Sage 300

Is it possible to setup pricing with Sage where there would be a discount based on the quantity. We are looking for a way for this to be done in Sage: to setup pricing for the first item to be free and then the next item a price needs to be paid.

I am producing steel pipe (item 2) from a coil of steel (item 1). for example an 8000 kg steel coil produces 1200 - 6 foot pipes and 34 kgs of waste steel. How do I deal with the scrap steel?