ROHR2 Static and Dynamic

Program System for Static and Dynamic Analysis of Complex Piping and Steel Structures

  • Stress analyses according to a great number of standards like ASME, EN, ISO14692, KTA, CODETI and RCCM.
  • Modules included in the ROHR2 Static and Dynamic:
    - Internal pressure analysis for pipes, bends, reducers and branches
    - ROHR2nozzle Nozzle analysis acc. to standards like API, NEMA, EN ISO
    - ROHR2iso       Generation of isometrics and part lists

  • Included and optional interface modules enable you to integrate ROHR2 perfectly into your workflow.

ROHR2 Scope of delivery

ROHR2 Scope of delivery

Modules included in the ROHR2 Static and Dynamic:

  • ROHR2nozzle Nozzle analysis acc. to standards like API, NEMA, EN ISO
  • ROHR2iso       Generation of isometrics and part lists

Country specific program versions or floating licenses may differ from this specification.
The programme description included in our offer is binding.

Stress codes in ROHR2 Static and Dynamic

Steel pipes


ASME B31.1, ASME B31.3, ASME B31.4, ASME B31.5, ASME B31.8
EN 13480
Equivalent stresses according to von Mises and Tresca

Nuclear Power

ASME Cl. 1, ASME Cl. 2, ASME Cl. -3
ASME Cl. 1, Fatigue analysis
KTA 3201.2, KTA 3211.2
RCC-M Cl.1, RCC-M Cl.2, RCC-M Cl.3

Buried pipes

EN 13941


B31.4 Chapter IX
B31.8 Chapter VIII

GRP Pipes

ISO 14692

Plastic Pipes


Steel frameworks

Stress analysis for Structural Steel Sections following:
DIN 18800
EN 1993

ROHR2 user interface

The graphical user interface is available in german and english language.
Calculation output in english, german, french and spanish language.

Program license

ROHR2 is available as single user license (stand-alone) or network license (floating license)
for perpetual use (purchase) or as rental license.


Included and optional interface modules enable you to integrate ROHR2 perfectly into your workflow.
A comprehensive number of interface modules is part of the ROHR2 standard package.

  • PROBAD  - Pipe classes import
  • Neutral CAD Interface including Export AVEVA PDMS/ E3D - ROHR2
  • DXF format Import
  • CSV format Import
  • Export Interface into the Support Design Programs LICAD, FLEXPERTE, CASCADE
  • CAESAR II Import and  CII Export
  • CAEPIPE Import

  • SINETZ Export
  • PIPENET Import/ Export
  • FLOWNEX Import/ Export
  • Load-time-functions e.g. FLOWMASTER, AFT Impulse Import


Optional interfaces are available to integrate ROHR2 into your workflow:

  • ROHR2 CAD Interface package: PCF, PDS, PASCE, PXF, SDNF Interface
  • ROHR2 FEZEN Database extension (available soon)

Please refer to the ROHR2 Interface pages or contact us for further details.

What´s behind ROHR2?

Expertise in pipe analysis is shown in the product name:
ROHR means PIPE in German language.

ROHR2 is made by engineers
Started and created by one of the main software vendors in Europe - mbp in Germany - in the late 1960s, ROHR2 continues its success by SIGMA from 1989, accompanied by EDS Software in the 90´s.
From the year 2000 on, the complete licensing and sales activities are in the hands of SIGMA.
SIGMA is an engineering company basing on pipe engineering as well as software development.
The result is a field tested product, strongly adapted to the user’s needs.

ROHR2 means system integration
ROHR2 offers a large number of interfaces for the transfer of data from and to CAD and CAE-systems.
Additionally ROHR2win, the graphical user interface of ROHR2, includes various export and import formats, working with graphics, texts and tables for viewing and documentation purposes.
The integration of ROHR2 into your workflow is additionally supported by third-party interface products.

ROHR2 is up-to-date
Experienced pipe engineers and program developers answer the users´ questions. The software is being developed continuously in order to incorporate the ongoing changes in the stress calculation codes and norms but also to improve the user interface and extend the capabilities of ROHR2 according to the users´ needs.

ROHR2 means quality
The software releases are tested and verified by highest internal quality standards and extensive field tests. The software maintenance includes periodical updates (via internet and program -CD),  service releases as well as personal user support by qualified pipe engineers and software developers.
ROHR2 is one of the most frequently used pipe static software in the world.

ROHR2 is the unique completely interactive piping analysis software and hence it offers significant time and cost reduction to your piping department which makes it part of the daily work in engineering companies worldwide.

ROHR2 System requirements

ROHR2 System requirements

The programs´ scope of delivery contains

  • the program data by download
  • the program documentation, html and pdf – format
  • the ROHR2 license key (USB dongle or Software License key)


The system requirements of all ROHR2 program versions are as following:

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

  • PC min. 8 GB RAM, 16 GB recommended
  • Windows 11/10 (64-bit)
  • Screen resolution minimum 1280 x 720 px, 1920 x 1080 px recommended
  • USB port (not in case of SL Licenses)
  • Connection via Internet for activation of the program license *) and program updates
  • .NET Framework 4 8
  • OpenGL 3.2

*) Activation by phone/email or internet

System requirements of the network server
In addition to the requirements for single user licenses:

  • Installation of the HASP license manager on a Server PC accessible by all users in the network
  • Windows 11/10, Windows Server 2022/2019/2016 (64-bit)

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

Sales Team and Downloads

How to contact our Sales team:

by phone +49 (0)2303 332 33-0
by fax       +49 (0)2303 332 33-50
using the  contact form
by e-mail

or by standard mail:
  SIGMA Ingenieurgesellschaft mbH
  Bertha-von-Suttner-Allee 19
  D-59423 Unna