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MUKAU FASTENERS is a top-notch manufacturer and supplier based in Kinshasa, Congo, specializing in high-quality Stainless Steel 253 MA Washers. These washers are crafted for exceptional strength at high temperatures, outstanding corrosion resistance, and impressive durability. Made from a unique blend of low-carbon, high-chromium, nickel-molybdenum austenitic stainless steel, they ensure reliable load distribution, secure fastening, and surface protection in tough industrial settings. MUKAU FASTENERS is committed to precision manufacturing and adheres to international standards, making their 253 MA Washers perfect for power generation, chemical processing, petrochemical industries, and marine applications where mechanical stability and corrosion resistance are essential. These washers perform exceptionally well even under heat, oxidation, and challenging corrosive conditions.
Stainless Steel 253 MA Washers are composed of about 21% chromium, 11% nickel, 2% molybdenum, and 0.7% copper, which gives them remarkable high-temperature strength and corrosion resistance. They boast a tensile strength of around 600 MPa, along with high yield strength, good ductility, and toughness. These washers are designed to resist scaling, stress corrosion, and thermal deformation, ensuring they maintain their shape and provide reliable load distribution in extreme conditions. The alloy guarantees long-lasting durability, mechanical integrity, and secure fastening, making 253 MA Washers an excellent choice for industrial, chemical, and marine applications that demand dependable performance in high heat and corrosive environments.
| Specifications | ASTM A193 ASME SA193 / ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
| Standard | DIN, ASTM, BS and all International Standards |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Type | Finishing Cup Washers, Tab Washers, Bonded Sealing Washers, Lock Washers, Star Lock Washers, |
| 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 Washers find their place in a variety of settings, including power plants, chemical and petrochemical facilities, offshore and marine structures, high-temperature industrial machinery, and pressure vessel assemblies. They excel at distributing loads, protecting surfaces, and ensuring that nuts and bolts are securely fastened in high-temperature and corrosive environments. The 253 MA grade is known for its exceptional durability and mechanical strength, making it a go-to choice for applications that require reliable performance under challenging conditions.
Mukau Fasteners packs our Stainless Steel 253 MA Washers with the utmost care. Our dedicated team ensures the washers are carefully packaged using high-quality materials that meet industry standards. We use wooden boxes, pallets, and eco-friendly packing materials, protecting the products from dirt and dust during transit 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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