DIN 17744 Grade NiCr22Mo9Nb soft annealed (+A)

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Description

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)

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	8.4 - 8.5 g/cm³ Show Material materials with Density of 8.4 - 8.5 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	209 GPa Show Material materials with Elastic modulus of 209 GPa
	100.0 °C	202 GPa Show Material materials with Elastic modulus of 202 GPa
	200.0 °C	195 GPa Show Material materials with Elastic modulus of 195 GPa
	300.0 °C	190 GPa Show Material materials with Elastic modulus of 190 GPa
	400.0 °C	185 GPa Show Material materials with Elastic modulus of 185 GPa
	500.0 °C	178 GPa Show Material materials with Elastic modulus of 178 GPa
	600.0 °C	170 GPa Show Material materials with Elastic modulus of 170 GPa
	700.0 °C	162 GPa Show Material materials with Elastic modulus of 162 GPa
	800.0 °C	153 GPa Show Material materials with Elastic modulus of 153 GPa
	900.0 °C	142 GPa Show Material materials with Elastic modulus of 142 GPa
	1000.0 °C	128 GPa Show Material materials with Elastic modulus of 128 GPa

Elongation	20.0 °C	30 - 40 % Show Material materials with Elongation of 30 - 40 %
Elongation A100	20.0 °C	25 - 35 % Show Material materials with Elongation A100 of 25 - 35 %
Elongation A80, transverse	20.0 °C	30 - 35 % Show Material materials with Elongation A80, transverse of 30 - 35 %
Elongation, transverse	20.0 °C	30 - 35 % Show Material materials with Elongation, transverse of 30 - 35 %
Hardness, Brinell	20.0 °C	240 [-] Show Material materials with Hardness, Brinell of 240 [-]
Tensile strength	20.0 °C	700 - 1000 MPa Show Material materials with Tensile strength of 700 - 1000 MPa
	100.0 °C	600 - 740 MPa Show Material materials with Tensile strength of 600 - 740 MPa
	200.0 °C	580 - 700 MPa Show Material materials with Tensile strength of 580 - 700 MPa
	300.0 °C	560 - 685 MPa Show Material materials with Tensile strength of 560 - 685 MPa
	400.0 °C	543 - 670 MPa Show Material materials with Tensile strength of 543 - 670 MPa
	450.0 °C	530 - 660 MPa Show Material materials with Tensile strength of 530 - 660 MPa
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Tensile strength, transverse	20.0 °C	760 - 1000 MPa Show Material materials with Tensile strength, transverse of 760 - 1000 MPa
Yield strength Rp0.2	20.0 °C	330 - 415 MPa Show Material materials with Yield strength Rp0.2 of 330 - 415 MPa
	100.0 °C	290 - 350 MPa Show Material materials with Yield strength Rp0.2 of 290 - 350 MPa
	200.0 °C	265 - 320 MPa Show Material materials with Yield strength Rp0.2 of 265 - 320 MPa
	300.0 °C	260 - 300 MPa Show Material materials with Yield strength Rp0.2 of 260 - 300 MPa
	400.0 °C	260 - 280 MPa Show Material materials with Yield strength Rp0.2 of 260 - 280 MPa
	450.0 °C	255 - 270 MPa Show Material materials with Yield strength Rp0.2 of 255 - 270 MPa
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Yield strength Rp0.2, transverse	20.0 °C	380 - 400 MPa Show Material materials with Yield strength Rp0.2, transverse of 380 - 400 MPa
Yield strength Rp1.0	20.0 °C	375 - 445 MPa Show Material materials with Yield strength Rp1.0 of 375 - 445 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	100.0 °C	1.28E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.28E-5 1/K
	200.0 °C	1.11E-5 - 1.31E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.11E-5 - 1.31E-5 1/K
	300.0 °C	1.34E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.34E-5 1/K
	400.0 °C	1.26E-5 - 1.37E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.26E-5 - 1.37E-5 1/K
	500.0 °C	1.41E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.41E-5 1/K
	600.0 °C	1.38E-5 - 1.46E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.38E-5 - 1.46E-5 1/K
	700.0 °C	1.52E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.52E-5 1/K
	800.0 °C	1.49E-5 - 1.58E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.49E-5 - 1.58E-5 1/K
	900.0 °C	1.64E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.64E-5 1/K
	1000.0 °C	1.58E-5 - 1.7E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.58E-5 - 1.7E-5 1/K
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Max service temperature, long		-196 - 450 °C Show Material materials with Max service temperature, long of -196 - 450 °C
