Martensitic Stainless Steel AISI 503

Martensitic Stainless Steel 503 Bolts and Nuts

Martensitic Stainless Steel AISI 503

Buy Martensitic Stainless Steel 503 bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Martensitic Stainless Steel 503 bolting materials to ASTM B446, B564, F467, F468, UNS N06503, 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 503 bolts and nuts with standard and custom manufacturing to your specification. We covers Martensitic Stainless Steel 503 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 503 Bolting Material

AISI 503 Specifications

  • ASTM B446 / ASME SB446
  • ASTM B443 / ASME SB443
  • ASTM B564 / ASME SB564
  • ASTM F467 / F467M
  • ASTM F468 / F468M
  • AMS 5666
  • BS 3076
  • AISI 503
  • UNS N06503
  • DIN / EN / Werkstoff No. 2.4856

AISI 503 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
503 132.0 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
1503 40.0 39.0 117.0
* Properties extracted from ASTM A276/A276M Material Specification
  • AISI 503 for Aerospace Industry
  • AISI 503 for Chemical Processing Industry
  • AISI 503 for Food and Beverage Processing Industry
  • AISI 503 for Marine and Offshore Industry
  • AISI 503 for Oil and Gas Industry
  • AISI 503 for Paper and Pulp Processing Industry
  • AISI 503 for Power Generation Industry
  • AISI 503 for Research and Development Projects
  • AISI 503 for Water Desalination Plants

AISI 503 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 503 Applications

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