ASTM A276 UNS S31653 is a material grade specification for cold-finished or hot-finished bars in S31653 stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. Boltport uses S31653 bar stock to ASTM A276 specifications for manufacturing stainless steel S31653 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 S31653 stainless steel round bars, square bars, hexagon bars and other extruded shapes.

Chemical Composition

Identification Symbol UNS Number Grade Elements Composition %
316LN S31653 21 chromium, 26 nickel,
4.5 molybdenum
Carbon 0.02 max
Manganese 2.00 max
Phosphorus 0.045 max
Sulfur 0.035 max
Silicon 1.00 max
Nickel 23.00 - 28.00
Chromium 19.00 - 23.00
Molybdenum 4.00 - 5.00
Copper 1.00 - 2.00
Nitrogen 0.10 max

Mechanical Properties

PropertyValue
Finish Hot-Finished & Cold Finished
Tensile Strength, min, ksi [MPa] 71 [490]
Yield Strength, min, ksi [MPa] 31 [215]
Elongation in 2 in. [50mm] or 4D, min, % 35
Reduction or Area, min, % --
Brinell Hardness Number, HBW --

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