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X10CrMoVNb9-1 | 1.4903 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor Successor VDA 231-106 classification Application temperature [°C]
1.4903 (VdTÜV WB 511-3 : 2019-03) X10CrMoVNb9-1 1.4903 VdTÜV WB 511-3 : 2019-03 VdTÜV WB 511-3 : 2019-03 replaced by VdTÜV WB 511-3 : 2024-06 Replaced Germany X10CrMoVNb9-1 X10CrMoVNb9-1 1.1.2 -10 - 650 1)
1) Remark: High-temperature steel for pressure vessels according to AD 2000 W4 and W12, for pressure equipment acc. to directive 2014/68/EU and for nuclear engineering.

Chemical Composition

Al [%] C [%] Cr [%] Mn [%] Mo [%] N [%] Nb [%] Ni [%] P [%] S [%] Si [%] V [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

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

Condition 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]
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Toughness Data (Impact)

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Welding and Joining

Procedure Welding and Joining - Evaluation Preheating [°C] Interpass Temperature [°C]
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Creep Rupture Behaviour

Condition Nominal Size [mm] 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] 1% Creep Limit at 10^4 h [MPa] 1% Creep Limit at 10^5 h [MPa]
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Heat Treatment

Heat Treatment Step Temperature [°C] Holding Time [h] Medium
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Cross Reference

Material Name Country Standard
F 91 Germany VdTÜV WB 511/3 1)
A336 Grade F91 USA ASTM A336 2)
SA-336 Grade F91 USA ASME SA-336 2)
K90901 USA UNS 3)
Grade F91 USA
F91 USA
X10CrMoVNb9-1 Germany VdTUEV WB 511-3
1) Source: VdTÜV WB 511/3
2) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
3) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Producer/Supplier/Trade names

Tradename Supplier
X10CrMoVNb9-1 BGH Edelstahl Siegen GmbH 1)
X10CrMoVNb9-1 voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg 1)
X10CrMoVNb9-1 BRÜCK GmbH Ensheim, Saarbrücken 1)
X10CrMoVNb9-1 Buderus Edelstahl GmbH, Wetzlar 1)
X10CrMoVNb9-1 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten 1)
X10CrMoVNb9-1 Rosswag GmbH, Pfinztal-Kleinsteinbach 1)
X10CrMoVNb9-1 KB Schmiedetechnik GmbH, Hagen 1)
X10CrMoVNb9-1 Kind & Co., Edelstahlwerk, Wiehl 1)
X10CrMoVNb9-1 SIEPMANN-WERKE GmbH & Co. KG, Warstein 1)
X10CrMoVNb9-1 Schmiedewerke Gröditz GmbH, Gröditz 1)
X10CrMoVNb9-1 Schmiedewerk Stooss AG, Hedingen 1)
X10CrMoVNb9-1 SeAH CSS, Changwon 1)
1) Source: VdTÜV WB 511-3 Beiblatt : 2019-03