I would like to reduce the allowable stress by a few percent in STEEL. Is that possible?


There are several options to apply reduced allowable stresses. In the STEEL and RF‑STEEL Members add-on modules, you can select the Manually option in Column D in Window "1.2 Materials" and then change limit stresses in the following columns (see Figure 01).

As an alternative, you can create a user-defined material in the material library and specify individual material properties (yield strength, strengths) for it (see Figure 02).


reduce limit stress create material allowable stress

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RFEM Steel and Aluminum Structures

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD
RSTAB Steel and Aluminum Structures
STEEL 8.xx

Add-on Module

Stress analysis of steel members

Price of First License
760.00 USD