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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 Successor VDA 231-106 classification
2.4642 (DIN 17742 : 2002-09) NiCr29Fe 2.4642 DIN 17742 : 2002-09 DIN 17742 : 2002-09 replaced by DIN 17742 : 2020-12 Replaced Germany NiCr29Fe 3.4 1)
1) Remark: The material NiCr29Fe with the material number 2.4642 is applied in the form of strips, sheets, tubes, bars, wires for power plant parts and chemistry 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] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Yield Strength (1.0% offset) [MPa] Elongation A [%]
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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
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Creep Rupture Behaviour

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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Cross Reference

Material Name Country Standard
NiCr29Fe9 International ISO 9722
NCF 690 Japan JIS G 4901
NCF 690 Japan JIS G 4902
NCF 690TP Japan JIS G 4903
NCF 690TB Japan JIS G 4904
NFC 690 South Korea KS D 3531
NFC 690 South Korea KS D 3532
N06690 USA UNS
1484 USA ASME Code Case N-20
SB-163 UNS N06690 USA ASME SB-163
SB-166 UNS N06690 USA ASME SB-166
SB-167 UNS N06690 USA ASME SB-167
SB-168 UNS N06690 USA ASME SB-168
B163 UNS N06690 USA ASTM B163
B166 UNS N06690 USA ASTM B166
B167 UNS N06690 USA ASTM B167
B168 UNS N06690 USA ASTM B168
B366 UNS N06690 USA ASTM B366
B564 UNS N06690 USA ASTM B564
B924 UNS N06690 USA ASTM B924
NiCr29Fe Germany DIN 17750
NiCr29Fe Germany DIN 17751
NiCr29Fe Germany DIN 17752
NiCr29Fe Germany DIN 17753