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3 Ch 2 B 8 F

Bulgaria BDS 3Ch2B8F Alloyed tool steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3Ch2B8F / 3 Ch 2 B 8 F
Category Grade Standard Region/Area Standard Content
Metals 3 Ch 2 B 8 F BDS 7938 Bulgaria Alloyed tool steels

Chemical composition(mass fraction)(wt.%) of the 3 Ch 2 B 8 F

Element Min Max Similar
W 7.5000 9.0000 -
V 0.2000 0.5000 -
Si 0.1500 0.4000 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.3500 -
Mn 0.1500 0.4000 -
Cu - 0.3000 -
Cr 2.2000 2.7000 -
C 0.3000 0.4000 -

Mechanical Properties of steel grade 3 Ch 2 B 8 F

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)
584 (≥) 965 (≥) 14 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 3 Ch 2 B 8 F

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
44 - -     0.23 -  
647 787 - 42.3 424   -  
865 - 44 22.2   342 343

Heat Treatment of steel grade 3 Ch 2 B 8 F

Heat treated : 1829°C - 1853°C

Technological Curves of steel grade 3 Ch 2 B 8 F

Cross Reference Table (Equivalent Grade) of 3 Ch 2 B 8 F

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