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Spain UNE 3C30 Quenched and tempered steels. Part 2: technical delivery conditions for unalloyed quality steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3C30 / 3 C 30
Category Grade Standard Region/Area Standard Content
Metals 3 C 30 UNE 36051-2 Spain Quenched and tempered steels. Part 2: technical delivery conditions for unalloyed quality steels

Chemical composition(mass fraction)(wt.%) of the 3 C 30

Element Min Max Similar

Mechanical Properties of steel grade 3 C 30

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)
166 (≥) 854 (≥) 31 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 3 C 30

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
23 - -     0.12 -  
928 138 - 31.3 242   -  
783 - 42 23.2   422 434

Heat Treatment of steel grade 3 C 30

Heat treated : 1787°C - 1122°C

Technological Curves of steel grade 3 C 30

Cross Reference Table (Equivalent Grade) of 3 C 30

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