Duplex Steel Fasteners

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Duplex Steel Fasteners Manufacturer and Supplier in Kinshasa, Congo

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Mukau Fasteners, a leading manufacturer and supplier based in Kinshasa, Congo, offers a premium range of Duplex Steel Fasteners designed for superior strength and long-lasting performance. Our Duplex Steel Fasteners are known for their exceptional resistance to corrosion, high tensile strength, and durability in harsh environments. With advanced production techniques and a focus on precision engineering, Mukau Fasteners ensures products that meet global quality standards. These fasteners are trusted across industries such as marine, chemical, and oil & gas for their reliability and ability to perform under extreme conditions.

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Duplex Steel Fasteners are composed of approximately 22% chromium, 5–6% nickel, 3% molybdenum, and small amounts of nitrogen, giving them a dual-phase microstructure of austenite and ferrite. This composition provides outstanding strength, toughness, and resistance to corrosion. The fasteners exhibit high tensile strength (up to 800 MPa) and excellent yield strength (around 450 MPa). They also offer superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for challenging industrial and marine environments.

Duplex Steel Fasteners Chemical Composition

Phosphorus	Sulphur	Silicon	Carbon	Manganese	Nickel	Molybdenum	Nitrogen	Copper	Chromium
0.035 % max	0.02 % max	0.80 % max	0.03% Max	1.20 % max	6.00 – 8.00 %	3.00 – 5.00 %	0.24 – 0.32 %	0.50 % max	24.0 – 26.0 %

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Duplex Steel Fasteners Mechanical Properties

Grade	YS (MPa)	UTS (MPa)	% Elongation	Hardness(BHN)
UNS S32750	550 min.	795 min.	15 min.	310 max.
UNS S32760	550 min.	750 min.	25 min.	270 max.

Duplex Steel Fasteners Specifications

Specifications	:	ASTM A182 / ASME SA182
Size	:	1/8″ NB TO 24″ NB
Standards	:	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure	:	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	:	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Grades	:	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F6

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Commited to High Quality Service

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.

Duplex Steel Fasteners are widely used in industries that demand high-performance fastening solutions. They are ideal for use in chemical processing equipment, marine applications, offshore platforms, heat exchangers, pressure vessels, and pipelines. Their excellent corrosion resistance makes them perfect for use in seawater and acidic environments. Additionally, they are often used in desalination plants, structural assemblies, and power generation systems. The combination of superior mechanical strength and corrosion resistance ensures these fasteners provide long-term reliability, safety, and stability in both high-pressure and corrosive conditions.

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Types of Duplex Steel Fasteners

At Mukau Fasteners, we prioritize the safe packaging of Duplex Steel Fasteners to maintain their quality and prevent damage. Each binder is thoroughly inspected and wrapped in protective packaging to ensure it arrives in the best possible condition. We offer a range of packaging options, including drop boxes and containers in sizes to suit your needs. Our durable packaging solutions protect your fasteners during transit and storage, assuring they are ready for immediate use in your most demanding applications.