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Spain UNE C45K-1 Quenched and tempered steels. Part 2: technical delivery conditions for unalloyed quality steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C45K-1 / C 45K-1
Category Grade Standard Region/Area Standard Content
Metals C 45K-1 UNE 36051-2 Spain Quenched and tempered steels. Part 2: technical delivery conditions for unalloyed quality steels

Chemical composition(mass fraction)(wt.%) of the C 45K-1

Element Min Max Similar
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0350 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.5000 0.8000 -
Cr - 0.4000 -
C 0.4200 0.5000 -

Mechanical Properties of steel grade C 45K-1

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)
462 (≥) 635 (≥) 22 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade C 45K-1

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
12 - -     0.13 -  
658 661 - 34.3 333   -  
874 - 14 11.2   114 434

Heat Treatment of steel grade C 45K-1

Heat treated : 1431°C - 1352°C

Technological Curves of steel grade C 45K-1

Cross Reference Table (Equivalent Grade) of C 45K-1

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