Type: Industrial Inventor: Gregor Company: New Invention Pages Retail Price: USD $ 10,000 Featured: No
High Strength Steel for Aerospace Applications
Two grades of High Strength Steel for Aerospace Applications, AS1 and AS2, have mechanical properties that exceed the double vacuum melted LESCALLOY 4340 VAC-ARC and LESCALLOY 300M VAC-ARC steels (Latrobe Specialty Steel Company). The following table is a comparison of mechanical properties of quenched and tempered AS1, AS2 steels and LESCALLOY 4340 VAC-ARC, LESCALLOY 300M VAC-ARC steels at room temperature.
Table
Steels_______4340____AS1____300M____AS2
Hardness (HRC)___51______54_____56______57
UTS (ksi)________ 269_____290____287_____325
YS (ksi)_________ 225_____230____243_____260
El (%)___________12______14.5___10______10
RA (%)__________40_______52____35______38
CVN (ft-lb)_______ 18_______30____18______18
The cost of charge materials of AS1 and AS2 steels are similar to the cost of charge materials of LESCALLOY 4340 VAC-ARC and LESCALLOY 300M VAC-ARC steels.
