Duplex Steel Fasteners

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Duplex Steel Fasteners Manufacturer, Exporter and Supplier in Dubai, UAE.

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Duplex steel fasteners are hardware components such as bolts, screws, nuts, washers, and studs made from duplex stainless steel, a type of stainless steel alloy characterized by a two-phase microstructure consisting of both austenitic and ferritic phases. This dual-phase structure provides duplex steel fasteners with unique properties, including high strength, excellent corrosion resistance, and good weldability.

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

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

GradeYS (MPa)UTS (MPa)% ElongationHardness(BHN)
UNS S32750550 min.795 min.15 min.310 max.
UNS S32760550 min.750 min.25 min.270 max.

Top Duplex Steel Fasteners Manufacturing Company in Dubai

At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.

Duplex Steel Fasteners Grades

Contact us to get a quick quote for your requirement.

We offer These Duplex Steel Fasteners as per DIN, ISO, JIS or ANSI Standard.

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Advantages of Duplex Steel Fasteners

Advantages of Duplex Steel Fasteners
  1. High Corrosion Resistance: Duplex steel fasteners offer superior corrosion resistance to standard stainless steel fasteners, particularly in chloride-rich environments like marine and coastal areas.
  2. Excellent Strength: Duplex steel fasteners are stronger than austenitic stainless steels, making them suitable for high mechanical performance applications.
  3. Good Weldability: Duplex steel fasteners exhibit good weldability, allowing for easy fabrication and assembly in various applications.
  4. High Toughness: Duplex steel fasteners possess high toughness, providing resistance to brittle fracture and impact loading, enhancing their durability in demanding environments.
  5. Stress Corrosion Cracking Resistance: Duplex steel fasteners resist stress corrosion cracking, a common issue in harsh environments containing chloride ions.

Types of Duplex Steel Fasteners

Duplex-Steel-Fasteners-In-UAE
Duplex Steel Fasteners
Duplex-Fasteners-In-UAE
Duplex Fasteners
Duplex Steel Industrial Fasteners
ASTM-A193-Duplex-Fasteners-In-UAE
ASTM A193 Duplex Fasteners
Duplex Anchor Fasteners
Duplex--Fasteners-In-UAE
Duplex Fasteners

ASTM A182 F51 Fasteners, Duplex F60 Fasteners, Ferritic Duplex Stainless Steel S31803 Socket Head Cap Screw, S31803 Duplex Heavy Hex Nut, Duplex S32205 Hex Head Bolt in Dubai, UNS S32205 Duplex Steel Lock Hex Nut, Duplex Steel 2205 Spring Washer Suppliers in Dubai, UAE.

Duplex Steel Fasteners Uses

Application Industry

Duplex steel fasteners play a vital role across diverse industrial sectors, thanks to their exceptional properties. Widely utilized in industries such as chemical processing, oil and gas, marine, and offshore, these fasteners offer superior corrosion resistance and mechanical strength.

Oil & Gas Industry

Aviation Industry

Offshore Drilling

Power Generation Industry

  1. Chemical Processing: Duplex steel fasteners are commonly used in chemical processing plants for equipment such as reactors, pipelines, valves, and pumps, where they withstand corrosive chemicals and acidic environments.
  2. Oil and Gas Industry: Duplex steel fasteners find applications in offshore platforms, refineries, pipelines, and subsea equipment, where they resist corrosion from harsh environments, including seawater, hydrocarbons, and high-pressure conditions.
  3. Marine Engineering: Duplex steel fasteners are utilized in marine environments for shipbuilding, offshore structures, desalination plants, and underwater pipelines, providing excellent corrosion resistance to saltwater exposure and extreme weather conditions.
  4. Offshore Drilling: Duplex steel fasteners are used in offshore drilling and exploration for equipment such as risers, wellheads, subsea pipelines, and platforms, where they withstand corrosive environments and high levels of chlorides.
  5. Power Generation: Duplex steel fasteners are employed in power generation facilities such as nuclear power plants, gas turbines, and steam turbines for applications such as boiler assemblies, turbine components, and heat exchangers, where they offer corrosion resistance and high-temperature performance.

How to Choose the Right Duplex Steel Fasteners

  1. Identify Application Requirements: Determine the operating conditions such as temperature, pressure, corrosion exposure, mechanical loads, and other factors that the fasteners will be subjected to.
  2. Select the Appropriate Duplex Steel Grade: Duplex steel fasteners are available in various grades, each offering different levels of corrosion resistance, strength, and temperature stability. Choose a grade that best matches the requirements of your application.
  3. Consider Fastener Type and Configuration: Determine the type of fasteners needed (bolts, screws, nuts, washers, etc.) and their specifications (size, thread type, head style, etc.) based on the specific assembly requirements and structural considerations.
  4. Evaluate Environmental Factors: Consider the exposure to corrosive substances, such as chlorides, acids, alkaline solutions, and seawater, to select Duplex steel fasteners with the appropriate corrosion resistance and durability.
  5. Assess Load Requirements: Determine the mechanical loads, stresses, and vibration levels that the fasteners will experience during operation to ensure they have the necessary strength, fatigue resistance, and reliability.

What types of Duplex steel grades are used for fasteners?

Duplex steel fasteners are available in various grades, including Duplex 2205, Duplex 2304, Duplex 2507, and others, each offering different levels of corrosion resistance, strength, and temperature stability.

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FAQ (Frequently Asked Questions)

Are Duplex steel fasteners resistant to corrosion?

Yes, Duplex steel fasteners exhibit excellent corrosion resistance, particularly in chloride-rich environments, making them suitable for applications in marine, offshore, and chemical processing industries.

Can Duplex steel fasteners be welded?

Yes, Duplex steel fasteners can be welded using appropriate welding techniques and compatible filler materials, ensuring proper joint integrity and maintaining corrosion resistance.

Are Duplex steel fasteners suitable for high-temperature applications?

Yes, certain grades of Duplex steel fasteners offer good temperature resistance and can be used in high-temperature applications such as petrochemical processing and power generation.

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