DIN 17742 Grade NiCr20TiAl precipitation hardened (+P)

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Description

The highly creep-resistant aviation material NiCr20TiAl with the material number 2.4631 is contained in the Werkstoff-Leistungsblatt der Deutschen Luftfahrt editions WL 2.4631-1 : 1993-08, WL 2.4631-2 : 1993-08 and WL 2.4631-100 : 1993-08. DIN 17742 among other things contains the material NiCr20TiAl with the material number 2.4952. The material is hardenable, highly creep-resistant and scale-resistant up to about 1000 °C. NiCr20TiAl is corrosion-resistant, yet vanadin-pentoxide, sodium- und sulphur compounds can lead to hot-gas corrosion. Application for gas turbine blades, gas turbine rings and discs as well as for screws for operating temperatures up to about 815 °C. Processing properties: Formability: good (annealed) Weldability: possible, but not common (Werkstoff-Leistungsblatt der Deutschen Luftfahrt/WL: material specification of the German aviation)

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Temperature	Value
Density	20.0 °C	8.2 - 8.3 g/cm³ Show Material materials with Density of 8.2 - 8.3 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	215 - 222 GPa Show Material materials with Elastic modulus of 215 - 222 GPa
	100.0 °C	212 - 217 GPa Show Material materials with Elastic modulus of 212 - 217 GPa
	200.0 °C	205 - 210 GPa Show Material materials with Elastic modulus of 205 - 210 GPa
	300.0 °C	202 - 204 GPa Show Material materials with Elastic modulus of 202 - 204 GPa
	400.0 °C	195 - 197 GPa Show Material materials with Elastic modulus of 195 - 197 GPa
	450.0 °C	193 GPa Show Material materials with Elastic modulus of 193 GPa
	500.0 °C	189 - 191 GPa Show Material materials with Elastic modulus of 189 - 191 GPa
	550.0 °C	184 GPa Show Material materials with Elastic modulus of 184 GPa
	600.0 °C	179 - 183 GPa Show Material materials with Elastic modulus of 179 - 183 GPa
	700.0 °C	161 - 176 GPa Show Material materials with Elastic modulus of 161 - 176 GPa
	800.0 °C	130 - 166 GPa Show Material materials with Elastic modulus of 130 - 166 GPa
	900.0 °C	150 - 153 GPa Show Material materials with Elastic modulus of 150 - 153 GPa
	1000.0 °C	140 GPa Show Material materials with Elastic modulus of 140 GPa

