Hastelloy Washers

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Hastelloy Washers Manufacturer and Supplier in Kinshasa, Congo

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Mukau Fasteners, based in Kinshasa, Congo, is a leading manufacturer and supplier of Hastelloy Washers, recognized for their exceptional corrosion resistance and durability in challenging environments. Our Hastelloy Washers are engineered to provide reliable performance in industries where exposure to aggressive chemicals and high temperatures is common. Designed to meet international standards, these washers offer excellent strength, stability, and long service life. At Mukau Fasteners, we focus on delivering precision-engineered products that ensure dependable fastening solutions for various industrial applications across the chemical, marine, and power generation sectors.

 

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Hastelloy Washers are primarily composed of nickel, molybdenum, and chromium, with small additions of iron, cobalt, and tungsten to enhance mechanical and corrosion resistance properties. They offer excellent tensile strength, typically around 690 MPa, and maintain structural integrity under high pressure and temperature conditions. These washers also demonstrate superior resistance to pitting, crevice corrosion, and stress cracking in oxidizing and reducing environments. Their robust composition makes them ideal for ensuring reliable sealing and load distribution in harsh industrial conditions.

 

Hastelloy Washers Specifications

Specifications ASTM B574 / ASME SB574
Fasteners size Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14
Fasteners Length 3 mm to 200 mm
Fastener Threads UNF, BSW, BSF, METRIC, UNC or as required
Standard of High Nickel Alloy Fasteners DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 Hex nuts
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Surface Coating Ptfe Coated High Nickel Alloy Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating
Fasteners Finishing High Nickel Alloy : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), High Nickel Alloy, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide.

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Hastelloy Washers Chemical Composition

Grade C Mn Si Co S Ni Cr Fe Mo W V P
Hastelloy Fasteners 0.010 max 1.0 max 0.08 max 2.5 max 0.03 max Bal 14.5 – 16.5 4 – 7 15 – 17 3 – 4.5 0.35 max 0.04 max

Hastelloy Washers Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Hastelloy Fasteners 8.89 g/cm3 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 Psi – 52,000 , MPa – 355 40 %

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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.

Hastelloy Washers are widely used in industries where superior corrosion resistance and durability are essential. They are ideal for chemical processing plants, heat exchangers, power generation units, and marine applications. These washers are also used in pressure vessels, pipelines, and equipment exposed to acidic and oxidizing agents. Their ability to withstand extreme temperatures and corrosive media makes them perfect for use in petrochemical, pharmaceutical, and pollution control systems. Industries rely on Hastelloy Washers for their reliability, strength, and long-term performance in critical fastening and sealing operations.

 
 

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Types of Hastelloy Washers

Hastelloy Washer
Hastelloy Spring Washers
Hastelloy Plain / Flat Washer
Hastelloy Alloy punched washer
Hastelloy Spherical Washers
Hastelloy Alloy lock washer

We at Mukau Fasteners make sure that our Hastelloy washers are packed with great care and precaution. The washers are packed in groups of one each in individual protective covers to avoid scratching, rusting or getting contaminated in the process. Some of our packaging products include; cartons that are highly durable and packaging solutions that are made to order. They help in easy identification and packing to enhance our reputation of delivering quality products in good condition.

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Aerospace Industry
Petrochemical Industry
Defence Industry

Hastelloy Washers Applications