Specific heat capacity	20.0 °C	410 - 415 J/(kg·K) Show Material materials with Specific heat capacity of 410 - 415 J/(kg·K)
	100.0 °C	435 J/(kg·K) Show Material materials with Specific heat capacity of 435 J/(kg·K)
	200.0 °C	460 J/(kg·K) Show Material materials with Specific heat capacity of 460 J/(kg·K)
	300.0 °C	480 J/(kg·K) Show Material materials with Specific heat capacity of 480 J/(kg·K)
	400.0 °C	505 J/(kg·K) Show Material materials with Specific heat capacity of 505 J/(kg·K)
	500.0 °C	525 J/(kg·K) Show Material materials with Specific heat capacity of 525 J/(kg·K)
	600.0 °C	550 J/(kg·K) Show Material materials with Specific heat capacity of 550 J/(kg·K)
	700.0 °C	575 J/(kg·K) Show Material materials with Specific heat capacity of 575 J/(kg·K)
	800.0 °C	600 J/(kg·K) Show Material materials with Specific heat capacity of 600 J/(kg·K)
	900.0 °C	625 J/(kg·K) Show Material materials with Specific heat capacity of 625 J/(kg·K)
	1000.0 °C	650 J/(kg·K) Show Material materials with Specific heat capacity of 650 J/(kg·K)
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Thermal conductivity	20.0 °C	9.8 - 10 W/(m·K) Show Material materials with Thermal conductivity of 9.8 - 10 W/(m·K)
	100.0 °C	11.2 W/(m·K) Show Material materials with Thermal conductivity of 11.2 W/(m·K)
	200.0 °C	12.8 W/(m·K) Show Material materials with Thermal conductivity of 12.8 W/(m·K)
	300.0 °C	14.4 W/(m·K) Show Material materials with Thermal conductivity of 14.4 W/(m·K)
	400.0 °C	16.3 W/(m·K) Show Material materials with Thermal conductivity of 16.3 W/(m·K)
	500.0 °C	17 - 17.3 W/(m·K) Show Material materials with Thermal conductivity of 17 - 17.3 W/(m·K)
	600.0 °C	19.3 W/(m·K) Show Material materials with Thermal conductivity of 19.3 W/(m·K)
	700.0 °C	21 W/(m·K) Show Material materials with Thermal conductivity of 21 W/(m·K)
	800.0 °C	22.6 W/(m·K) Show Material materials with Thermal conductivity of 22.6 W/(m·K)
	900.0 °C	24.6 W/(m·K) Show Material materials with Thermal conductivity of 24.6 W/(m·K)
	1000.0 °C	26.7 W/(m·K) Show Material materials with Thermal conductivity of 26.7 W/(m·K)
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Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.28E-6 - 1.29E-6 Ω·m Show Material materials with Electrical resistivity of 1.28E-6 - 1.29E-6 Ω·m
	100.0 °C	1.3E-6 Ω·m Show Material materials with Electrical resistivity of 1.3E-6 Ω·m
	200.0 °C	1.32E-6 Ω·m Show Material materials with Electrical resistivity of 1.32E-6 Ω·m
	300.0 °C	1.33E-6 Ω·m Show Material materials with Electrical resistivity of 1.33E-6 Ω·m
	400.0 °C	1.35E-6 Ω·m Show Material materials with Electrical resistivity of 1.35E-6 Ω·m
	500.0 °C	1.36E-6 Ω·m Show Material materials with Electrical resistivity of 1.36E-6 Ω·m
	600.0 °C	1.36E-6 Ω·m Show Material materials with Electrical resistivity of 1.36E-6 Ω·m
	700.0 °C	1.36E-6 Ω·m Show Material materials with Electrical resistivity of 1.36E-6 Ω·m
	800.0 °C	1.36E-6 Ω·m Show Material materials with Electrical resistivity of 1.36E-6 Ω·m
	900.0 °C	1.35E-6 Ω·m Show Material materials with Electrical resistivity of 1.35E-6 Ω·m
	1000.0 °C	1.32E-6 Ω·m Show Material materials with Electrical resistivity of 1.32E-6 Ω·m
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Chemical properties

Property	Value
Aluminium	0.4 % Show Material materials with Aluminium of 0.4 %
Carbon	0.03 - 0.1 % Show Material materials with Carbon of 0.03 - 0.1 %
Chromium	20 - 23 % Show Material materials with Chromium of 20 - 23 %
Cobalt	1 % Show Material materials with Cobalt of 1 %
Copper	0.5 % Show Material materials with Copper of 0.5 %
Iron	5 % Show Material materials with Iron of 5 %
Manganese	0.5 % Show Material materials with Manganese of 0.5 %
Molybdenum	8 - 10 % Show Material materials with Molybdenum of 8 - 10 %
Nickel	55.45 - 58 % Show Material materials with Nickel of 55.45 - 58 %
Phosphorus	0.01 - 0.02 % Show Material materials with Phosphorus of 0.01 - 0.02 %
Silicon	0.4 - 0.5 % Show Material materials with Silicon of 0.4 - 0.5 %
Sulfur	0.01 - 0.015 % Show Material materials with Sulfur of 0.01 - 0.015 %
Titanium	0.4 % Show Material materials with Titanium of 0.4 %

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