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Italy UNI Fe490-1 Hollow unalloyed quality steel bars for machining and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Fe490-1 / Fe 490-1
Category Grade Standard Region/Area Standard Content
Metals Fe 490-1 UNI 7730 Italy Hollow unalloyed quality steel bars for machining

Chemical composition(mass fraction)(wt.%) of the Fe 490-1

Element Min Max Similar
Si - 0.5000 -
S - 0.0450 -
P - 0.0450 -
Mn - 1.6000 -
C - 0.2000 -

Mechanical Properties of steel grade Fe 490-1

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)
961 (≥) 821 (≥) 34 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade Fe 490-1

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
42 - -     0.41 -  
471 818 - 23.3 444   -  
711 - 24 31.2   343 441

Heat Treatment of steel grade Fe 490-1

Heat treated : 1652°C - 1737°C

Technological Curves of steel grade Fe 490-1

Cross Reference Table (Equivalent Grade) of Fe 490-1

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