NiCo20Cr20MoTi | 2.4650 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Successor Application temperature [°C]
2.4650 (DIN 17744 : 2002-09) 2.4650 DIN 17744 : 2002-09 DIN 17744 : 2002-09 replaced by DIN 17744 : 2020-12 Replaced Germany NiCo20Cr20MoTi ≤ 850 1)
1) Remark: The material NiCo20Cr20MoTi with the material number 2.4650, an aviation material according to the Werkstoff-Leistungsblatt der Deutschen Luftfahrt editions WL 2.4650-1 : 1981-03, WL 2.4650-2 : 1983-03 and the Beiblatt 1(03/1983), is applied in the form of strips, sheets and bars for highly heat-resistant construction components. The alloy is a hardenable nickel-chromium-cobalt-molybdenum alloy that shows excellent high temperature tensile strength up to 850 °C and good resistance to oxidation up to approximately 1000 °C and that, caused by the cobalt and molybdenum content, shows good wearing behaviour, too. Application for flying and stationary gas turbines, e.g. for combustion chambers, engine exhaust cones and rings. Processing properties: Formability: good Weldability: good (annealed)

Chemical Composition

Al [%] B [%] C [%] Co [%] Cr [%] Cu [%] Fe [%] Mn [%] Mo [%] P [%] S [%] Si [%] Ti [%] Al+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] 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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Toughness Data (Impact)

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

Material Name Country Standard
NCK20D France AIR 9165
HR 10 Great Britain BS HR 10
HR 206 Great Britain BS HR 206
HR 404 Great Britain BS HR 404
NiCo20Cr20Mo5Ti2Al International ISO 9722
N07263 USA UNS
N07263 USA AMS 5872
N07263 USA AMS 5886
N07263 USA AMS 5966
NiCo20Cr20MoTi Germany DIN 17750
NiCo20Cr20MoTi Germany DIN 17751
NiCo20Cr20MoTi Germany DIN 17752
NiCo20Cr20MoTi Germany DIN 17753

Material Compliance

REACh RoHS
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