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21-4N
21-4N material is UNS SAE J 775 (2004) Engine poppet valve information report Engine poppet valve information report.
Chemical composition of 21-4N, 21-4N mechanical properties, 21-4N datasheet, 21-4N equivalent grade, Heat treatment and temperature process of 21-4N.
21-4N property sheet
Related Materials
Chemical Composition of 21-4N
| C: | Max | 0.05 |
| Si: | Max | 0.20 |
| Mn: | Max | 0.50 |
| P: | Max | Min |
| S: | Max | Min |
| Ni: | Max | remaining |
| Cr: | 15.00 | 17.00 |
| Al: | 4.00 | 5.00 |
| Cu: | Max | Min |
| Ti: | Max | 0.50 |
| Fe: | 2.00 | 4.00 |
| N: | Max | Min |
| Mo: | Max | 0.50 |
| B: | Max | 0.006 |
| Zr: | Max | 0.05 |
Mechanical Properties of 21-4N
| Rp0.2 (MPa) | 644 (≥) |
| Rm (MPa) | 229 (≥) |
| AKV (J) | 33 |
| A (%) | 23 |
| Z (%) | 33 |
| Hardness | HBW 223 |
21-4N shape and dimensions
| 21-4N Round bar: | 1mm-800mm |
| 21-4N Square bar: | 10mm * 10mm-600mm *600mm |
| 21-4N Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
| 21-4N Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
| 21-4N Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
| 21-4N Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |
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