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ISO 9001:2008R&D Production
In ChinaR20990 material is Chromium metal.
Chemical composition of R20990, R20990 mechanical properties, R20990 datasheet, R20990 equivalent grade, Heat treatment and temperature process of R20990.
C: | Max | 0.12 |
Si: | Max | 0.30 |
Mn: | Max | 0.80 |
Cr: | Max | 19.00 |
Ni: | Max | 14.00 |
Mo: | Max | Min |
Co: | Max | Min |
W: | Max | Min |
Al: | Max | Min |
Cu: | Max | Min |
Ti: | Max | Min |
Fe: | Max | remaining |
Nb: | Max | 1.60 |
Rp0.2 (MPa) | 217 (≥) |
Rm (MPa) | 869 (≥) |
AKV (J) | 31 |
A (%) | 42 |
Z (%) | 32 |
Hardness | HBW 431 |
R20990 Round bar: | 1mm-800mm |
R20990 Square bar: | 10mm * 10mm-600mm *600mm |
R20990 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
R20990 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
R20990 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
R20990 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |