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MUKAU FASTENERS stands out as a top manufacturer and supplier in Kinshasa, Congo, offering high-quality SMO 254 Nuts that excel in corrosion resistance, mechanical strength, and long-lasting durability, even in tough industrial settings. Crafted from a premium high-alloy austenitic stainless steel, these nuts are designed to resist pitting, crevice corrosion, and stress corrosion cracking, ensuring dependable fastening in harsh chemical and chloride-rich environments. MUKAU FASTENERS is committed to precision and adheres to international standards, making their SMO 254 Nuts perfect for applications in chemical processing, petrochemical, offshore, marine, and high-performance machinery, where mechanical integrity and secure connections are essential.
SMO 254 Nuts are made up of about 20% chromium, 18% nickel, 6–7% molybdenum, and 0.2–0.3% nitrogen, resulting in a high-performance austenitic stainless steel alloy. They boast a tensile strength ranging from 750 to 900 MPa, along with impressive yield strength, excellent toughness, and outstanding resistance to pitting, crevice, and stress corrosion cracking. These nuts maintain their shape and mechanical integrity even in high-chloride, high-temperature, and chemically aggressive environments, making them a reliable choice for critical fastening applications that demand both strength and corrosion resistance.
| Grade | Ni | C | Mo | Mn | Si | F | Cu | S | P | Cr |
| SMO 254 | 17.5 – 18.5 | 0.02 max | 6 – 6.5 | 1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| Element | Density | Melting Point | Yield Strength (0.2%Offset | Tensile Strength | Elongation |
| SMO 254 | 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
Standard ASTM A182, A479 / ASME SA182, SA479
Dimensions DIN 934/936/982/985, ISO 4032 / 4033 /4035, ASME B18.2.2, B18.2.4.6M
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Size M6-M100
Type Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling
Length 3 mm to 200 mm
Grade SMO 254 F44 UNS (S31254), DIN (1.4547)
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.
You’ll find SMO 254 Nuts widely used in chemical and petrochemical plants, offshore oil and gas platforms, desalination facilities, marine engineering, and high-performance industrial equipment. They’re perfect for securing pressure vessels, heat exchangers, pumps, piping systems, and structural components that face aggressive chemicals, high chloride levels, and elevated temperatures, ensuring strong and lasting connections. Thanks to the alloy’s remarkable corrosion resistance and mechanical strength, these nuts provide long-term reliability with minimal upkeep.
Our SMO 254 nuts at Mukau Fasteners are packed in a manner that will allow them to be in the best condition when they get to the client. Every nut is covered and sealed in a strong and moisture proof pack to avoid spoilage and damage. Proper labeling will help in identification and management of the products or items in the store. Our packing is also very careful to ensure that the nuts do not lose their quality; they are ready for use which is a reflection of our quality products and quality service delivery.
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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