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Spain UNE F.2121 Free cutting steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: F.2121 / F.2121
Category Grade Standard Region/Area Standard Content
Metals F.2121 UNE 36021 Spain Free cutting steels

Chemical composition(mass fraction)(wt.%) of the F.2121

Element Min Max Similar
Si 0.1500 0.4000 -
S 0.1500 0.2500 -
P - 0.0600 -
Mn 0.5000 0.9000 -
C 0.0700 0.1300 -

Mechanical Properties of steel grade F.2121

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)
913 (≥) 358 (≥) 23 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade F.2121

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 - -     0.42 -  
764 166 - 21.3 241   -  
575 - 41 21.2   142 343

Heat Treatment of steel grade F.2121

Heat treated : 1994°C - 1962°C

Technological Curves of steel grade F.2121

Cross Reference Table (Equivalent Grade) of F.2121

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