VKR beam, what dimension?

[matssj1]

Hello, I am planning to build a patio and intend to use a steel beam as the ridge beam. The span is 4300mm and the load on the beam (snow load + roof) is estimated at 2427 kpm.
I am considering choosing VKR 140x70x5 and wonder if it is sufficient.

/Mats

 

[palbin]

http://www.maskinisten.net/viewtopic.php?t=15912