ASTM A276 / A276M UNS S82441
ASTM A276 UNS S82441 is a material grade specification for cold-finished or hot-finished bars in S82441 stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. Ferrobend uses S82441 bar stock to ASTM A276 specifications for manufacturing stainless steel S82441 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 S82441 stainless steel round bars, square bars, hexagon bars and other extruded shapes.
Chemical Composition
| Identification Symbol | UNS Number | Elements | Composition % |
|---|---|---|---|
| ... | S82441 | Carbon | 0.030 max |
| Manganese | 2.5 - 4.00 | ||
| Phosphorus | 0.035 max | ||
| Sulfur | 0.005 max | ||
| Silicon | 0.070 max | ||
| Chromium | 23.00 - 25.00 | ||
| Nickel | 3.00 - 4.5 | ||
| Molybdenum | 1.00 - 2.00 | ||
| Nitrogen | 0.20 - 0.30 | ||
| Copper | 0.10 - 0.80 |
Mechanical Properties
| Property | Value | |
|---|---|---|
| Finish | Hot-Finished & Cold Finished | |
| Diameter or Thickness,in. (mm) | Under 7/16 [11 mm] | 7/16 and over [11 mm] |
| Tensile Strength, min, ksi [MPa] | 107 [740] | 99 [680] |
| Yield Strength, min, ksi [MPa] | 78 [540] | 70 [480] |
| Elongation in 2 in. [50mm] or 4D, min, % | 25 | 25 |
| Reduction or Area, min, % | -- | -- |
| Brinell Hardness Number, HBW | 290 | 290 |
