C

Si

Mn

P

S

Cr

Mo

Ni

Al

Cu

Fe

0.22-0.29

<0,4

0.6-0.9

<0.025

<0,01

0.9-1.2

0.15-0.30

<0,3

<0.04

<0.3

Other

+QT

Minimum yield strength, ReH (MPa)

345

Tensile strength (tensile strength), Rm (MPa)

540-690

Minimum elongation after break, A (%)

Longitudinal swatches

18

Cross swatches

15

Impact work KV at 0°C 32°F], min., J

Longitudinal patterns

40

Cross patterns

27

Yield strength at 150°C, ReH (MPa)

315

Yield strength at 200°C, ReH (MPa)

305

Yield strength at 250°C, ReH (MPa)

295

Yield strength at 300°C, R eH (MPa)

285

Yield strength at 350°C, ReH (MPa)

265

Yield strength at 400°C, ReH (MPa)

225

Yield strength at 450°C, ReH (MPa)

185