Martensitic Stainless Steel AISI 418

Martensitic Stainless Steel 418 Bolts and Nuts

Martensitic Stainless Steel AISI 418

Buy Martensitic Stainless Steel 418 bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Martensitic Stainless Steel 418 bolting materials to ASTM B446, B564, F467, F468, UNS N06418, 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 Martensitic Stainless Steel 418 bolts and nuts with standard and custom manufacturing to your specification. We covers Martensitic Stainless Steel 418 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.

Martensitic Stainless Steel 418 Bolting Material

AISI 418 Specifications

  • ASTM B446 / ASME SB446
  • ASTM B443 / ASME SB443
  • ASTM B564 / ASME SB564
  • ASTM F467 / F467M
  • ASTM F468 / F468M
  • AMS 5666
  • BS 3076
  • AISI 418
  • UNS N06418
  • DIN / EN / Werkstoff No. 2.4856

AISI 418 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
418 132.0 63.0 42.5
800 132.0 61.0 45.0
1000 130.0 61.0 48.0
1200 119.0 60.0 34.0
1400 78.0 59.0 59.0
1418 40.0 39.0 117.0
* Properties extracted from ASTM A276/A276M Material Specification
  • AISI 418 for Aerospace Industry
  • AISI 418 for Chemical Processing Industry
  • AISI 418 for Food and Beverage Processing Industry
  • AISI 418 for Marine and Offshore Industry
  • AISI 418 for Oil and Gas Industry
  • AISI 418 for Paper and Pulp Processing Industry
  • AISI 418 for Power Generation Industry
  • AISI 418 for Research and Development Projects
  • AISI 418 for Water Desalination Plants

AISI 418 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

AISI 418 Applications

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