The database contains physical properties for pipe and component materials. This database is user-editable.
To export the database to RTF, click "Export"; to print, click "Print".
The "Add" and "Save" buttons are disabled if the file is read-only or if the stress units are not set to MPa.
The database in START-PROF is a reference and is fully editable. Review the database contents thoroughly and make any necessary changes: add required materials, properties, etc.
Stresses are stored in internal units (MPa for all codes except ASME, which uses ksi). Editing in other units triggers automatic conversion, which may cause rounding errors. Use ksi for ASME and MPa for other codes to prevent this.
If the operating temperature is below the database minimum, the analysis uses properties at the minimum database temperature (typically 20°C).
To export a material, click "Export" in the materials window and specify the ".mat" file path. Import a material using the "Import" button.
Use "Copy to" to copy a material from one code database to another. Verify the new material properties manually after copying, as some data fields may not transfer.
Material properties used in the analysis are saved in the "ctp" file. Opening a file with materials not in the database prompts you to add them. If materials exist but have different properties, you can: update the database, add a new material, or use existing database properties.
To preserve new materials during reinstallation or upgrade:
1) Back up the SQLite3 files and restore them to the database folder (typically C:\Program Files (x86)\Common Files\STARTPR\Base). Note: New software versions may not be compatible with old database files.
2) Export each new material to individual .mat files (using "Export").
3) Create a project file containing pipes made from all new materials. After installing the new version, open this file and import the materials into the new database.
Contents:
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.1.
Database allowable stresses (SE) include the weld joint efficiency factor E (Table 102.4.3).
Wl - Weld strength reduction factor (Table 102.4.7). The software automatically applies this factor for wall thickness checks and circumferential weld allowable stress (Wc) calculations.
Creep factors are from RD 10-249-98.
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.3.
Database allowable stresses (S) do not include the weld joint efficiency factor E (Table 302.3.3).
Wl - Weld strength reduction factor (Table 302.3.5). The software automatically applies this factor for wall thickness checks and circumferential weld allowable stress (Wc) calculations.
Larson-Miller constant "C" per Appendix V.
Min.temperature - Used for Minimum Design Metal Temperature (MDMT) calculation per ASME B31.3 323.2.2.
A, B, C, D - Curve number from Fig. 323.2.2A.
Creep factors are from RD 10-249-98.
The "Maximum f=1.2" option allows the stress range factor f=1.2 for this material.
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.4.
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.5.
Database allowable stresses (SE) include the longitudinal or spiral weld joint factor E (Table 502.2.1).
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.8.
Yield Stress (Sy) and Tensile Stress (Su) include the temperature derating factor "T" (Table 841.1.8-1) but exclude the longitudinal weld joint factor E (Table 841.1.7-1).
Allowable stresses are stored in ksi. Temperature in °F.
Data sourced from ASME B31.9.
Database allowable stresses (S) exclude the weld joint efficiency factor E.
Allowable stresses are stored in MPa. Temperature in °C.
Data sourced from EN 10216-2-2013, EN 10216-5-2013, EN 10217-7-2014.
SRTt - Mean creep rupture strength for specified lifetime in hours.
Allowable stresses are stored in MPa. Temperature in °C.
Data sourced from DL/T 5366-2014.
Allowable stresses are stored in MPa. Temperature in °C.
Data sourced from DL/T 5366-2014.
Allowable stresses are stored in MPa. Temperature in °C.
Allowable stresses in database (S) exclude the weld joint efficiency factor E (Table 3).
Allowable stresses are stored in MPa. Temperature in °C.
Data sourced from GB 50316-2008.
Database allowable stresses (S) exclude the weld joint efficiency factor E (Table 3.2.5).
Allowable stresses are stored in MPa. Temperature in °C.
Yield Stress (Sy) and Tensile Stress (Su) include the temperature derating factor "T" but exclude the longitudinal weld joint factor E.
Allowable stresses are stored in MPa.
