Selection of rectangular cross-section by section modulus

sherazi21st

Hello,

I'm designing a cone clutch for 30hp engine with 3000rpm. I've designed few parts and now want select a rectangular cross-section for the section modulus 1180mm³. There are tables available for selection of standard sections like I-beam etc but I failed to find for rectangular section. Both width and height are unknown. What is known is only the section modulus. Can anyone help me. I need in urgent.

ABID KHAN