Duplex and Super Duplex UNS S32205 Nuts

Duplex and Super Duplex UNS S32205 Nuts are internally threaded mechanical fasteners, typically hexagonal in shape, designed to be paired with corresponding Duplex Bolts or Stud Bolts. Manufactured from Duplex Stainless Steel UNS S32205 (Alloy 2205), these nuts share the same enhanced mechanical properties and corrosion resistance as the bolts, ensuring the entire bolted joint maintains integrity. They are characterized by high tensile and yield strength, offering excellent resistance to fatigue and stress corrosion cracking in high-chloride environments such as marine, offshore, and chemical processing facilities. Zeron Fastners supplies these nuts in various styles, including heavy hex nuts and coupling nuts, for critical, high-load flange applications.

Related Products

Duplex S32205 Hex Bolts Duplex S32205 Stud Bolts Super Duplex S32760 Nuts Duplex S32205 Washers Duplex S31803 Flanges Duplex S31803 Pipe Fittings
UNS S32205 Nuts

Duplex and Super Duplex UNS S32205 Nuts Chemical Composition

Element Content (%)
Carbon (C) 0.030 max
Manganese (Mn) 2.00 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.030 max
Sulfur (S) 0.020 max
Chromium (Cr) 21.0 – 23.0
Nickel (Ni) 4.5 – 6.5
Molybdenum (Mo) 2.5 – 3.5
Nitrogen (N) 0.08 – 0.20

Duplex and Super Duplex UNS S32205 Nuts Mechanical Properties

Property Value
Tensile Strength (min) 620 MPa (90 ksi)
Yield Strength (0.2% Offset min) 450 MPa (65 ksi)
Elongation in 4D (min) 25%
Hardness (Brinell max) 290 HB

Duplex and Super Duplex UNS S32205 Nuts Feature Products

Super Duplex S32750 Flanges Monel 400 Socket Cap Screws SS 316 Pipe Fittings Alloy Steel Cap Screws

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