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Germany DIN DIN EN 10028-2, 1.7703 Specialsteel Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.7703
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 1.7703 Steam Turbine Balde DIN Germany Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties

Chemical composition(mass fraction)(wt.%) of the 1.7703

C Si Mn Ni P S Cr Mo V N Nb Ti Cu B Ca
0.11 -0.15 ≤0.10 0.30 -0.60 ≤0.25 ≤0.015 ≤0.005 2.00 -2.50 0.90 -1.10 0.25 -0.35 ≤0.012 ≤0.07 ≤0.03 ≤0.20 ≤0.002 ≤0.015

Mechanical Properties of steel grade 1.7703

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)
956 (≥) 659 (≥) 31 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade 1.7703

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
12 - -     0.12 -  
183 616 - 41.3 344   -  
573 - 41 12.2   443 433

Heat Treatment of steel grade 1.7703

Heat treated : 1869°C - 1279°C

Technological Curves of steel grade 1.7703

Relevant standard of 1.7703

DIN EN 10028-2 Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties DIN-EN-10028-2.pdf

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