Composition in %

carbon 0,25

manganese 1,30

chromium 1,30

phosphorus <0,020

sulphur <0,020

molybdenum 0,40

Properties

Density: 7,85

Thermal conductivity at 20°C: 40 Wm°k-1

(18% better than 1.2311/1.2738).

Heat expansion per °C

from +20 to 100 °C: 11,9 x 10-6

from +20 to 200 °C: 12,4 x 10-6

from +20 to 300 °C: 12,8 x 10-6

from +20 to 400 °C: 13,1 x 10-6

YOUNG modulus: 205 000 N/mm2.

Typical values:

YS 0,2: 920 Mpa-134 KSI

UTS: 1020 Mpa-148 KSI - EL 5,65: 13,5%

Poisson coeficient: 0,3