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25-7-4 Grade 110

China SY/T 25-7-4Grade110 耐蚀合金套管和油管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25-7-4Grade110 / 25-7-4 Grade 110
Category Grade Standard Region/Area Standard Content
Metals 25-7-4 Grade 110 SY/T 6950 China 耐蚀合金套管和油管

Chemical composition(mass fraction)(wt.%) of the 25-7-4 Grade 110

Element Min Max Similar
PRE 40.0000 - -
N - 0.2700 -
Mo - 4.0000 -
Ni - 7.0000 -
Cr - 25.0000 -
C - 0.0200 -

Mechanical Properties of steel grade 25-7-4 Grade 110

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)
647 (≥) 854 (≥) 24 41 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 25-7-4 Grade 110

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
31 - -     0.24 -  
326 832 - 44.3 134   -  
121 - 22 23.2   231 412

Heat Treatment of steel grade 25-7-4 Grade 110

Heat treated : 1376°C - 1739°C

Technological Curves of steel grade 25-7-4 Grade 110

Cross Reference Table (Equivalent Grade) of 25-7-4 Grade 110

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