Never seen babbitt until today. I didn't know what it was at the scrap yard but I knew I had to have it.
It's marked "QQT-390 Grade 2 CSR"
A quick google search shows the following composition:
Tin: 88-90%
Antimony: 7-8%
Lead: less than 0.35%
Copper: 3-4%
Total weight is 33lbs in 5 notch-bars. Cost: $23 and some sweat.