MECHANICAL PROPERTIES OF IRON AT ROOM TEMPERATURE

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MECHANICAL PROPERTIES OF IRON AT ROOM TEMPERATURE

Gray iron

Ductile iron

Low carbon steel castinhg

Low Alloy steel casting

Tensile strength (Ksi) [U]

25 to 50

60 to 100

70

90

Yield strength (Ksi)

-

40 to 60

45

60

Elongation (%)  [EL]

<1

20

26

23

Hardness  (BHN)

160 to 210

1720 to 220

120 to 160

180 to 220

Charpy test - V-shaped notch [J] at 20°C

1.5 - 7

12 - 20

25 - 50

60 - 120

Crack growth resistance
(MPa   m)

11 - 19

45 - 100

50 - 175

50 - 175