	Applies To
	Product(s):	AutoPIPE,
	Version(s):	All
	Area:	Warning, Library
	Original Author:	Bentley Technical Support Group

Problem:

While using AutoPIPE, the following warning appears,

W726-37: Expansion at T1 is outside of temperature range at point XXX for material YYYY

Why?

How to resolve?

Solution:

There are a number of reasons why this warning would appear:

Reason #1:

According to the Library data and material properties specified, temperature load case(s) may be requesting a library value that is outside of the range of data in the library.

Review the material's library information to confirm temperature setting is within the data range specified in the library.

A. Start AutoPIPE, and select Tool> Library> Table type = Spec, Library name = B313-18, Action = Scan:

Press OK button

B. AutoPIPE Viewer should automatically start.

C. Find the SPECIFICATION material in the document using the search tool (example: A312-TP304L).

D. Noticed the temperature range for the Specific material (example: = -425 deg F to 1500 deg F) . If the temperature setting is outside of this range for this information the warning will be displayed.

Question: Is this the only place to look for Material Information ?

Answer: Correct, NO!

e. Again, select Tool> Library> Table type = Material, Library name = B313-18, Action = Scan:

Press OK button

f. AutoPIPE Viewer should automatically start.

g. Find the Material referenced from the SPEC table above in the document using the search tool (example: AU-TYPE 304).

D. Noticed the temperature range for the Material table (example: = -325 deg F to 1400 deg F) . If the temperature setting is outside of this range for this information the warning will be displayed.

Reason #2:

If a new customized material library has been created and used, the warning above may appear if there are problems with the material file. Review the SRC file and compiled errors to determine any potential problems.

As mentioned above, if the temperature setting is outside the library's range, then the message above would be displayed. However, AutoPIPE would automatically linearly interpolate Expansion data, other data will use last value in material library, to be used in the analysis. Again the user has the option to suppress these warnings at their discretion.

Workaround:

1. Select a different material that has data ranges on both tables that meet or exceed the Temperature setting.

2. Create a custom material library that extends the temperature and respective data ranges.

FAQs:

Question:

Do you know why the allowable for 304L is set so low?

Answer:

When it comes to questions related to why the material temperature range is not more inclusive, the answer is because of the resource used for the material file had such a limited range of temperatures. Again, user can choose from the workarounds mentioned above.

Example:

Using AutoPIPE 12.08.04.09, the following warning is displayed:

W726-37: Expansion at T1 is outside of temperature
range at point A00 for material N08XXX

Review General Model Options:

Using the Library Editor, review both the Material Table and Specification table of the material file

In this case the W726-37: message will continue to appear because the configured temperature in the model exceeds the highest temperature value documented in the referenced library.

Workaround:

1. Manually update the referenced library to create a custom material library that expands the default material library range

2. Manually set any temperature related material data as needed on the Operating Pressure and Temperature dialog or Press/Temp/PipeID tab of the input grids

3. Post an IDEA asking development to expand the Default material temperature range.

W726-37: Expansion at (load-case) is outside of temperature range at point XXX for material YYYY...

Problem:

Solution:

Reason #1:

Reason #2:

Workaround:

FAQs:

See Also