DIN 17744 Grade NiCr21Mo soft annealed (+A)

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Description

According to the VdTÜV-Werkstoffblatt editions VdTÜV-Wbl 432-1 : 1999-06 (sheet metal, strip metal), VdTÜV-Wbl 432-2 : 1999-03 (seamless tube) and VdTÜV-Wbl 432-3 : 1999-06 (bar steel, forging) as well as VdTÜV 541 : 2001-06 (seamless compound pipes, coating material), the material NiCr21Mo with the material number 2.4858 is used for pressure vessels according to TRB 100 and, with interpreting the AD-Merkblatt W 2 faithfully to its meaning, for temperatures from -10 to 450 degrees. The highly corrosion-resistant nickel alloy is used in the nuclear engineering as far as the rules of nuclear engineering or the object-related specifications permit the use of - 10 to 450 °C. With observance of the generally acknowledged rules of technology, the suitability for welding of the nickel alloy is approved for metal-arc welding and gas-shielded arc welding (short arc). A heat treatment is not necessary, a preheating - except for the removal of condensed moisture - ought to be omitted. The maximum holding temperature is 200 °C. The material is cold- and hot-formable and, in accordance with DIN 50914, it is resistant to intercrystalline corrosion in the welded condition, too. The maximum eroding rate in the Huey-test is 0,6 mm/year (mean value of the 5 testing periods) in the as-delivered condition. 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 construction components. The alloy possesses very good resistance to reducing as well as to oxidizing acids, to stress cracking corrosion as well as to pitting and crevice corrosion. It has proven outstandingly worthwile in solutions of sulphuric and phosphoric acid. Applications for the chemical manufacturing technology, for plants for the prevention of air pollution, for tubes for the extraction of oil and gas, for the recycling of nuclear fuel assemblies, for the acid production for cellulose digesters in the paper industry as well as for pickling facilities. Processing properties: Formability: good Weldability: good (Werkstoffblatt/Wbl: material specification Merkblatt: specification sheet)

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Equivalent Materials

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"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.
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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	8.05 - 8.1 g/cm³ Show Material materials with Density of 8.05 - 8.1 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	195 GPa Show Material materials with Elastic modulus of 195 GPa
	100.0 °C	190 GPa Show Material materials with Elastic modulus of 190 GPa
	200.0 °C	185 GPa Show Material materials with Elastic modulus of 185 GPa
	300.0 °C	179 GPa Show Material materials with Elastic modulus of 179 GPa
	400.0 °C	174 GPa Show Material materials with Elastic modulus of 174 GPa
	500.0 °C	168 GPa Show Material materials with Elastic modulus of 168 GPa
	600.0 °C	161 GPa Show Material materials with Elastic modulus of 161 GPa
	700.0 °C	154 GPa Show Material materials with Elastic modulus of 154 GPa
	800.0 °C	142 GPa Show Material materials with Elastic modulus of 142 GPa
	900.0 °C	130 GPa Show Material materials with Elastic modulus of 130 GPa
	1000.0 °C	119 GPa Show Material materials with Elastic modulus of 119 GPa

