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Description

1.4668 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.4668

Chemical composition(mass fraction)(wt.%) of the 1.4668

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 0.02-0.08  0.35  0.35  0.015  0.015  17.0-20.0    2.80-3.30  Nb 4.70-5.50   Ti 0.60-1.20
Al 0.30-0.70   B 0.002-0.006
Co ≤ 1.00     Cu   ≤ 0.30

Mechanical Properties of steel grade 1.4668

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)
586 (≥) 751 (≥) 34 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 1.4668

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
21 - -     0.13 -  
829 544 - 11.3 234   -  
132 - 24 42.2   321 132

Heat Treatment of steel grade 1.4668

Heat treated : 1397°C - 1673°C

Technological Curves of steel grade 1.4668


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