in order to vs for

in order to do something

with the purpose or intention of doing or achieving something

She arrived early in order to get a good seat.In order to get a complete picture, we will need further information.

for

preposition

  used to show purpose or function 

a machine for slicing bread 

Let's go for a walk. 
Are you learning English for pleasure or for your work? 
What did you do that for (= Why did you do that)?

  in order to obtain something 

He came to me for advice. 
For more information, call this number. 
There were over fifty applicants for the job.

 more info: http://oaadonline.oxfordlearnersdictionaries.com/dictionary/for