C

Si

Mn

P

S

Cr

Mo

Ni

V

Al

Cu

Fe

0.17-0.23

0.15-0.50

<1,0

<0.025

<0.01

10.0 -12.5

0.8-1.2

0.3 -0.8

0 .25-0.35

<0.04

<0 ,03

Other

+NT (+QT)

yield points, min., ReH, MPa

490

Tensile strength (tensile strength), min., Rm, MPa

690-840

Relative elongation, min., %

Longitudinal swatches

17

Cross patterns

14

KV impact work at 20° C, min, J

Longitudinal swatches

40

Cross Patterns

27

Yield strength at 200°C, ReH (MPa)

430

Yield strength at 250°C, ReH (MPa)

415

Yield strength at 300°C, ReH (MPa)

390

Yield strength at 350°C, ReH (MPa)

380

360

Yield strength at 450°C, ReH (MPa)

330

Yield strength at 500°C, ReH (MPa)

290

Yield strength at 550°C, ReH (MPa)

250