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MUKAU FASTENERS is a well-respected manufacturer and supplier based in Kinshasa, Congo, specializing in high-performance Stainless Steel 253 MA Bolts designed to withstand extreme corrosion and high temperatures. Crafted from a cutting-edge austenitic stainless steel alloy that includes chromium, nickel, and molybdenum, these bolts are perfect for tough industrial settings. The 253 MA Bolts excel in resisting oxidation, stress corrosion cracking, and high-temperature scaling. MUKAU FASTENERS is committed to precision manufacturing and upholding international standards, ensuring that their bolts deliver long-lasting reliability and mechanical strength. These fasteners are commonly found in power plants, chemical processing facilities, marine applications, and offshore structures where durability is essential.
Stainless Steel 253 MA Bolts are made up of about 21% chromium, 11% nickel, 2% molybdenum, and 0.7% copper, which boosts their corrosion resistance and stability at high temperatures. They have a tensile strength of roughly 600 MPa, along with impressive yield strength, ductility, and toughness. This alloy remains mechanically stable in oxidizing and chloride-rich environments, effectively resisting stress corrosion cracking and scaling even at elevated temperatures. These bolts are built for long-lasting performance, dimensional stability, and dependable fastening in demanding industrial conditions, making them ideal for critical applications that involve high temperatures and corrosive 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 |
| 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 Bolts find extensive use in power generation, chemical processing plants, offshore oil and gas structures, petrochemical industries, and marine equipment, thanks to their exceptional resistance to corrosion and heat. They are particularly suited for boilers, heat exchangers, chimneys, exhaust systems, and structural assemblies that operate under continuous high temperatures and harsh chemical conditions. The alloy’s ability to resist scaling and stress corrosion cracking guarantees durability, making these bolts a reliable choice for challenging applications.
Mukau fasteners very carefully pack stainless steel 253 MA bolts. Our dedicated team ensures that bolts are fastened with high quality materials that meet industrial standards. We primarily use eco-friendly wooden boxes, pallets and packaging.
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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