RH-200 motor casings

  •    Vikram Sarabhai Space Centre
  •      Thiruvananthapuram
  •     Space Division


These are motor casings for the Rohini series sounding rocket, RH-200. The motor casings consist of a rolled shell, with a formed dome. High tensile strength materials like 15CDV6 are used for manufacturing

Construction details

Materials: 15CDV6.


  • Shell OD: 207 mm
  • Shell Thickness: 1.6 mm
  • Overall Assembly Length: 1546.6 mm

Critical aspects

  • Max allowable weld mismatch: 0.2mm
  • Pressure test at 70kg/cm2
  • 100% RT with an acceptance criteria for porosity of t/10