DEGRADATION OF MECHANICAL PROPERTIES OF IRON ACCORDING TO TEMPERATURE

Gray iron

Ductile iron

Low carbon steel castinhg

Low Alloy steel casting

Degradation of tensile strength at 750°F

<15%

<15%

<15%

<15%

Degradation of yield strength

-

<15%

<15%

<15%

Degradation of elongation strength at 750°F

-

<15%

<15%

<15%

Degradation of resistance at 1100°F

<50%

<50%

<90%

<50%

Degradation of resistance at 1300°F

>75%

>75%

>95%

>80%

QI

< 500

38000

55000

50000/85000