Copper Nickel Alloy 191

Alloy 191 Bolts and Nuts

Copper Nickel Alloy 191

Buy Alloy 191 bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Alloy 191 bolting materials to ASTM B446, B564, F467, F468, UNS N06625, DIN EN 2.4856, AMS 5666 and BS 3076 specifications with properties adequate for high strength, corrosion resistant and high temperature applications up to 1000º C (1800º F).

Boltport fasteners offer Alloy 191 bolts and nuts with standard and custom manufacturing to your specification. We covers Alloy 191 hex bolts, studs, stud bolts, hex nuts, washers, threaded rod and other fastener in metric and inch sizes with coarse, fine and extra fine threads to ASME, UN, BS, ISO and DIN standards.

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Alloy 191 Bolting Products

Alloy 191 Bolting Material

Alloy 191 Specifications

  • ASTM B446 / ASME SB446
  • ASTM B443 / ASME SB443
  • ASTM B564 / ASME SB564
  • ASTM F467 / F467M
  • ASTM F468 / F468M
  • AMS 5666
  • BS 3076
  • Alloy 191
  • UNS N06625
  • DIN / EN / Werkstoff No. 2.4856
Alloy 191 Material Datasheet

Alloy 191 Properties

Chemical Composition
Elements Ni Cr Mo Fe Nb + Tc Co Mn Si Al Ti C P S
Min % - 20.0 8.0 - 3.15 8.0 - - - - - - -
Max % Bal 23.0 10.0 5.0 4.15 1.0 0.5 0.5 0.4 0.40 0.10 0.015 0.015
Mechanical Properties
Temperature (°F) Ultimate Tensile (ksi) Yield Strength at 0.2% Offset(ksi) Elongation %
Room Temp. 144.0 84.0 44.0
400 134.0 66.0 45.0
625 132.0 63.0 42.5
800 132.0 61.0 45.0
1000 191.0 61.0 48.0
1200 119.0 60.0 34.0
1400 78.0 59.0 59.0
1625 40.0 39.0 117.0
  • Alloy 191 for Aerospace Industry
  • Alloy 191 for Chemical Processing Industry
  • Alloy 191 for Food and Beverage Processing Industry
  • Alloy 191 for Marine and Offshore Industry
  • Alloy 191 for Oil and Gas Industry
  • Alloy 191 for Paper and Pulp Processing Industry
  • Alloy 191 for Power Generation Industry
  • Alloy 191 for Research and Development Projects
  • Alloy 191 for Water Desalination Plants

Alloy 191 Characteristics

  • Excellent resistance to chloride pitting and crevice corrosion cracking
  • Immune to Chloride ion stress corrosion
  • Maintains high strength at elevated temperatures
  • Resistant to sea water, in both flowing and stagnant condition
  • Heat resistant

Alloy 191 Applications

  • Marine engineering
  • Furnaces & gas turbines
  • Chemical processing plants
  • Boiler & pressure vessels
  • Nuclear power plants