ASTM A276 Type 309Cb is a material grade specification for cold-finished or hot-finished bars in 309Cb stainless steel, available in form of rounds, square, hexagons and other hot rolled extruded shapes. Ferrobend offers 309Cb bars, shafts, angle, channel, beam profiles, bolts, studs, screws, nuts, threaded rods, pins and other bar stock components to astm a276 type 309Cb specification.
ASTM A276 specification covers requirements such as chemical composition, mechanical properties, heat treatment and other supplementary requirements for 309Cb stainless steel round bars, square bars, hexagon bars and other extruded shapes.
| Grade Symbol | UNS Number | Elements | Composition, % |
|---|---|---|---|
| Type 309Cb | S30940 | Carbon | 0.08 max |
| Manganese | 2.00 max | ||
| Phosphorus | 0.045 max | ||
| Sulfur | 0.030 max | ||
| Silicon | 1.00 max | ||
| Chromium | 22.00 - 24.00 | ||
| Nickel | 12.00 - 16.00 | ||
| Columbiun | 10×C-1.10 |
| Property | Value | ||
|---|---|---|---|
| Finish | Hot-Finished | Cold Finished | |
| Diameter or Thickness,in. (mm) | All | up to 1⁄2 (12.70) incl | over 1⁄2 (12.70) |
| Tensile Strength, min, ksi [MPa] | 75 [515] | 90 [620] | 75 [515] |
| Yield Strength, min, ksi [MPa] | 30 [205] | 45 [310] | 30 [205] |
| Elongation in 2 in. [50mm] or 4D, min, % | 40 | 30 | 30 |
| Reduction or Area, min, % | 50 | 40 | 40 |
| Brinell Hardness Number, HBW | -- | -- | -- |
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