8Cr20Si2Ni

This page provides 8Cr20Si2Ni datasheet, 8Cr20Si2Ni mechanical properties, chemical element 8Cr20Si2Ni, technical specifications of 8Cr20Si2Ni steel material properties. 8Cr20Si2Ni performance specifications.

Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 8Cr20Si2Ni GBT China Chinese GB standard of internal combustion engine valve steel bar (GB/T 12773-1991)
11Cr17
Y11Cr17
9Cr18Mo
9Cr18MoV
3Cr16
0Cr17Ni4Cu4Nb
0Cr17Ni7Al
0Cr15Ni7Mo2Al
4Cr9Si2
4Cr10Si2Mo
Datasheet for:Steel Grades:Special Steel:8Cr20Si2Ni

Chemical composition(mass fraction)(wt.%) of the 8Cr20Si2Ni

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
0.75-0.85 1.75-2.25 0.20-0.60 0.03 0.03 19.0-20.5 1.15-1.65

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade 8Cr20Si2Ni

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
283 (≥) 314 (≥) 21 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 221
Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
31 - -     0.31 -  
384 864 - 34.3 241   -  
574 - 43 13.2   243 244
Heat treated : 1574°C - 1349°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
8Cr20Si2Ni GBT China
Chinese GB standard of internal combustion engine valve steel bar (GB/T 12773-1991)
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