Elongation	20.0 °C	30 - 35 % Show Material materials with Elongation of 30 - 35 %
Elongation A100	20.0 °C	20 - 30 % Show Material materials with Elongation A100 of 20 - 30 %
Elongation, transverse	20.0 °C	30 % Show Material materials with Elongation, transverse of 30 %
Hardness, Brinell	20.0 °C	190 - 210 [-] Show Material materials with Hardness, Brinell of 190 - 210 [-]
Tensile strength	20.0 °C	500 - 750 MPa Show Material materials with Tensile strength of 500 - 750 MPa
	100.0 °C	520 - 530 MPa Show Material materials with Tensile strength of 520 - 530 MPa
	200.0 °C	490 - 515 MPa Show Material materials with Tensile strength of 490 - 515 MPa
	300.0 °C	480 - 500 MPa Show Material materials with Tensile strength of 480 - 500 MPa
	400.0 °C	470 - 490 MPa Show Material materials with Tensile strength of 470 - 490 MPa
	450.0 °C	465 - 485 MPa Show Material materials with Tensile strength of 465 - 485 MPa
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Tensile strength, transverse	20.0 °C	550 - 750 MPa Show Material materials with Tensile strength, transverse of 550 - 750 MPa
Yield strength Rp0.2	20.0 °C	220 - 240 MPa Show Material materials with Yield strength Rp0.2 of 220 - 240 MPa
	100.0 °C	190 - 205 MPa Show Material materials with Yield strength Rp0.2 of 190 - 205 MPa
	150.0 °C	175 - 190 MPa Show Material materials with Yield strength Rp0.2 of 175 - 190 MPa
	200.0 °C	165 - 180 MPa Show Material materials with Yield strength Rp0.2 of 165 - 180 MPa
	250.0 °C	160 - 175 MPa Show Material materials with Yield strength Rp0.2 of 160 - 175 MPa
	300.0 °C	155 - 170 MPa Show Material materials with Yield strength Rp0.2 of 155 - 170 MPa
	350.0 °C	150 - 165 MPa Show Material materials with Yield strength Rp0.2 of 150 - 165 MPa
	400.0 °C	145 - 160 MPa Show Material materials with Yield strength Rp0.2 of 145 - 160 MPa
	450.0 °C	140 - 155 MPa Show Material materials with Yield strength Rp0.2 of 140 - 155 MPa
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Yield strength Rp0.2, transverse	20.0 °C	220 - 235 MPa Show Material materials with Yield strength Rp0.2, transverse of 220 - 235 MPa
Yield strength Rp1.0	20.0 °C	250 - 270 MPa Show Material materials with Yield strength Rp1.0 of 250 - 270 MPa
	100.0 °C	220 - 235 MPa Show Material materials with Yield strength Rp1.0 of 220 - 235 MPa
	150.0 °C	205 - 220 MPa Show Material materials with Yield strength Rp1.0 of 205 - 220 MPa
	200.0 °C	190 - 205 MPa Show Material materials with Yield strength Rp1.0 of 190 - 205 MPa
	250.0 °C	185 - 200 MPa Show Material materials with Yield strength Rp1.0 of 185 - 200 MPa
	300.0 °C	180 - 195 MPa Show Material materials with Yield strength Rp1.0 of 180 - 195 MPa
	350.0 °C	175 - 190 MPa Show Material materials with Yield strength Rp1.0 of 175 - 190 MPa
	400.0 °C	170 - 185 MPa Show Material materials with Yield strength Rp1.0 of 170 - 185 MPa
	450.0 °C	165 - 180 MPa Show Material materials with Yield strength Rp1.0 of 165 - 180 MPa
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Yield strength Rp1.0, transverse	20.0 °C	250 - 265 MPa Show Material materials with Yield strength Rp1.0, transverse of 250 - 265 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.41E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.41E-5 1/K
	200.0 °C	1.49E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.49E-5 1/K
	300.0 °C	1.52E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.52E-5 1/K
	400.0 °C	1.56E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.56E-5 1/K
	500.0 °C	1.58E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.58E-5 1/K
	600.0 °C	1.6E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.6E-5 1/K
	700.0 °C	1.67E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.67E-5 1/K
	800.0 °C	1.72E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.72E-5 1/K
	900.0 °C	1.76E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.76E-5 1/K
	1000.0 °C	1.79E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.79E-5 1/K
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Max service temperature, long		-10 - 450 °C Show Material materials with Max service temperature, long of -10 - 450 °C
