Alloy 400 Fasteners

Alloy 400 is versatile and is used to resist both acids and alkalis. Seawater applications are common.

A variant is Alloy 405 (UNS N04405). It contains slightly more sulfur, which improves machinability.

Stock: Hex bolts, nuts, washers, socket cap screws, machine screws. Lock washers made from Alloy 500.

Properties

  • Aliases:
    • Monel 400 (® Special Metals)
    • ATI 400 (® Allegheny Technologies)
    • Langalloy 400 (® Langley Alloys Inc)
    • Nickelvac 400 (® Allegheny Technologies)
    • Nicorros Alloy 400 (® ThyssenKrupp VDM)
    • Silverin 400 (® Deutsche Nickel)
  • Primary Resistance: Corrosion
  • Specifications:
    • ASTM B127, ASME SB127 (Plate)
    • ASTM B564, ASME SB564 (Rod)
    • QQ-N-281
    • UNS N04400
    • W-Nr 2.4360
  • Tensile Strength (KSI): 80
  • Chemistry:
    • C .15, Cu 31, Fe 2, Mn 1, Ni 66.5, S .01, Si .25