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HS 556
HS 556 material is UNS SAE AMS 5874C (2007) Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05Zr - 0.05La - 0.20N Solution Heat Treated Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05Zr - 0.05La - 0.20N Solution Heat Treated.
Chemical composition of HS 556, HS 556 mechanical properties, HS 556 datasheet, HS 556 equivalent grade, Heat treatment and temperature process of HS 556.
HS 556 property sheet
HS 556 Spec.
| UNS SAE AMS 5874C (2007) Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05Zr - 0.05La - 0.20N Solution Heat Treated |
Chemical Composition of HS 556
| C: | 0.05 | 0.15 |
| Si: | 0.20 | 0.80 |
| Mn: | 0.50 | 2.00 |
| Ni: | 19.00 | 22.50 |
| Cr: | 21.00 | 23.00 |
| Al: | 0.10 | 0.50 |
| Cu: | Max | Min |
| Ti: | Max | Min |
| Fe: | Max | remaining |
| Mo: | 2.50 | 4.00 |
| Co: | 16.00 | 21.00 |
| W: | 2.00 | 3.50 |
Mechanical Properties of HS 556
| Rp0.2 (MPa) | 931 (≥) |
| Rm (MPa) | 793 (≥) |
| AKV (J) | 13 |
| A (%) | 21 |
| Z (%) | 32 |
| Hardness | HBW 211 |
HS 556 shape and dimensions
| HS 556 Round bar: | 1mm-800mm |
| HS 556 Square bar: | 10mm * 10mm-600mm *600mm |
| HS 556 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
| HS 556 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
| HS 556 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
| HS 556 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |
©Longhai Special Steel 2025
