347 Stainless Fasteners

347 Stainless is used in corrosive environments with temperatures cycling above 800°F (425°C).

Common in oil refinery applications, heat sensors, and thermocouples.

Closely related to 321 Stainless but stabilized differently (Cb+Ta vs Ti).

Navratna supplies hex bolts and nuts on a made to order basis.

Stock: Hex bolts and hex nuts (made to order).

Properties

  • Grade: -
  • Primary Resistance: Corrosion
  • Specifications:
    • ASTM A193 B8C, ASME SA193 B8C (Bolts)
    • ASTM A194 8C, ASME SB194 8C (Nuts)
    • ASTM A276
    • UNS S34700
    • W-Nr 1.4550
  • Tensile Strength (KSI): 90
  • Chemistry:
    • C .06
    • Cb+Ta .5
    • Cr 18
    • Fe 69
    • Mn 1
    • Ni 11
    • P .03
    • S .01
    • Si .5