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F.6403 Grado KT

Spain UNE F.6403GradoKT Welded structural steel with special mechanical properties and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: F.6403GradoKT / F.6403 Grado KT
Category Grade Standard Region/Area Standard Content
Metals F.6403 Grado KT UNE 36081 Spain Welded structural steel with special mechanical properties

Chemical composition(mass fraction)(wt.%) of the F.6403 Grado KT

Element Min Max Similar
V 0.0200 0.1000 -
Si - 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.3000 -
Nb 0.0150 0.0500 -
Mo - 0.1000 -
Mn 0.5000 1.4000 -
Cu - 0.3500 -
Cr - 0.2500 -
C - 0.1500 -
Al 0.0150 - -

Mechanical Properties of steel grade F.6403 Grado KT

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)
984 (≥) 336 (≥) 42 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade F.6403 Grado KT

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
34 - -     0.32 -  
327 336 - 41.3 441   -  
228 - 14 23.2   441 424

Heat Treatment of steel grade F.6403 Grado KT

Heat treated : 1631°C - 1433°C

Technological Curves of steel grade F.6403 Grado KT

Cross Reference Table (Equivalent Grade) of F.6403 Grado KT

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