What is the density of Carbon steel SA 516 Gr. 70?

The density of mild steel is 7,861.093 kg/m³ (490.751 lb/ft³ , 0.2839 lb/in³)

http://en.wikipedia.org/wiki/Carbon_steel

Compare with 0.28333 lb/in³

Pressure Vessel Handbook 13 Ed.

by Eugene F. Megyesy

pg 388

ISBN-10: 091445823X

ISBN-13: 9780914458234