Njabulo Stainless, located in Cape Town, South Africa, stands out as a top-notch manufacturer and supplier of premium stainless steel products, with a particular focus on Stainless Steel 253 MA fasteners. Known for their precision engineering and remarkable durability, Njabulo Stainless guarantees that each fastener adheres to strict international standards. With a strong dedication to excellence, the company caters to a variety of industries, offering solutions that blend reliability, corrosion resistance, and outstanding performance. Whether it’s for industrial, marine, or chemical applications, Njabulo Stainless provides fasteners built to endure extreme conditions while preserving their structural integrity, making them a trusted ally for clients throughout South Africa and beyond.
Stainless Steel 253 MA fasteners are mainly made up of iron, chromium (21–23%), nickel (11–12%), and molybdenum (0.5–1%), featuring a low carbon content. This austenitic stainless steel alloy is designed for exceptional strength at high temperatures and excellent oxidation resistance. Mechanically, these fasteners showcase impressive tensile strength, yield strength, and creep resistance, ensuring they last under pressure. They maintain their shape even at elevated temperatures and show remarkable resistance to chloride-induced pitting and corrosion. Their blend of toughness and lightweight characteristics makes them perfect for applications that demand long-lasting reliability in tough environments without sacrificing performance or structural integrity.
| 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 |
Contact us to get a quick quote for your requirement.
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 Njabulo Stainless.
Stainless Steel 253 MA fasteners find extensive use in the power generation, petrochemical, and aerospace sectors due to their exceptional high-temperature resistance and corrosion protection. They are perfect for securing components in boilers, heat exchangers, and gas turbines, where durability in extreme conditions is essential. Additionally, they are utilized in marine and chemical processing settings, ensuring structural stability against aggressive corrosion. Their reliability also makes them a great choice for high-performance applications.
©2024 Njabulo Stainless All Rights Reserved.
