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X10CrMoVNb9-1 | 1.4903 Material Datasheet

Material Test Series Values
Material Standard Values

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Material Description

Material Number	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
1.4903 (DIN EN 10216-2 : 2025-02)	1.4903	DIN EN 10216-2 : 2025-02	Supersedes DIN EN 10216-2 : 2014-03	Valid	Germany	X10CrMoVNb9-1	1.1	1)
1) Remark: Seamless steel tube for pressure purposes with specified elevated temperature properties. The steel grade meet the essential requirements of Directive 2014/68/EU.

Chemical Composition

Al [%]	C [%]	Cr [%]	Cu [%]	Mn [%]	Mo [%]	N [%]	Nb [%]	Ni [%]	P [%]	S [%]	Si [%]	Ti [%]	V [%]	Zr [%]
blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
1) Source: blur

Mechanical Properties

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Specimen Direction	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]
blur	blur	blur	blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	blur	blur	blur	1)
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1) Source: blur

Physical Properties

Temperature [°C]	Density [g/cm³]	Young's Modulus [GPa]	Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1]	Thermal Conductivity [W/(m*K)]	Specific Electrical Resistance [µΩm]
blur	blur	blur	blur	blur	blur	1)
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1) Source: blur

Toughness Data (Impact)

Condition	Nominal Size [mm]	Temperature [°C]	Specimen Shape	Specimen Direction	Notch Impact Energy [J]
blur	blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	blur	1)
1) Source: blur

Creep Rupture Behaviour

Temperature [°C]	Creep Tensile Strength at 10^4 h [MPa]	Creep Tensile Strength at 10^5 h [MPa]	Creep Tensile Strength at 2*10^5 h [MPa]	Creep Tensile Strength at 2,5*10^5 h [MPa]
blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	1)
1) Source: blur

Heat Treatment

Heat Treatment	Temperature [°C]	Medium
blur	blur	blur	1)
blur	blur	blur	1)
1) Source: blur

Cross Reference

Material Name	Country	Standard
10Cr9Mo1VNbN	China	GB/T 5310	1)
X10CrMoVNb9-1	Europe	EN 10216-2
A335 Grade P91	USA	ASTM A335	1)
P91	USA	ASTM A335	1)
Grade P91	USA	ASTM A335	1)
K90901	USA	UNS	1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
X10CrMoVNb9-1	BARTHEL Kesselrohre Boilertubes GmbH, Neuss
X10CrMoVNb9-1	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
X10CrMoVNb9-1	Salzgitter Mannesmann Stahlhandel GmbH, Düsseldorf
X10CrMoVNb9-1	pauly STAHLHANDEL, Essen
X10CrMoVNb9-1	rff Rohr Flansch Fitting Handels GmbH, Bremen