X10CrMoVNb9-1 1.4903 - NF EN 10216-2-2007

Grade	X10CrMoVNb9-1
	1.4903
Corresponding Standard	NF EN 10216-2-2007 Pressurized seamless steel tubes for high temperatures
Classification	Alloy Steel

X10CrMoVNb9-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^①	Mo	N	V	Nb	Al
Minimum Value	0.08	0.2	0.3	-	-	8	-	-	0.85	0.03	0.18	0.06	-
Maximum Value	0.12	0.5	0.6	0.02	0.01	9.5	0.4	0.3	1.05	0.07	0.25	0.1	0.04

◎ Elements not included in this table shall not be intentionally added to the steel without the agreement of the purchaser, except for elements which may be added for finishing the cast. All appropriate measures shall be taken to prevent the addition of undesirable elements from scrap or other materials used in the steel making process.

① Option 2: In order to facilitate subsequent forming operations, an agreed maximum copper content lower than indicated and an agreed specified maximum tin content shall apply

X10CrMoVNb9-1 Mechanical Properties

thickness T mm	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
Steel: T ≤ 16	630~830	or ReH ≥450	l ≥19；t≥17	20℃：l ≥ 40,t≥27
Steel: 16 < T ≤ 40	630~830	or ReH ≥450	l ≥19；t≥17	20℃：l ≥ 40,t≥27
Steel: 40 < T ≤ 60	630~830	or ReH ≥450	l ≥19；t≥17	20℃：l ≥ 40,t≥27
Steel: 60 < T ≤ 100	630~830	or ReH ≥450	l ≥19；t≥17	20℃：l ≥ 40,t≥27

◎ l-longitudinal；t-transverse

① Impact test verification mandatory for wall thickness T ≥ 16 mm.

X10CrMoVNb9-1 Corresponding Standards(Same grade name, different standards)

1	EN 10088-1-2005
	X10CrMoVNb 9-1 1.4903
2	EN 10028-2-2009
	X10CrMoVNb9-1 1.4903
3	EN 10302-2008
	X10CrMoVNb 9-1 1.4903
4	ISO 9329-2-1997
	X10 CrMoVNb 9-1
5	ISO 9328-2-2018
	X10CrMoVNb 9-1
6	EN 10222-2-2017
	X10CrMoVNb9-1 1.4903
7	EN 10028-2-2017
	X10CrMoVNb9-1 1.4903
8	NF EN 10216-2-2007
	X10CrMoVNb9-1 1.4903
9	NF EN 10088-1-2005
	X10CrMoVNb9-1 1.4903
10	NF EN 10253-2-2007
	X10CrMoVNb9-1 1.4903

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