Alloy 255 Fasteners
Alloy 255 is a super duplex stainless with a pitting resistance number above 40.
Copper content improves seawater corrosion resistance.
Demand for fasteners is low, so Navratna stocks little.
Stock: Minimal stock of fasteners.
Properties
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Grade:
- Ferralium 255 (® Langley Alloys LTD)
- Primary Resistance: Corrosion
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Specifications:
- ASTM A240 (Plate)
- ASTM A479 (Bar)
- UNS S32550
- W-Nr 1.4507
- Tensile Strength (KSI): 65
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Chemistry:
- C .02
- Cr 25
- Cu 2
- Fe 63
- Mn 1.25