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ISO 9001:2008R&D Production
In ChinaZ12CKNDWNb21-20-20 material is AFNOR NF A 35-579 Valve steels and alloys for internal combustion engines Valve steels and alloys for internal combustion engines.
Chemical composition of Z12CKNDWNb21-20-20, Z12CKNDWNb21-20-20 mechanical properties, Z12CKNDWNb21-20-20 datasheet, Z12CKNDWNb21-20-20 equivalent grade, Heat treatment and temperature process of Z12CKNDWNb21-20-20.
Z12CKNDWNb21-20-20 |
C: | 0.08 | 0.16 |
Si: | Max | 1.00 |
Mn: | 1.00 | 2.00 |
P: | Max | 0.040 |
S: | Max | 0.030 |
Cr: | 20.00 | 22.50 |
Ni: | 19.00 | 21.00 |
Mo: | 2.50 | 3.50 |
Co: | 18.50 | 21.00 |
W: | 2.00 | 3.00 |
Nb: | 0.75 | 1.25 |
N: | 0.10 | 0.20 |
Rp0.2 (MPa) | 424 (≥) |
Rm (MPa) | 194 (≥) |
AKV (J) | 14 |
A (%) | 14 |
Z (%) | 31 |
Hardness | HBW 144 |
Z12CKNDWNb21-20-20 Round bar: | 1mm-800mm |
Z12CKNDWNb21-20-20 Square bar: | 10mm * 10mm-600mm *600mm |
Z12CKNDWNb21-20-20 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
Z12CKNDWNb21-20-20 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
Z12CKNDWNb21-20-20 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
Z12CKNDWNb21-20-20 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |