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NiCr22Mo9Nb | 2.4856 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Successor Application temperature [°C]
2.4856 (DIN 17744 : 2002-09) 2.4856 DIN 17744 : 2002-09 DIN 17744 : 2002-09 replaced by DIN 17744 : 2020-12 Replaced Germany NiCr22Mo9Nb -196 - 450 1)
1) Remark: According to VdTÜV-Werkstoffblatt 499 : 2002-09, the material NiCr22Mo9Nb with the material number 2.4856 is used for pressure vessels according to TRB 100 and, with interpreting the AD-Merkblatt editions W 2 and W 10 faithfully to their meaning, for temperatures from -196 to 450 degrees. Furthermore, the highly corrosion-resistant nickel-base alloy is used for ranges of applications in nuclear engineering as far as the rules of nuclear engineering or the object-related specifications permit the use of - 196 to 450 °C. The material is resistant to intercrystalline corrosion. With observance of the generally acknowledged rules of technology, the suitability for welding of this material is approved for submerged-arc welding with welding wires, metal arc welding with sheathed stick electrodes or gas-shielded arc welding with welding wires and welding rods. Welding fillers that have been tested for suitability are to be used, such as welding rods, wire electrodes made from SG-NiCr21Mo9Nb (2.4831) and sheathed stick electrodes E-NiCr20Mo9Nb (2.4621). A preheating ought to be dispensed with. The intermediate layer temperature is 150 °C maximum. A plasma-cutting of this material is possible. NiCr22Mo9Nb is contained in the VdTÜV-Wbl 541 : 2001-06 as coating material for seamless compound pipes (base materials 1.0405 and 1.7380). The following is valid for the material according to DIN 17744 : 2002-09 : the nickel alloy is applied in the form of strips, sheets, tubes, bars, wires and forgings for corrosion-resistant and highly heat-resistant construction components. The alloy possesses an extraordinary resistance to pitting, crevice corrosion, erosion and intercrystalline corrosion, and it also is insusceptible to chlorine-induced stress cracking corrosion. Good resistance to mineral acids, such as nitric, phosphoric, sulphuric and hydrochloric acid as well as to alkalis and organic acids. Because of the excellent properties in terms of high-temperature tensile strength and the wear properties together with good resistance to oxidation and carbonizing at the same time, the material is applicable up to 1050 °C. The as-delivered condition solution annealed ought to be chosen for application temperatures of more than 600 °C. In the temperature range 600 to 800 °C, the material has a tendency towards embrittlement. Application for maritime-technology plants, plants for the production or processing of sulphuric, phosphoric, nitric, hydrofluoric and hydrochloric acid and organic acids and alkalis as well as for flue-gas cleaning systems and plants for the processing of natural gas and oil. Processing properties: Formability: good Weldability: good (Werkstoffblatt/Wbl: material specification Merkblatt: specification sheet)

Chemical Composition

Al [%] C [%] Co [%] Cr [%] Cu [%] Fe [%] Mn [%] Mo [%] Ni [%] P [%] S [%] Si [%] Ti [%]
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Mechanical Properties

Semi-finished Product Condition Strength Abbrevation Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Yield Strength (1.0% offset) [MPa] Elongation A100 [%] Elongation A [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Melting 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] Mean Specific Heat Capacity [kJ/(kg*K)]
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Welding and Joining

Procedure Welding and Joining - Evaluation Interpass Temperature [°C] Added Materials Information
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Heat Treatment

Heat Treatment Temperature [°C]
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Cross Reference

