A "Welding Weight and Cost Calc" app would likely cater to professionals and enthusiasts in the welding industry, providing tools to estimate the weight of welded structures and calculate associated costs. Here are some features that might be included:

Material Selection: Users could input details about the type and dimensions of the materials being welded. This may include information on the type of metal, thickness, and dimensions.

Welding Process Options: The app might offer a selection of different welding processes (e.g., MIG, TIG, Stick) and allow users to choose the most appropriate one for their project.

Joint Type and Design: Users could specify the type of weld joint and design details, as these factors influence the amount of material and welding time required.

Weight Calculation: The app would likely include a feature to estimate the total weight of the welded structure based on the inputs provided. This could be crucial for transportation and structural load considerations.

Cost Estimation: A cost calculation module could consider factors such as material costs, labor costs (based on welding process and time), and any additional expenses related to the welding project.

Unit Conversion: The app might allow users to switch between different units of measurement (e.g., pounds, kilograms, inches, millimeters) for flexibility and convenience.