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MUKAU FASTENERS, a reliable manufacturer and supplier located in Kinshasa, Congo, specializes in top-notch Stainless Steel 253 MA Nuts designed for outstanding strength, resistance to corrosion, and durability in high temperatures. Crafted from a high-performance austenitic stainless steel alloy that includes chromium, nickel, and molybdenum, these nuts excel in resisting oxidation, stress corrosion cracking, and scaling. The 253 MA grade guarantees lasting mechanical stability even in the toughest industrial settings. MUKAU FASTENERS provides precisely engineered 253 MA Nuts that are perfect for power plants, chemical processing facilities, marine equipment, and offshore structures, ensuring dependable fastening solutions where top performance, durability, and resilience against harsh conditions are crucial.
Stainless Steel 253 MA Nuts are made up of about 21% chromium, 11% nickel, 2% molybdenum, and 0.7% copper, delivering exceptional resistance to corrosion and oxidation. They boast a tensile strength of around 600 MPa, along with high yield strength, excellent ductility, and toughness, which guarantees reliable performance even in extreme temperatures and challenging environments. This alloy effectively resists stress corrosion cracking and scaling while maintaining dimensional stability and mechanical integrity. These nuts are designed to ensure secure fastening, long-term reliability, and remarkable mechanical performance in critical industrial, marine, and chemical applications.
| Specifications | ASTM A193 ASME SA193 / ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
| Standard | DIN, ASTM, BS and all International Standards | Nut Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| 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 Nuts find extensive use in power generation, chemical processing plants, offshore oil and gas structures, marine equipment, and the petrochemical industry, thanks to their ability to withstand high temperatures and provide superior corrosion protection. They are perfect for fastening structural assemblies, boilers, heat exchangers, chimneys, and exhaust systems that operate in oxidizing and chloride-rich environments. The 253 MA grade guarantees durability and long-lasting performance, making them an essential choice for demanding applications.
Mukau fasteners very carefully pack stainless steel 253 MA nuts. Our dedicated team ensures that the walnuts are properly packaged using high quality materials that meet industrial standards. We primarily use eco-friendly wooden boxes, pallets and packaging. This precautionary packaging assures products will remain safe from dirt and dust, preserving their quality during transport and storage Trust Mukau fasteners for reliable and well-packaged stainless steel 253 MA nuts.
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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