Elongation	20.0 °C	12 - 20 % Show Material materials with Elongation of 12 - 20 %
Elongation, transverse	20.0 °C	15 - 25 % Show Material materials with Elongation, transverse of 15 - 25 %
Hardness, Brinell	20.0 °C	277 [-] Show Material materials with Hardness, Brinell of 277 [-]
Reduction of area	20.0 °C	12 - 25 % Show Material materials with Reduction of area of 12 - 25 %
Tensile strength	20.0 °C	1000 - 1400 MPa Show Material materials with Tensile strength of 1000 - 1400 MPa
Tensile strength, transverse	20.0 °C	1030 MPa Show Material materials with Tensile strength, transverse of 1030 MPa
Yield strength Rp0.2	20.0 °C	600 - 725 MPa Show Material materials with Yield strength Rp0.2 of 600 - 725 MPa
	200.0 °C	568 - 745 MPa Show Material materials with Yield strength Rp0.2 of 568 - 745 MPa
	250.0 °C	564 MPa Show Material materials with Yield strength Rp0.2 of 564 MPa
	300.0 °C	560 - 735 MPa Show Material materials with Yield strength Rp0.2 of 560 - 735 MPa
	350.0 °C	550 MPa Show Material materials with Yield strength Rp0.2 of 550 MPa
	400.0 °C	540 - 726 MPa Show Material materials with Yield strength Rp0.2 of 540 - 726 MPa
	450.0 °C	530 MPa Show Material materials with Yield strength Rp0.2 of 530 MPa
	500.0 °C	520 - 716 MPa Show Material materials with Yield strength Rp0.2 of 520 - 716 MPa
	550.0 °C	510 MPa Show Material materials with Yield strength Rp0.2 of 510 MPa
	600.0 °C	500 - 696 MPa Show Material materials with Yield strength Rp0.2 of 500 - 696 MPa
	650.0 °C	480 MPa Show Material materials with Yield strength Rp0.2 of 480 MPa
	700.0 °C	628 MPa Show Material materials with Yield strength Rp0.2 of 628 MPa
	800.0 °C	431 MPa Show Material materials with Yield strength Rp0.2 of 431 MPa
	900.0 °C	196 MPa Show Material materials with Yield strength Rp0.2 of 196 MPa
	1000.0 °C	39 MPa Show Material materials with Yield strength Rp0.2 of 39 MPa
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Yield strength Rp0.2, transverse	20.0 °C	640 MPa Show Material materials with Yield strength Rp0.2, transverse of 640 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.11E-5 - 1.19E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.11E-5 - 1.19E-5 1/K
	200.0 °C	1.21E-5 - 1.27E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.21E-5 - 1.27E-5 1/K
	300.0 °C	1.29E-5 - 1.32E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.29E-5 - 1.32E-5 1/K
	400.0 °C	1.35E-5 - 1.37E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.35E-5 - 1.37E-5 1/K
	500.0 °C	1.37E-5 - 1.41E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.37E-5 - 1.41E-5 1/K
	600.0 °C	1.4E-5 - 1.48E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.4E-5 - 1.48E-5 1/K
	700.0 °C	1.45E-5 - 1.55E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.45E-5 - 1.55E-5 1/K
	800.0 °C	1.51E-5 - 1.63E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.51E-5 - 1.63E-5 1/K
	900.0 °C	1.58E-5 - 1.74E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.58E-5 - 1.74E-5 1/K
	1000.0 °C	1.88E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.88E-5 1/K
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Max service temperature, long		0 - 1000 °C Show Material materials with Max service temperature, long of 0 - 1000 °C
Melting point		1400 °C Show Material materials with Melting point of 1400 °C	Typical for Nickel Chromium Alloy
Specific heat capacity	20.0 °C	430 - 460 J/(kg·K) Show Material materials with Specific heat capacity of 430 - 460 J/(kg·K)
	100.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	200.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	300.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	400.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	450.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	500.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	550.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	600.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	700.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
	800.0 °C	590 J/(kg·K) Show Material materials with Specific heat capacity of 590 J/(kg·K)
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Thermal conductivity	20.0 °C	13 W/(m·K) Show Material materials with Thermal conductivity of 13 W/(m·K)
	100.0 °C	12 - 14 W/(m·K) Show Material materials with Thermal conductivity of 12 - 14 W/(m·K)
	200.0 °C	15 W/(m·K) Show Material materials with Thermal conductivity of 15 W/(m·K)
	300.0 °C	16 W/(m·K) Show Material materials with Thermal conductivity of 16 W/(m·K)
	400.0 °C	17 W/(m·K) Show Material materials with Thermal conductivity of 17 W/(m·K)
	500.0 °C	18 W/(m·K) Show Material materials with Thermal conductivity of 18 W/(m·K)
	600.0 °C	20 W/(m·K) Show Material materials with Thermal conductivity of 20 W/(m·K)
	700.0 °C	23 W/(m·K) Show Material materials with Thermal conductivity of 23 W/(m·K)
	800.0 °C	25 W/(m·K) Show Material materials with Thermal conductivity of 25 W/(m·K)
	900.0 °C	28 W/(m·K) Show Material materials with Thermal conductivity of 28 W/(m·K)
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Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.24E-6 Ω·m Show Material materials with Electrical resistivity of 1.24E-6 Ω·m

Chemical properties

Property	Value
Aluminium	1 - 1.8 % Show Material materials with Aluminium of 1 - 1.8 %
Boron	8E-3 % Show Material materials with Boron of 8E-3 %
Carbon	0.04 - 0.1 % Show Material materials with Carbon of 0.04 - 0.1 %
Chromium	18 - 21 % Show Material materials with Chromium of 18 - 21 %
Cobalt	1 - 2 % Show Material materials with Cobalt of 1 - 2 %
Copper	0.2 % Show Material materials with Copper of 0.2 %
Iron	1.5 - 3 % Show Material materials with Iron of 1.5 - 3 %
Manganese	1 % Show Material materials with Manganese of 1 %
Nickel	65 - 68.7 % Show Material materials with Nickel of 65 - 68.7 %
Phosphorus	0.02 - 0.03 % Show Material materials with Phosphorus of 0.02 - 0.03 %
Silicon	1 % Show Material materials with Silicon of 1 %
Sulfur	0.015 % Show Material materials with Sulfur of 0.015 %
Titanium	1.8 - 2.7 % Show Material materials with Titanium of 1.8 - 2.7 %