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NiCr29Fe | 2.4642 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification
2.4642 (DIN 17742 : 2020-12) NiCr29Fe 2.4642 DIN 17742 : 2020-12 Supersedes DIN 17742 : 2002-09 Valid Germany NiCr29Fe 3.4 1)
1) Remark: NiCrFe alloy for power plant parts and chemical applications. The alloy possesses an excellent resistance to lye-induced stress cracking corrosion as well as very high resistance to strongly oxidizing mediums including fluoride-polluted hot nitric acid and to very high temperatures in oxidizing atmospheres containing sulphur. Application for the recycling of nuclear fuels, for steam generators in nuclear power stations as well as for steam generators in pressurized water reactors, for plants for the production of sodium sulfate (Mannheim-furnace) and for components of furnaces that are fired with heavy fuel. Processing properties: Formability: good Weldability: good

Chemical Composition

Al [%] C [%] Cr [%] Cu [%] Fe [%] Mn [%] P [%] S [%] Si [%] Ti [%] Remainder
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Material Compliance

REACh RoHS
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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] Elongation A [%]
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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] Mean Specific Heat Capacity [kJ/(kg*K)]
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Welding and Joining

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

Condition Temperature [°C] Creep Tensile Strength at 10^4 h [MPa] Creep Tensile Strength at 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 Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
H06690 China YB/T 5355 1)
NS3105 China YB/T 5355 1)
H06690 China GB/T 15007 1)
NS3105 China GB/T 15007 1)
NiCr29Fe Europe EN 10302
NiCr29Fe9 International ISO 9722
NCF690 Japan JIS G 4901 1)
NCF690 Japan JIS G 4902 1)
NCF690TP Japan JIS G 4903 1)
NFC690 South Korea KS D 3531 1)
NFC690 South Korea KS D 3532 1)
N06690 USA UNS 2)
1484 USA ASME Code Case N-20 2)
SB-163 UNS N06690 USA ASME SB-163 2)
SB-166 UNS N06690 USA ASME SB-166 2)
SB-167 UNS N06690 USA ASME SB-167 2)
SB-168 UNS N06690 USA ASME SB-168 2)
B163 UNS N06690 USA ASTM B163 2)
B166 UNS N06690 USA ASTM B166 2)
B167 UNS N06690 USA ASTM B167 2)
B168 UNS N06690 USA ASTM B168 2)
B366 UNS N06690 USA ASTM B366 2)
B564 UNS N06690 USA ASTM B564 2)
B924 UNS N06690 USA ASTM B924 2)
NiCr29Fe Germany DIN 17750
NiCr29Fe Germany DIN 17751
NiCr29Fe Germany DIN 17752
NiCr29Fe Germany DIN 17753
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Producer/Supplier/Trade names

Tradename Supplier
Alloy 690 Enpar Sonderwerkstoffe GmbH, Gummersbach
2.4642 Faulenbach Schmiedetechnik GmbH, Wiehl
VDM alloy 690 VDM Metals GmbH, Werdohl
Nicrofer 6030 VDM Metals GmbH, Werdohl