Hello,<br /><br />Does anyone know what type of aluminum is used to fabricate boat hard top or t-tops? I just purchased over $200 worth of various sized 6061-t6 schedule 40 aluminum pipe. When I tried to bend it it cracked and broke. Maybe I should have checked out my material better. If I can't bend it I'll just have to change my design plan. Any help would be great.<br /><br />Thanks