Structural Steel 21CMoV5-7, 21CMoV5.7, 21CMoV5.7, 1.7709, 21CrMoV5.7, 1.7709, 21CrMoV5.11, 1.8070, high temperature boiler steels for energy industries

21CMoV5-7 Structural Steel Properties Data

Chemical Composition of steel 21CMoV5-7 Structural Steel: ,Cross Reference

21CMoV5-7 Structural Steel Applications and Specifications

21CMoV5-7 alloy structural steel and its 1.7709 replacement alloys belong to the group of high temperature boiler steels for energy industries. They are used in the production of components/subassemblies for the power industry, working at the temperatures up to 550 oC for small parts and for large forgings. The main applications of these grades of steel are rotors of steam turbines, rotor blades, shaft forgings, reservoirs and covers for up to 550 ℃ temperatures, nuts, tubes for high temperatures up to 540 ℃.

Mechanical properties at room temperature for 21CMoV5-7 Structural Steel:

Tensile Strength,Rm(MPa)

Yield Strength,Rp 0.2(MPa)



Reduction of area,(%)


Product shapes we supply:

Cross Reference, Equivalent, Similar of 21CMoV5-7 Structural Steel grade:

21CMoV5-7 21CMoV5-7 1.7709 21CrMoV5-7, 1.7709, 21CrMoV5-11, 1.8070

Conditions & Properties

  • +A Soft annealed
  • +AC Annealed to achieve spheroidization of the carbides
  • +QT Quenched and tempered
  • +WW Warm worked
  • +N Normalized
  • +NT Normalized and tempered
  • +AT Solution annealed
  • +C Cold drawn / Hard
  • +CR Cold rolled
  • +PE Peeled
  • +T Tempered