1. Materials selection - some considerations
Economics
Environmental
Political
Market
Aesthetics
Material properties

2. Materials selection - material cost
Relative cost - compared to that of hot rolled ASTM A36 plate (0.29C-1Mn-0.28Si)
(unit wt. basis)

3. Materials selection - environmental
Health hazards
Recycling
when drawing SS to rod
need lubricant
Metals particularly suited to recycling - can be easily sorted, remelted, & shaped
Ceramics usually not recycled - many polymers are
Composites difficult to recycle - difficult to separate fibers from matrix

4. Materials selection - political
Who writes the specs for contract bids?
Will they specify stainless steel rebar in roads & bridges?

5. Materials selection - market
Carrera GT vs ……
Kia
vs ……

6. Materials selection - aesthetics

7. Materials selection - properties

8. Materials selection - properties

9. Materials selection - properties

10. Materials selection - properties
500 MPa
log sf = log r + log P

11. Materials selection - properties
500 MPa