Machine Design Databook Episode 1 part 2 pot

TABLE 1-24Typical uses of tool steel Cold-Work Water-Hardening Steels T 140 W 4 Cr 50 Fast finishing tool steel Finishing tools with light feeds, marking tools, etc.. PROPERTIES OF ENGINE

TABLE 1-24

Typical uses of tool steel

Cold-Work Water-Hardening Steels

T 140 W 4 Cr 50 Fast finishing tool steel Finishing tools with light feeds, marking tools, etc

Cold-Work Oil and Air-Hardening Steels

T 110 W 2 Cr 1 Nondeforming tool steels Engraving tools, press tools, gauge, tape, dies, drills, hard

T 90 Mn 2 W 50 Cr 45

T 65

T 55 Cr 70 Shock-resisting tool steels Pneumatic chisels, rivet shape, shear blades, heavy-duty

T 50 Cr 1 V 23

T 55 Ni 2 Cr 65 Mo 3

Hot-Work and High-Speed Steel

T 33, W 9 Cr 3 V 38 Hot-work tool steels Castings dies for light alloys, dies for extrusion, stamping,

T 35 Cr 5 Mo W 1 V 30

T 75 W 18 Co 6 Cr 4 V 1 Mo 75 High-speed tool steels Drills, reamers, broaches, form cutters, milling cutters,

Low-Carbon Mold Steel

T 16 Ni 80 Cr 60 Carburizing steels After case hardening for molds for plastic materials

T 10 Cr 5 bee 75 V 23

a

May also be used as hot-work steel

Source: IS 1871, 1965

PROPERTIES OF ENGINEERING MATERIALS

TABLE 1-25

Mechanical properties of carbon and alloy steel bars for the production of machine parts

Ultimate tensile strength,
sut

Minimum elongation (gauge length

a

p), %

Notes: a
, area of cross section;##

minimum;‡maximum;

steel designations in parentheses are old designationsSource: IS 2073, 1970

PROPERTIES OF ENGINEERING MATERIALS