Read about START-PROF pipe stress analysis software
This analysis calculates the maximum allowable pressure for a given reducer wall thickness, and conversely the minimum wall thickness for a given pressure.
Input data can be copied using the toolbar icon and inserted into any other Start-Elements analysis by using the toolbar icon in that file.
Property |
Description |
Mill tolerance |
Mill tolerance at the time of production. More... |
Corrosion and wear allowance |
Corrosion and wear allowance (working mill tolerance) for wall thickness. More... |
Weld pressure quality factor |
Set based on standards. Can be calculated automatically by pressing . More... |
Operation temperature |
Operation temperature in operation state. More... |
Operation pressure, P |
Operation pressure in operation state. Set for all standards except SNIP 2.05.06-85. More... |
Working pressure, P_{work} |
Working pressure (based on standards). Set when analyzing with SNIP 2.05.06-85. More... |
Steel grade |
Pipe material from the materials database |
If "pressure" is selected, allowable pressure can be calculated by setting nominal wall thickness. If "wall thickness" is selected, minimum allowable wall thickness can be calculated by setting the pressure.
In both cases, wall thickness is set as no lower than the minimum allowable based on:
SNIP 2.05.06-85 section 8.22,
RD 10-249-98 section 3.3.1.3. table 3.3,
GOST 32569-2013,
GOST 32388-2013 table 1.3).
For SNIP 2.05.06-85, an additional wall thickness check is performed using formula (66) section 13.16.
Wall thickness is rounded up to 0.1 mm.