Melting point		1200 - 1480 °C Show Material materials with Melting point of 1200 - 1480 °C	Typical for Nickel Chromium Iron Alloy
Specific heat capacity	20.0 °C	440 J/(kg·K) Show Material materials with Specific heat capacity of 440 J/(kg·K)
	100.0 °C	462 J/(kg·K) Show Material materials with Specific heat capacity of 462 J/(kg·K)
	200.0 °C	488 J/(kg·K) Show Material materials with Specific heat capacity of 488 J/(kg·K)
	300.0 °C	514 J/(kg·K) Show Material materials with Specific heat capacity of 514 J/(kg·K)
	400.0 °C	540 J/(kg·K) Show Material materials with Specific heat capacity of 540 J/(kg·K)
	500.0 °C	565 J/(kg·K) Show Material materials with Specific heat capacity of 565 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	615 J/(kg·K) Show Material materials with Specific heat capacity of 615 J/(kg·K)
	800.0 °C	655 J/(kg·K) Show Material materials with Specific heat capacity of 655 J/(kg·K)
	900.0 °C	680 J/(kg·K) Show Material materials with Specific heat capacity of 680 J/(kg·K)
	1000.0 °C	710 J/(kg·K) Show Material materials with Specific heat capacity of 710 J/(kg·K)
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Thermal conductivity	20.0 °C	10.8 W/(m·K) Show Material materials with Thermal conductivity of 10.8 W/(m·K)
	100.0 °C	12.4 W/(m·K) Show Material materials with Thermal conductivity of 12.4 W/(m·K)
	200.0 °C	14.1 W/(m·K) Show Material materials with Thermal conductivity of 14.1 W/(m·K)
	300.0 °C	15.6 W/(m·K) Show Material materials with Thermal conductivity of 15.6 W/(m·K)
	400.0 °C	16.9 W/(m·K) Show Material materials with Thermal conductivity of 16.9 W/(m·K)
	500.0 °C	18.3 W/(m·K) Show Material materials with Thermal conductivity of 18.3 W/(m·K)
	600.0 °C	19.6 W/(m·K) Show Material materials with Thermal conductivity of 19.6 W/(m·K)
	700.0 °C	21 W/(m·K) Show Material materials with Thermal conductivity of 21 W/(m·K)
	800.0 °C	23.2 W/(m·K) Show Material materials with Thermal conductivity of 23.2 W/(m·K)
	900.0 °C	25.7 W/(m·K) Show Material materials with Thermal conductivity of 25.7 W/(m·K)
	1000.0 °C	28.1 W/(m·K) Show Material materials with Thermal conductivity of 28.1 W/(m·K)
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Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.12E-6 Ω·m Show Material materials with Electrical resistivity of 1.12E-6 Ω·m
	100.0 °C	1.14E-6 Ω·m Show Material materials with Electrical resistivity of 1.14E-6 Ω·m
	200.0 °C	1.18E-6 Ω·m Show Material materials with Electrical resistivity of 1.18E-6 Ω·m
	300.0 °C	1.2E-6 Ω·m Show Material materials with Electrical resistivity of 1.2E-6 Ω·m
	400.0 °C	1.24E-6 Ω·m Show Material materials with Electrical resistivity of 1.24E-6 Ω·m
	500.0 °C	1.26E-6 Ω·m Show Material materials with Electrical resistivity of 1.26E-6 Ω·m
	600.0 °C	1.26E-6 Ω·m Show Material materials with Electrical resistivity of 1.26E-6 Ω·m
	700.0 °C	1.27E-6 Ω·m Show Material materials with Electrical resistivity of 1.27E-6 Ω·m
	800.0 °C	1.28E-6 Ω·m Show Material materials with Electrical resistivity of 1.28E-6 Ω·m
	900.0 °C	1.29E-6 Ω·m Show Material materials with Electrical resistivity of 1.29E-6 Ω·m
	1000.0 °C	1.3E-6 Ω·m Show Material materials with Electrical resistivity of 1.3E-6 Ω·m
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Chemical properties

Property	Value
Aluminium	0.2 % Show Material materials with Aluminium of 0.2 %
Carbon	0.025 % Show Material materials with Carbon of 0.025 %
Chromium	19.5 - 23.5 % Show Material materials with Chromium of 19.5 - 23.5 %
Cobalt	1 % Show Material materials with Cobalt of 1 %
Copper	1.5 - 3 % Show Material materials with Copper of 1.5 - 3 %
Iron	20.04 % Show Material materials with Iron of 20.04 %
Manganese	1 % Show Material materials with Manganese of 1 %
Molybdenum	2.5 - 3.5 % Show Material materials with Molybdenum of 2.5 - 3.5 %
Nickel	38 - 46 % Show Material materials with Nickel of 38 - 46 %
Phosphorus	0.02 % Show Material materials with Phosphorus of 0.02 %
Silicon	0.5 % Show Material materials with Silicon of 0.5 %
Sulfur	0.01 - 0.015 % Show Material materials with Sulfur of 0.01 - 0.015 %
Titanium	0.6 - 1.2 % Show Material materials with Titanium of 0.6 - 1.2 %

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