ASTM B408 UNS N08890 is standard material specification for Inconel 890 / Alloy 890 bars and rods in hot-worked or cold-worked finished. Find requirement for UNS N08890 bar / rod chemical composition, mechanical properties, straightness, diameter, length and machining allowance, manufactured to ASTM B408 specification. Boltport offers bolts, screws, studs, threaded rods, nuts, washers and other bar stock fasteners to ASTM B408 UNS N08890 material specification.

Chemical Composition

UNS Designation Alloy Elements Composition %
N08890 Inconel 890 Nickel 40.00 - 45.00
Chromium 23.50 - 28.50
Iron Remainder
Manganese 1.50 max
Carbon 0.06 - 0.14
Copper 0.75 max
Silicon 1.00 - 2.00
Sulfur 0.015 max
Aluminum 0.05 - 0.60
Titanium 0.05 - 0.60
Molybdenum 1.0 - 2.0
Niobium 0.2 - 1.0
Tantalum 0.10 - 0.60

Mechanical Properties

PropertyValue
Condition Cold-worked and hot-worked, annealed
Tensile Strength, min, ksi [MPa] 75 [520]
Yield Strength, min, ksi [MPa] 30 [205]
Elongation in 2 in. [50mm] or 4D, min, % 35

Notes:
A: For hot-worked as-hot-worked rectangular bar 5⁄16 in. (7.94 mm) and under in thickness the elongation shall be 20 % min.
B: Forging quality is furnished to chemical requirements and surface inspection only. No tensile properties are required.

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