ASTM A276 Type 440C Fasteners

ASTM A276 Type 440C is a material grade specification for cold-finished or hot-finished bars in 440C stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. Boltport uses 440C bar stock to ASTM A276 specifications for manufacturing stainless steel 440C bolts, nuts, screws, studs, threaded rods, other fasteners and bar stock components for general engineering purposes.

ASTM A276 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for 440C stainless steel round bars, square bars, hexagon bars and other extruded shapes.

Chemical Composition

Grade Symbol UNS Number Elements Composition, %
Type 440C S44004 Carbon 0.95 - 1.20
Manganese 1.00 max
Phosphorus 0.040 max
Sulfur 0.030 max
Silicon 1.00 max
Chromium 16.00 - 18.00
Molybdenum 0.75 max

Mechanical Properties

Property Value
Finish Hot-Finished Cold Finished
Tensile Strength, min, ksi [MPa] .... ....
Yield Strength, min, ksi [MPa] .... ....
Elongation in 2 in. [50mm] or 4D, min, % .... ....
Reduction or Area, min, % .... ....
Brinell Hardness Number, HBW 269 285

Fasteners

  • AISI 4140 Bolts
    Bolts
  • AISI 4140 Screws
    Screws
  • AISI 4140 Stud Bolts
    Studs
  • AISI 4140 Nuts
    Nuts
  • AISI 4140 Threaded Rods
    Threaded Rods
  • AISI 4140 Pins
    Pins
  • AISI 4140 Washers
    Washers
  • AISI 4140 Components
    Components