Duplex 2205 Fasteners

Does Duplex 2205 Fasteners Rust?

Duplex 2205 fasteners are designed with both austenitic and ferritic microstructure. The fasteners are designed possessing excellent corrosion resistance properties. The Alloy 2205 fasteners have enhanced tolerance to pitting by acids and crevice corrosion. However, like all corrosion resistance fasteners, they rust when they are continuously exposed to the elements and temperatures above 600 degrees F.

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Is S31803 Bolt Same As Duplex 2205 Bolts?

The S31803 Bolts are part of the Duplex 2205 specification that conforms to the UNS specification regulations.

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What Are 2205 Duplex Stainless Steel Screws Used For?

The Duplex 2205 stainless steel screw is threaded and securely seals different applications. These screws are commonly seen in processing equipment, oil and gas exploration, and flue gas desulfurization systems. The alloy 2205 screws are part of pulp mill digesters, chemical process vessels, heat exchangers, pre-steaming vessels, etc.

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How Do You Make Duplex 2205 Hex Nuts?

The Duplex 2205 hex nuts are produced following various processes. Initially, a large wire rod is unoiled and cut to length. Using special material, the wire is cold forged into the correct dimensions. Here the steel gets molded at room temperature as it is passed through a series of dies at high pressure. The nuts are then subjected to heat treatment processes to harden the material. The threading of the nuts takes place during this time as it would make the fatigue performance better. The hex nuts are then surface treated depending on the applications and customer requirements. Since corrosion resistance is the main property required in nuts, they are usually zinc-plated. Once the process has taken place, the hex nuts are ready to be packed and shipped to our illustrious customers.

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2205 Duplex Stainless Steel Fasteners Types