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X 2 CrNiMoN 17 13

UNI 8317:1981 — UNI 8317

Chemical composition

wt% · log scale

min – max range
typical value

Mechanical properties

value range by condition

Chemical composition

Element	min	max	Similar	Remarks
C		0.03
Cr	16	18.5
Mn		2
Mo	2.5	3
N	0.1	0.2
Ni	11.5	14.5
P		0.045
S		0.03
Si		1

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
coil, heavy plate, sheet, strip, solution treated	295.00	590.00	35.00
coil, HR, sheet, strip, solution treated						厚板

High/low temperature

Yield strength Rp0.2 (MPa)

Condition	Temperature ℃	max
heavy plates	sheets	550
heavy plates	sheets	500
heavy plates	sheets	450
heavy plates	sheets	400
heavy plates	sheets	350
heavy plates	sheets	300
heavy plates	sheets	250
heavy plates	sheets	200
heavy plates	sheets	150
heavy plates	sheets	100
heavy plates	sheets	50