Alloy 255 Fasteners
We have experienced relatively low demand for Alloy 255 fasteners. Consequently, we stock very little.
Alloy 255 is a super duplex stainless which has a pitting resistance number greater than 40. Due to its copper content, it resists corrosion better than the other super duplexes, particularly in sea water applications.
Ferralium 255 (® Langley Alloys LTD)
ASTM A240 (Plate)
ASTM A479 (Bar)
Typical Tensile Strength (at room temperature in KSI)
Typical Chemistry (% by weight)
C .02, Cr 25, Cu 2, Fe 63, Mn 1.25, Mo 3.5, Ni 5.5, S .01, Si .75