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20CrMoV13-5-5, 1.7779

Description

China GB EN 10216-2: 2014, 20CrMoV13-5-5, 1.7779 Specialsteel Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 20CrMoV13-5-5, 1.7779
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 20CrMoV13-5-5, 1.7779 Austenite GB China Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties

Chemical composition(mass fraction)(wt.%) of the 20CrMoV13-5-5, 1.7779

C Si Mn Ni P S Cr Mo V Al Cu
0.17 -0.23 0.15 -0.35 0.30 -0.50 ≤0.30 ≤0.025 ≤0.010 3.00 -3.30 0.50 -0.60 0.45 -0.55 ≤0.04 ≤0.30

Mechanical Properties of steel grade 20CrMoV13-5-5, 1.7779

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)
797 (≥) 711 (≥) 33 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 20CrMoV13-5-5, 1.7779

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 - -     0.43 -  
426 877 - 13.3 332   -  
962 - 24 33.2   333 443

Heat Treatment of steel grade 20CrMoV13-5-5, 1.7779

Heat treated : 1934°C - 1814°C

Technological Curves of steel grade 20CrMoV13-5-5, 1.7779

Relevant standard of 20CrMoV13-5-5, 1.7779

EN 10216-2: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties EN-10216-2:-2014.pdf

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