Germany · DIN

WStE 420

DIN 17103:1989 — DIN 17103

Chemical composition

Element	min	max	Similar	Remarks
Al	0.02		If nitrogen is additionally fixed by niobium	If nitrogen is additionally fixed by niobium
C		0.2
Cr		0.3
Cu		0.2
Mn	1	1.7
Mo		0.1
N		0.02
Nb		0.05
Ni		1
P		0.035
S		0.03
Si	0.1	0.6
V		0.2
V+Nb		0.22

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
forgings, 100 < d <= 150 mm	≥365	510–670	≥19；≥20		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115
forgings, 150 < d <= 375 mm	≥345	510–670	≥17；≥18		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115
forgings, 24 < d <= 50 mm	≥410	530–680	≥19；≥20		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115
forgings, 375 < d <= 600 mm	≥325	510–670	≥17；≥18		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115
forgings, 50 < d <= 100 mm	≥385	530–680	≥19；≥20		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115
forgings, d <= 24 mm	≥420	530–680	≥19；≥20		≥31 ISO V-Notch acc. to DIN 50115；≥55 ISO V-Notch acc. to DIN 50115

High/low temperature

Yield strength Rp0.2 (MPa)

Condition	Temperature ℃	Approx.
forgings > 375 <= 600 mm	400	147
forgings > 375 <= 600 mm	350	176
forgings > 375 <= 600 mm	300	206
forgings > 375 <= 600 mm	250	226
forgings > 375 <= 600 mm	200	255
forgings > 375 <= 600 mm	150	275
forgings > 375 <= 600 mm	100	294
forgings > 150 <= 375 mm	400	167
forgings > 150 <= 375 mm	350	196
forgings > 150 <= 375 mm	300	226
forgings > 150 <= 375 mm	250	245
forgings > 150 <= 375 mm	200	275
forgings > 150 <= 375 mm	150	294
forgings > 150 <= 375 mm	100	314
forgings >100 <= 150 mm	400	186
forgings >100 <= 150 mm	350	216
forgings >100 <= 150 mm	300	245
forgings >100 <= 150 mm	250	265
forgings >100 <= 150 mm	200	294
forgings >100 <= 150 mm	150	314
forgings >100 <= 150 mm	100	333
forgings > 50 <= 100 mm	400	206
forgings > 50 <= 100 mm	350	235
forgings > 50 <= 100 mm	300	265
forgings > 50 <= 100 mm	250	284
forgings > 50 <= 100 mm	200	314
forgings > 50 <= 100 mm	150	335
forgings > 50 <= 100 mm	100	353
forgings <= 50 mm	400	206
forgings <= 50 mm	350	235
forgings <= 50 mm	300	265
forgings <= 50 mm	250	284
forgings <= 50 mm	200	314
forgings <= 50 mm	150	343
forgings <= 50 mm	100	363