8.5 TABLE 8.2: ALLOY COMPOSITIONS OF STRUCTURAL STEELS Compositions in Percent * Mn 0 . 28- 0.33 0 . 40-0. 60 Mn AISI 4130 Steel Si 0 .20- 0 . 35 HY-100 Steel Si * Ni Cr 0. 80-1.10 Cr 0.20 0.10-.40 0.15- 0 . 35 2 . 25- 3.50 1. 0-1.8 * Mo 0.15- 0.25 * Mo 0.2- 0.6 Not available from the Moon--must be shipped from Earth. Original data from: Eshbach , 0. W. ed., Handbook of Engineering Fundamentals, 3rd ed., p. 1361, John Wiley & Sons, 1975. Masubuchi, K., Materials for Ocean Engineering, p. 49, MIT Press, 19 72 . ~1 ....."'"'""'"'"
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