Page 8: of Maritime Reporter Magazine (April 15, 1974)

10 Maritime Reporter/Engineering News

Our two ship cutaways illustrate the economic advantage of Armco

CRYONIC 5 Steel. Regardless of design, for about the same ma- terial cost of four 9% nickel steel tanks, you can get five tanks of

CRYONIC 5 steel. A bonus in cargo capacity. Or, in other terms, any tank built with CRYONIC 5 will reduce material cost about 20%.

In addition, this 5% nickel alloy steel has essentially the same strength and toughness as higher alloyed 9% nickel steel. In fact, no design changes are required in switching from 9% nickel tanks to Armco CRYONIC 5. The allowable design stress is the same for both steels (ASME, API).

Because of this performance capability, and CRYONIC 5 steel's major price advantage, we think it will become the standard ma- terial for liquid ethylene and methane (LNG) service.

Comparison of Charpy V-Notch Toughness

CRYONIC 5, 9% Nickel and Aluminum

L-Longitudinal T-Transverse

I 5 L and T

C 9% NICKEL-L 9% NICKEL-T -300 -200 -100 0

TEST TEMPERATURE, °F 5083-0 ALUMINU

T