X4CrNiMo16-5-1 1.4418 - EN 10272-2016

Grade	X4CrNiMo16-5-1
European Standard Steel Grade	1.4418
Corresponding Standard	EN 10272-2016 Stainless steel bars for pressure purposes
Classification	Martensitic Stainless Steel

X4CrNiMo16-5-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	Ni	Mo	N
Minimum Value	-	-	-	-	-	15	4	0.8	0.02
Maximum Value	0.06	0.7	1.5	0.04	0.015	17	6	1.5	-

① Particular ranges of sulfur content may provide improvement of particular properties. For machinability, a controlled sulfur content of 0,015 % to 0,030 % is recommended and may be agreed. For weldability, a controlled sulfur content of 0,008 % to 0,030 % is recommended and may be agreed.

X4CrNiMo16-5-1 Mechanical Properties

Diameter or thickness d or b mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
≤160	+QT 760	760~960	≥550	l: ≥16	l: ≥90 (at 20℃) l: ≥40 (at -20℃)
160<d (b)≤250	+QT 760	760~960	≥550	tr: ≥14	tr: ≥70 (at 20℃)
≤160	+QT 900	900~1100	≥700	l: ≥16	l: ≥80 (at 20℃)
160<d (b)≤250	+QT 900	900~1100	≥700	tr: ≥14	tr: ≥60 (at 20℃)

a) Axial： l；Tangential：tr.

b) +QT= quenched and tempered.

Approximate Comparison Table

International Organization for Standardization		European Standard
ISO	Numerical Grade	EN	Numerical Grade
X4CrNiMo16-5-1	4418-431-77-E	X4CrNiMo16-5-1	1.4418

X4CrNiMo16-5-1 Corresponding Standards(Same grade name, different standards)

1	EN 10088-1-2005
	X4CrNiMo 16-5-1 1.4418
2	EN 10250-4-1999
	X4CrNiMo16-5-1 1.4418
3	EN 10088-3-2005
	X4CrNiMo16-5-1 1.4418
4	EN 10088-3-2014
	X4CrNiMo16-5-1 1.4418
5	ISO 15510-2014
	X4CrNiMo16-5-1 4418-431-77-E
6	ISO 9328-7-2018
	X4CrNiMo16-5-1
7	DIN EN 10088-3-2014
	X4CrNiMo16-5-1 1.4418
8	NF EN 10088-2-2005
	X4CrNiMo16-5-1 1.4418
9	NF EN 10088-1-2005
	X4CrNiMo16-5-1 1.4418
10	NF EN 10028-7-2008
	X4CrNiMo16-5-1 1.4418
11	NF EN 10028-7-2000
	X4CrNiMo16-5-1 1.4418
12	EN 10272-2016
	X4CrNiMo16-5-1 1.4418

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