners contain 20-22% chromium, 10-12% nickel, 1.4-2.5% silicon, 0.05-0.10% carbon, 0.04-0.06% nitrogen, 0.8% manganese, 0.03% phosphorus, and 0.03% sulfur, exhibiting high oxidation resistance and high-temperature strength. The mechanical properties are tensile strength of 690 MPa, yield strength of 310 MPa, elongation of 40%, and hardness of 95 HRB, guaranteeing stress endurance. The physical properties have a density of 7.8 g/cm³, a melting temperature of 1425-1460°C, and a heat conductivity of 15 W/m·K, which makes them suitable for intense heat conditions.
| 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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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.
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.
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.
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.
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.
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.
Stainless Steel 253 MA Fasteners are used extensively in applications involving high temperature, for example, heat treatment facilities, furnaces, boilers, power generation, and exhaust systems, because of their superior resistance to oxidation and creep. They are critical in petrochemical, cement, and metallurgical processes, where superheat and corrosive conditions necessitate strong and long-lasting fasteners. They are also employed in kiln linings, refractory anchors, and incineration plants to provide structural integrity and long-term performance. They are strong, thermally stable, and resistant to scaling, making them perfect for demanding industrial applications.
Stainless Steel 253 MA Fasteners are provided with Mill Test Certificates (MTC) EN 10204 3.1/3.2, third-party inspection documents, and conformity certificates to ensure quality and industry standards. The fasteners are properly packaged and secured in wooden crates, cartons, or plastic wrapping to avoid damage during shipment. The delivery is handled efficiently through air, sea, or land freight to ensure safe and timely shipping according to customer requirements and project needs.
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