Allowable stresses are stored in MPa. Temperature in °C.
, 
, 
, 
,
- Long-term failure envelope stress values for
pipes and joints, multiplied by temperature factor 
.
Calculated per Annex B,C ISO 14692-2:2017. Two test types are required
to determine all necessary data per Annex C ISO 14692-2:2017.
Points (5) R=1:0 and (6) R=0:-1 are calculated automatically per ISO 14692-2:2017 B.2.5, B.2.6.
Point (4) R=0:1 - Hoop to axial stress ratio 0:1 (pipe tension under zero pressure). ah(0:1)=0, al(0:1)=Sa,LT,0:1,xx. See ISO 14692-2:2017 B.2.4.
Point (3) R=1:1 - Hoop to axial stress ratio 1:1 (partially restrained pipe under internal pressure). ah(1:1)=Sh,LT,Rtest,xx, al(1:1)=Sa,LT,Rtest,xx. See ISO 14692-2:2017 B.2.3.
Point (2) R=2:1 - Hoop to axial stress ratio 2:1 (unrestrained pipe under internal pressure). ah(2:1)=Sh,LT,2:1,xx, al(2:1)=Sa,LT,2:1,xx. See ISO 14692-2:2017 B.2.2.
For
bends and reducers: Qualified
stress 
multiplied by temperature factor .
Used only for ISO 14692-3:2002.
For
tees, nozzles and saddles:
Qualified stress multiplied
by temperature factor . Used
only for ISO 14692-3:2002.
Elasticity
modulus - axial 
,
hoop 
and lateral
G, all multiplied
by temperature factor
Linear
expansion factor 
and axial Poisson's ratio
(Vh/a)
Gxx - Regression gradient at temperature (ISO 14692-3:2017 6.1.1)
fc - Cyclic long-term strength factor (ISO 14692-3:2017 A.2)
Input all properties per pipe and fiberglass manufacturer data.
Used only for Start-Elements in equipment stub-in node analysis.
Allowable stresses are stored in MPa. Temperature in °C.
Tables for each steel contain nominal
allowable stress [σ], elasticity
modulus E, linear expansion
factor α and Poisson's ratio
μ versus temperature and design service
life. Data adapted from
RD 10-249-98. Yield strength at 20°C 
is used for test pressure analysis
(see "wall
thickness analysis").
For RD 10-249-98 analysis, allowable stress is interpolated based on service life in hours (1 year = 8760 hours).
Allowable stresses are stored in MPa. Temperature in °C.
Per RD 10-400-01 section 3.1, data are adapted from RD 10-249-98 for heating network steels up to 350°C. Yield strength at 20°C is used for test pressure analysis (see "wall thickness analysis"). Yield strength values are also used for fatigue analysis per RD 10-400-01.
Allowable stresses are stored in MPa. Temperature in °C.
Data adapted from GOST R 55596-2013.
Allowable stresses are stored in MPa. Temperature in °C.
Standard
resistance values for pipe and weld materials include tensile strength
and yield
strength 
, elasticity
modulus E, linear
expansion factor α and
Poisson's ratio μ versus
temperature. Set according to regional standards and pipe specifications.
Allowable stresses are stored in MPa. Temperature in °C.
Seamless pipe data adapted from
RD 10-249-98 at 200,000-hour design life; welded pipe data from GOST 34233.1-2017.
Yield strength at 20°C
is used for test pressure analysis
(see "wall thickness
analysis").
Plasticity factor is used for cryogenic piping analysis (below -70°C).
Allowable stresses are stored in MPa. Temperature in °C.
Allowable stresses are stored in ksi. Temperature in °F.
Enable HDPE checkbox for PE materials:
Allowable stresses are stored in MPa. Temperature in °C.
Ea, Eh, G - Axial elastic modulus, hoop elastic modulus and shear modulus versus temperature and wall thickness Th
Sa (0:1), Sa (0:-1), Sa (2:1), Sh (2:1) - Allowable stress envelope values
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