Duplex Steel S31803 / S32205 Fasteners Manufacturer

The UNS S31803 Fasteners are composed of carbon, manganese, silicon, phosphorus, sulfur, chromium, molybdenum, nickel, nitrogen, and iron. Duplex Steel S32205 Fasteners are nitrogen-improved duplex stainless steel that was created to combat normal corrosion issues experienced with the 300 series stainless steel. Duplex Steel S31803 Fasteners are neither completely austenitic nor absolutely Ferritic. The structure of S31803 duplex stainless steel comprises austenite pools encompassed by a persistent ferrite phase. We also manufacture other material fasteners like Inconel Fasteners, Hastelloy Fasteners, Copper Nickel Fasteners, etc.

One of the benefits of a duplex architecture is that it consolidates the great characteristics of a Ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance). Use of 2205 Duplex stainless steel should be restricted to temperatures below 600 degrees F.

When using DIN 1.4462 Screws, it is recommended that the temperature range between 950°C and 700°C be traversed in no more than two minutes. These Duplex S32205 Hex Head Nuts are further cooling down to 300 Degrees C and should be completed as soon as possible due to the chance that other undesirable metallic phases could occur. These fasteners can be welded easily. Avoid using these Duplex S32205 Square Nuts with extremely low and extremely high heat input. It is recommended to cool these Duplex S32205 T-Nuts as quickly as possible after annealing.