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France AFNOR NF XC25 Quenched and tempered steels - Part 1: technical delivery conditions for specials steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: XC25 / XC 25
Category Grade Standard Region/Area Standard Content
Metals XC 25 NF A35-552-1 France Quenched and tempered steels - Part 1: technical delivery conditions for specials steels

Chemical composition(mass fraction)(wt.%) of the XC 25

Element Min Max Similar
Si 0.1000 0.2500 -
S - 0.0350 -
P - 0.0350 -
Mn 0.4000 0.7000 -
C 0.2300 0.2900 -
Al 0.0200 - -
Si - 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni+Cu - 0.3000 -
Mn 0.4000 0.7000 -
Cu - 0.2000 -
C 0.2300 0.2900 -
Al 0.0200 - -

Mechanical Properties of steel grade XC 25

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)
826 (≥) 114 (≥) 11 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade XC 25

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 - -     0.12 -  
658 426 - 41.3 443   -  
861 - 23 11.2   232 324

Heat Treatment of steel grade XC 25

Heat treated : 1827°C - 1181°C

Technological Curves of steel grade XC 25

Cross Reference Table (Equivalent Grade) of XC 25

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