thanks for your reply

tell me about it its so hard to find but its expected of us (this is my first project in the seconds year of my mechanical engineering degree) as you say they probably dont even know exactly what goes in it

well i did tried ford (as have others in my class) but as i expected noboday could be bothered to speak to me

the hardness tests were vickers, its proving quite hard to find a full range of conversion tables for vickers - UTS i can only find conversions for a very small range of vickers numbers