What is the computer programs for steel construction field?

FOR MODELLING IN STEEL STRUCTURE AUTOCAD , REVITB STRUCTE IS THE THE BEST OPTION. 

FOR DESIGN PURPOSE STAAD PRO,ETABS AND TAKLA IS THE BEST.

Tekla and autocad is best option

For designing purpose, softwares like ETAB, STAAD PRO, SAFE, SAP, MBS.

For estimating purpose, please prepare your excel sheet.

as usual microsoft nav. we are using this when i was college

Microsoft nav.it is the best program for evry industry to use.

Microsoft Nav. is the best program for any industry specially when it comes to production , raw materials , ERP , Stock , HR.

they have about1000 module which can be customized based on your need. if you have a steel manufacture or steel implementation project or even selling steel in a channel base or corporate base Microsoft Nav will help you a lot to reach the best business practice.