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MUKAU FASTENERS is a top-notch manufacturer and supplier based in Kinshasa, Congo, specializing in high-performance Stainless Steel 253 MA Fasteners. These fasteners are designed for outstanding strength, corrosion resistance, and stability at high temperatures. Crafted from a low-carbon, chromium-nickel-molybdenum austenitic stainless steel, they offer remarkable mechanical durability and oxidation resistance, making them perfect for tough industrial settings. MUKAU FASTENERS is committed to precision manufacturing and follows strict international quality standards, providing 253 MA Fasteners that are essential for power generation, chemical processing, petrochemical industries, and marine applications, where secure fastening and long-lasting reliability are crucial. These fasteners perform exceptionally well even in extreme temperatures, corrosive environments, and under mechanical stress.
Stainless Steel 253 MA Fasteners are composed of about 21% chromium, 11% nickel, 2% molybdenum, and 0.7% copper, which gives them impressive high-temperature strength and outstanding corrosion resistance. They boast a tensile strength of around 600 MPa, along with high yield strength, excellent ductility, and toughness, making them resilient against mechanical stress, vibrations, and thermal cycling. This alloy maintains its shape, resists scaling, and prevents stress corrosion cracking, ensuring dependable performance and long-lasting durability in challenging industrial, chemical, and marine settings. These characteristics make them perfect for demanding fastening tasks.
| 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 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 253 MA Fasteners find their place in power plants, chemical and petrochemical processing, offshore structures, marine engineering, and high-temperature industrial machinery, thanks to their exceptional heat and corrosion resistance. They are particularly suited for securing boilers, heat exchangers, pressure vessels, piping systems, and structural assemblies that face extreme temperatures and harsh conditions. The 253 MA grade guarantees long-term durability, making these fasteners a reliable choice for various applications.
Mukau Fasteners packs Stainless Steel 253 MA Fasteners with the utmost care. Our dedicated team ensures that packaging is properly packaged using high quality materials that meet technical standards. We primarily use wooden boxes, pallets, and eco-friendly packing materials. This meticulous packing process guarantees that the products remain protected from dirt and dust, preserving their quality during transportation and storage.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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