Martensitic Stainless Steel AISI 440A

Buy AISI 440A bolts, nuts, and other fasteners from Adfast Component, an Indian manufacturer & supplier of AISI 440A bolting materials to ASTM B446, B564, F467, F468, UNS N06600, DIN EN 2.4856, AMS 5666, and BS 3076 specifications. These products are designed with properties suitable for high strength, corrosion resistance, and high-temperature applications up to 1000ºC (1800ºF).

Adfast Component fasteners provide AISI 440A bolts and nuts with both standard and custom manufacturing as per your specifications. The product range covers AISI 440A hex bolts, studs, stud bolts, hex nuts, washers, threaded rods, and other fasteners in metric and inch sizes, available with coarse, fine, and extra fine threads to ASME, UN, BS, ISO, and DIN standards.

bolts-and-nuts
bolts-and-nuts

AISI 440A Specifications

  • ASTM B446 / ASME SB446
  • ASTM B443 / ASME SB443
  • ASTM B564 / ASME SB564
  • ASTM F467 / F467M
  • ASTM F468 / F468M
  • AMS 5666
  • BS 3076
  • Alloy 600
  • UNS N06600
  • DIN / EN / Werkstoff No. 2.4856
Chemical Composition
ElementsCMnPSSiCrMo
Min %0.6016.0
Max %0.751.000.0400.0301.0018.00.75
Mechanical Properties
Ultimate Tensile, ksi [MPa]Yield Strength Offset, ksi [MPa]Elongation, %Reduction Of Area, %Hardness
269 BHN max
* Properties extracted from ASTM A276/A276M Material Specification
  • 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
  • Marine engineering
  • Furnaces & gas turbines
  • Chemical processing plants
  • Boiler & pressure vessels
  • Nuclear power plants