Properties
At room temperature, ES-1's yield (tensile strength before deformation) is 224,500 PSI (1547 MPa), ultimate yield (breaking point) is 263,700 PSI (1818 MPa). At 900°C, yield is 193,900 PSI (1337 MPa), and ultimate yield is 246,700 (1701 MPa). Rockwell hardness is 45.6 (455 HV10). For toughness, the Charpy notch impact is 56.2 foot-pounds (76 J) at room temperature, and 42.7 ft-lbs (58 J) at -40F (-40°C).
ES-1 is a balance of cost, tensile strength, high temperature tensile strength and toughness. By varying the heat treatment to include water or liquid nitrogen quenching, or omitting the normalization heat-treat to permit work hardening, properties can be improved. ES-5, with an economical air and water quench, provides 244,800 PSI of yield, and 291,900 PSI ultimate yield.
Read more about this topic: Eglin Steel
Famous quotes containing the word properties:
“The reason why men enter into society, is the preservation of their property; and the end why they choose and authorize a legislative, is, that there may be laws made, and rules set, as guards and fences to the properties of all the members of the society: to limit the power, and moderate the dominion, of every part and member of the society.”
—John Locke (16321704)
“A drop of water has the properties of the sea, but cannot exhibit a storm. There is beauty of a concert, as well as of a flute; strength of a host, as well as of a hero.”
—Ralph Waldo Emerson (18031882)