PROBAD - standard solution for code-based strength calculations of pressure parts.

PROBAD is the standard solution for code-based strength calculations of pressure parts. PROBAD is successfully used for years worldwide by leading companies of the boilers and vessels industry, in plant design and in piping construction.
The latest status of standards in PROBAD and a continuously technical development is guaranteed by PROBAD maintenance agreements.
PROBAD offers solutions for the effective use of calculation modules in accordance with the standards:

  • AD 2000-sheets, TRD-sheets
  • EN 12952, EN 13480, EN 13445, EN 1591
  • ASME Sect. I., ASME Sect. VIII./1, ASME B31.1, ASME B31.3
  • WRC 107, WRC 297

PROBAD 2017: Partnership between IBM and SIGMA

Mühlheim/Unna, Germany, January 2017

We are pleased to inform you that
IBM Deutschland GmbH and SIGMA Ingenieurgesellschaft mbH
have entered a partnership for 2017 with the aim of transferring the sole responsibility for PROBAD to the company SIGMA from the 1st of January 2018.

The PROBAD modules for strength calculations of pressure parts will remain a stand-alone part in the product range of SIGMA Ingenieurgesellschaft. Long-term PROBAD users as well as new customers will benefit from the integration of the PROBAD engineering tools into the software development and  experienced engineering team of  SIGMA.
You are welcome to visit the SIGMA website  or contact us directly to learn more about the continuous development and the next steps of PROBAD.

for additional information please see:

Press release PROBAD 170101


PROBAD features

The main factors some highlights of the PROBAD calculation modules:

  • PROBAD is of modular design; this enables licensing individual modules in relation to the company needs (see available PROBAD solutions).
  • PROBAD allows not only re-checking defined component dimensions, but also designing or optimizing components.
  •  The comprehensive component databases of PROBAD include additional norms and standards regarding dimensions, wall thickness´, tolerances etc.  
  • Material databases containing EN, DIN and ASME materials are supporting the calculation modules.
  • The values can be edited or modified individually by the user.
  • Standard-safety factors of the calculation rules are stored and can be modified in accordance with the projects requirements.
  • For all PROBAD modules screen inputs and print outputs are currently available in German and English. The dialog system provides convenient help screens, either as text or graphic.
  • PROBAD is continuously subject to technical changes and novelties as also for monitoring systems etc.
  • Based on the various maintenance agreements, SIGMA GmbH is obliged to keep the solutions up to date by annual releases, so the PROBAD modules are always following the actual codes/standards.
  • For PROBAD licensees with maintenance contract a hotline is available.

Download der PROBAD feature list here

PROBAD system requirements and licensing

PROBAD system requirements

The system requirements of all PROBAD program versions are as following:

System requirements of single user licenses and PC-workstations in the network

  • Windows 10, 8 or 7
  • Pentium processor, 32 MB Extended Memory, VGA graphic
  • approx. 400 KB free RAM, up to 120 MB free harddisk space depending on the number of codes licensed
    USB connection for the license key

System requirements network server
Installation of the license manager on a Server PC accessible by all users in the network.
Windows 10, Windows 8, Windows 7 (32-/64-bit) Windows Server 2008/2012.

In case of integrating ROHR2 into company-wide or countrywide networks (WAN) please contact us.

Scope of delivery and license key
The programs´ scope of delivery contains
- the program data (by download including online manual
- a license key (USB dongle)

The software does not run without the license key. New releases are unlocked by actualization of the license key.

The program license is available as perpetual single user license or network license basing on the license conditions.
Licensing a program requires the acceptance of the terms of use by signing a system contract. Contract samples are available upon request.
- Single user license installation or
- Network license server installation