Germany · DIN

12 Ni 19

DIN 17280:1987 — Steels with low temperature toughness; technical delivery conditions for plate, sheet, strip, wide flats, sections, bars and forgings

Chemical composition

Element	min	max
C		0.15
Mn	0.3	0.8
Ni	4.5	5.3
P		0.025
S		0.02
Si		0.35
V		0.05

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Impact energy
+N, 30 < s <= 50 mm, 45 < d <= 75 mm	≤380	≤510	≤19	≤50；≤70
+N, s <= 30 mm, d <= 45 mm	≤390	≤510	≤19	≤50；≤70
+N or +A, 30 < s <= 50 mm, 45 < d <= 75 mm	≤380	≤510	≤19	≤50；≤70
+N or +A, s <= 30 mm, d <= 45 mm	≤390	≤510	≤19	≤50；≤70
+H+A, 30 < s <= 50 mm, 45 < d <= 75 mm	≤380	≤510	≤19	≤50；≤70
+H+A, s <= 30 mm, d <= 45 mm	≤390	≤510	≤19	≤50；≤70