Duplex Steel, Alloy 2205 , UNS S32205 , 1.4462 Fasteners

Duplex Steel Alloy 2205 (UNS S32205 / EN 1.4462) fasteners offer a proven and powerful solution. Manufactured with an equal microstructure of 50% austenite and 50% ferrite, Duplex 2205 fasteners deliver stronger mechanical strength nearly twice that of 304 stainless steels & 316 stainless steels, combined with resistance to pitting, crevice and stress corrosion cracking (SCC).

What is a Duplex Steel Fasteners?

Duplex Steel Fasteners are a special type of fastener manufactured from a custom-made alloy that embodies the best qualities of both austenitic and ferritic stainless steels. The unique composition provides fasteners with higher mechanical properties combined with excellent resistance to corrosion.

The microstructure of duplex steel consists of an approximately equal amount of austenite and ferrite, which gives it its superior properties. These are fasteners used in extremely harsh conditions where durability and reliability shall not be compromised. Starting from petrochemicals, this duplex steel offers a wide banner of strength and resilience in each industry.

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These properties make X2CrNiMoN22-5-3 Fasteners for critical bolting and fastening applications in:

• Offshore platforms
• Chemical processing
• Desalination plants
• Marine hardware
• Pulp & paper
• Waste water treatment
• Structural components opened to chloride laden environments.

Fasteners manufactured from Duplex 2205 comply with globally recognized standards, including:

• ASTM A479 / A276 – Bars for fasteners and machined components
• ASTM A193 Grade B8SX / B8M Duplex – Bolting specifications for high-temperature and high-pressure service
• EN 1.4462 / DIN 1.4462 / ISO 3506-1 – European mechanical and corrosion standards for stainless fasteners
• NACE MR0175 / ISO 15156 – Sulfide stress cracking resistance for sour service in oil & gas

With a Pitting Resistance Equivalent Number (PREN) >35, Duplex 2205 fasteners standard in rust areas while maintaining cost efficiency compared to high nickel alloy.

Advantages of Using Duplex Steel Fasteners?

Duplex Steel fasteners have tremendous advantages, not only in their exceptional resistance to corrosion. Some of the major benefits of the same will be discussed below:

• High Resistance to Corrosion: Amongst some of the excellent features of Duplex Steel Fasteners, great resistance to corrosion in extreme and saline conditions is very significant. This idealizes their application in marine and coastal areas related to very high exposure to salt water, which is quite detrimental.
• High Tensile Strength: The particular composition of the alloy constituent in the case of duplex steel fastenersaccordion provides them with higher tensile strength compared to many other categories of stainless steel. This will definitely enable them to bear higher amounts of stress without losing their integrity and therefore be used in heavy-duty applications.
• The cost of the material is a bit higher compared to regular stainless steel. However, the durability and longevity of duplex steel decrease long-run costs because it requires fewer replacements and less maintenance.
• SCC Resistance: Most conventional fasteners have low resistance against SCC, while duplex steel stands tall. This property is highly utilized, as most industries go through alternating temperatures and corrosive environments, and hence this property secures the structural integrity over time.
• High Durability: Since Duplex Steel Fasteners are highly tough, they very easily bear all types of wear and tear that is caused due to mechanical damage. That is why it can be used for a long period without changing it frequently, which in turn increases the performance at work.

Dalloyed is one of the leading Duplex Steel fastener suppliers, ensuring that every item offered meets the criteria for international standards to avail reliable and superior fastening solutions to its clients.

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Duplex 2205 fasteners offer long term high performance, and full standards available.

Choose the material that holds stronger, lasts longer, and stands up to the toughest environments: Duplex Steel 2205 Fasteners.

Duplex Steel DIN 1.4462 Fasteners : Types and Standards

High-Tensile Duplex Steel Fasteners: Uses and Applications

High Tensile Duplex Steel Fasteners are among the vital materials in industries due to their versatility and strength. We provide different products as Duplex Steel Fasteners Suppliers and help you choose the most appropriate choice according to your need. Here are a few of the common uses and applications.

• Oil and Gas Industry: Necessary for offshore and onshore drilling operations due to the fact that they have the ability to show very superior resistance against extreme pressures, which means under extreme conditions, as well as to corrosive media.
• Chemical Processing: Since the Duplex fasteners can bear high temperatures and corrosive components of the chemicals, they become indispensable in chemical plants. Because of the excellent corrosion resistance, it is ideal to deal with marine engineering such as shipbuilding, docks, and coastal structures that install fasteners in order to avoid erosion brought by saltwater by using Duplex.
• Pulp and Paper Industry: This type of fastener does well in an atmosphere where exposure to sulfide and chloride-containing areas is rampant, common in industries dealing with paper.
• Construction and Infrastructure: Duplex steel fasteners have been found reliable in constructions that involve a great deal of tension due to the tensile strength.

The Dalloyed is one of the major Duplex Steel fastener stockists, which ensures a continuous supply of these valuable fasteners to meet the diversified needs of the world market.

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Why Choose Dalloyed for Your Duplex Steel Needs?

At Dalloyed, we are considered one of the leading names amongst Duplex Steel Fasteners Stockists, availing genuine and authenticated quality fasteners trusted across industries worldwide. With their superior strength, unparalleled corrosion resistance, and embedded value-for-money pricing, Duplex Steel Fasteners offered by Dalloyed will stand beyond performance and longevity expectations. Be it marine, chemical, or construction, these fasteners offer durability and reliability your projects require.