Italy · UNI

Fe E 420

UNI 9161:1987 — UNI 9161

Chemical composition

wt% · log scale

min – max range
typical value

Mechanical properties

value range by condition

Chemical composition

Element	min	max	Similar	Remarks
Al		0.02
C		0.12
Mn		1.3
Nb		0.02
P		0.025
S		0.025
Si		0.4
V		0.02

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
coil, sheet, hot rolled, t < 3 mm, heavy plate	420	470 590.00	18；19		27
coil, sheet, hot rolled, t < 3 mm, HR						厚板 91.00
coil, sheet, hot rolled, t = > 3 mm, heavy plate	420	470 590.00	23；24		27
coil, sheet, hot rolled, t = > 3 mm, HR						厚板 91.00

High/low temperature

Impact energy Kv/Ku (J)

Condition	Temperature ℃	max	Approx.
n/a	heavy plates	-20	27
n/a	heavy plates	-20	27
n/a	heavy plates	-20	27
n/a	heavy plates	-20	27