Material Name Country Standard
NS 336 China GB T 15007
NA 21 Great Britain BS 3072
NA 21 Great Britain BS 3073
NA 21 Great Britain BS 3074
NA 21 Great Britain BS 3075
NA 21 Great Britain BS 3076
NiCr22Mo9Nb International ISO 9722
NCF 625 Japan JIS G 4901
NCF 625 Japan JIS G 4902
NCF 625TP Japan JIS G 4903
NFC 625TB Japan JIS G 4904
NCF 625 South Korea KS D 3531
NFC 625 South Korea KS D 3532
N06625 USA UNS
N06625 USA AMS 5581
N06625 USA AMS 5599
N06625 USA AMS 5666
N06625 USA AMS 5837
N06625 USA AMS 5869
N06625 USA AMS 7490
SB-443 UNS N06625 USA ASME SB-443
SB-444 UNS N06625 USA ASME SB-444
SB-446 UNS N06625 USA ASME SB-446
ERNiCrMo-3 USA ASME SFA5.14
B366 UNS N06625 USA ASTM B366
B443 UNS N06625 USA ASTM B443
B444 UNS N06625 USA ASTM B444
B446 UNS N06625 USA ASTM B446
B564 UNS N06625 USA ASTM B564
B704 UNS N06625 USA ASTM B704
B705 UNS N06625 USA ASTM B705
B751 UNS N06625 USA ASTM B751
B834 UNS N06625 USA ASTM B834
B924 UNS N06625 USA ASTM B924
F467 Alloy 625 USA ASTM F467
G28 UNS N06625 USA ASTM G28
ERNiCrMo-3 USA AWS A5.14
EN625 USA MIL SPEC MIL-E-21562
RN625 USA MIL SPEC MIL-E-21562
N06625 USA NACE MR-01-75
625 USA SAE J2515
NiCr22Mo9Nb Germany DIN 17750
NiCr22Mo9Nb Germany DIN 17751
NiCr22Mo9Nb Germany DIN 17752
NiCr22Mo9Nb Germany DIN 17753

Producer/Supplier/Trade names

Tradename Supplier
2.4856 Saarstahl AG, Völklingen
2.4856 Platestahl Umformtechnik GmbH, Lüdenscheid
2.4856 SCHMOLZ + BICKENBACH GUSS GmbH, Krefeld
2.4856 Klaus Kuhn Edelstahlgießerei GmbH, Radevormwald
2.4856 Schoellerwerk GmbH & Co. KG, Hellenthal/Eifel
2.4856 Rolf Kind GmbH, Gummersbach
2.4856 Sprint Metal Edelstahlziehereien GmbH, Hemer
2.4856 NIRONIT Edelstahlhandel GmbH, Rosengarten
2.4856 INTERSTAHL Service GmbH, Wetter
2.4856 Rosswag GmbH, Pfinztal-Kleinsteinbach
2.4856 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
2.4856 Quick Metall GmbH, Forst
Alloy 625 Chr. Höver & Sohn GmbH & Co KG, Lindlar
Alloy 625 F.W. Hempel & Co. Gesellschaft für Spezial-Rostfrei-Metalle mbH, Oberhausen
Alloy 625 ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
Alloy 625 Enpar Sonderwerkstoffe GmbH, Gummersbach
Altemp 625 ATI Flat Rolled Products GmbH, Remscheid
BGH 2.4856 BGH Edelstahl Siegen GmbH
BÖHLER L331 voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
Caronit HDW SCHMOLZ + BICKENBACH GUSS GmbH, Krefeld
Chronin 625 Deutsche Nickel GmbH, Schwerte
Coralloy 625 Chr. Höver & Sohn GmbH & Co. KG, Lindlar
DMV 625 Salzgitter Mannesmann Stainless Tubes GmbH, Mülheim an der Ruhr
ERGILOY 2.4856 Stahlwerk Ergste Westig GmbH, Schwerte
Eternos 2.4856 Remystahl GmbH & Co. KG, Hagen
HAFESTA 625 Hagener Feinstahl GmbH, Hagen
INCONEL alloy 625 Special Metals Deutschland Ltd., Düsseldorf
INCONEL alloy 625 LCF Special Metals Deutschland Ltd., Düsseldorf
Inox 2.4856 INOX-Stahlgesellschaft mbH, Nürtingen
JUNKERALLOY 625 Otto Junker GmbH, Edelstahlgießerei, Simmerath
Märker 4856 Schmidt + Clemens GmbH + Co. KG, Edelstahlwerk Kaiserau, Lindlar
Nicofer 6020 hMo-alloy 625 VDM Metals GmbH, Werdohl
NiCr22Mo9Nb Hoesch Hohenlimburg GmbH, Hagen
NiCr22Mo9Nb pauly STAHLHANDEL, Essen
Nicrofer 6020 hMo VDM Metals GmbH, Werdohl
P 625 Platestahl Umformtechnik GmbH, Lüdenscheid
PHY HT625 Ugitech SA, Ugine
Superimphy 625 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
SY 625 AUBERT & DUVAL Deutschland GmbH, München
TECHALLOY 625 TPS-Technitube Röhrenwerke GmbH, Daun
UR 625 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
Werkstoff 625 ZAPP AG, Ratingen
WR625 Gourd & Co. Valve, Tube & Alloy Supplies & Services, Schwalbach/Ts.

Material Compliance

REACh RoHS
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