DIN 17744 Grade NiMo23Cr8Fe solution annealed (+AT)

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Description

The material NiMo23Cr8Fe with the material number 2.4710 is used in the form of strips, sheets, tubes, bars, wires and forgings for corrosion-resistant construction components. The material is a nickel-molybdenum-chromium-iron-solid solution alloy with outstanding corrosion-resistance in very acid mediums with a low content of oxidation agents. Apart from its resistance to general and intercrystalline corrosion, the resistance to crevice corrosion, which can occur under deposits and incrustations in construction-caused crevices of flue-gas wet-desulphurization plants, has to be especially pointed out. The material is marked by excellent resistance to condensed sulphuric acid, good durability in reducing mediums like hydrochloric acid, good hot and cold formability as well as good suitability for welding and an applicability at temperatures of - 196 °C to 450 °C. NiMo23Cr8Fe is applied in the chemical process industry as well as in the energy and environmental technology, e.g. heat displacement systems in flue-gas desulphurization plants, for flue-gas washing devices for the thermic refuse disposal, for plants for the recycling of waste-sulphuric acid (30 to 90 per cent in reducing conditions).

Related Standards

DIN 17744

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	8.9 g/cm³ Show Material materials with Density of 8.9 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	213 GPa Show Material materials with Elastic modulus of 213 GPa
	100.0 °C	209 GPa Show Material materials with Elastic modulus of 209 GPa
	200.0 °C	204 GPa Show Material materials with Elastic modulus of 204 GPa
	300.0 °C	198 GPa Show Material materials with Elastic modulus of 198 GPa
	400.0 °C	193 GPa Show Material materials with Elastic modulus of 193 GPa
	500.0 °C	188 GPa Show Material materials with Elastic modulus of 188 GPa
	600.0 °C	183 GPa Show Material materials with Elastic modulus of 183 GPa

Elongation	20.0 °C	40 % Show Material materials with Elongation of 40 %
Hardness, Brinell	20.0 °C	240 [-] Show Material materials with Hardness, Brinell of 240 [-]
Tensile strength	20.0 °C	720 MPa Show Material materials with Tensile strength of 720 MPa
Yield strength Rp0.2	20.0 °C	320 MPa Show Material materials with Yield strength Rp0.2 of 320 MPa
Yield strength Rp1.0	20.0 °C	360 MPa Show Material materials with Yield strength Rp1.0 of 360 MPa

Thermal

Property	Temperature	Value
Coefficient of thermal expansion	100.0 °C	1.06E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.06E-5 1/K
	200.0 °C	1.11E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.11E-5 1/K
	300.0 °C	1.15E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.15E-5 1/K
	400.0 °C	1.19E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.19E-5 1/K
	500.0 °C	1.21E-5 1/K Show Material materials with Coefficient of thermal expansion of 1.21E-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	394 J/(kg·K) Show Material materials with Specific heat capacity of 394 J/(kg·K)
	100.0 °C	410 J/(kg·K) Show Material materials with Specific heat capacity of 410 J/(kg·K)
	200.0 °C	421 J/(kg·K) Show Material materials with Specific heat capacity of 421 J/(kg·K)
	300.0 °C	429 J/(kg·K) Show Material materials with Specific heat capacity of 429 J/(kg·K)
	400.0 °C	436 J/(kg·K) Show Material materials with Specific heat capacity of 436 J/(kg·K)
	500.0 °C	450 J/(kg·K) Show Material materials with Specific heat capacity of 450 J/(kg·K)
	600.0 °C	464 J/(kg·K) Show Material materials with Specific heat capacity of 464 J/(kg·K)
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Thermal conductivity	20.0 °C	13.1 W/(m·K) Show Material materials with Thermal conductivity of 13.1 W/(m·K)
	100.0 °C	14.4 W/(m·K) Show Material materials with Thermal conductivity of 14.4 W/(m·K)
	200.0 °C	15.9 W/(m·K) Show Material materials with Thermal conductivity of 15.9 W/(m·K)
	300.0 °C	17.5 W/(m·K) Show Material materials with Thermal conductivity of 17.5 W/(m·K)
	400.0 °C	19 W/(m·K) Show Material materials with Thermal conductivity of 19 W/(m·K)
	500.0 °C	20.5 W/(m·K) Show Material materials with Thermal conductivity of 20.5 W/(m·K)
	600.0 °C	22 W/(m·K) Show Material materials with Thermal conductivity of 22 W/(m·K)
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Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.3E-6 Ω·m Show Material materials with Electrical resistivity of 1.3E-6 Ω·m
	100.0 °C	1.31E-6 Ω·m Show Material materials with Electrical resistivity of 1.31E-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	1.34E-6 Ω·m Show Material materials with Electrical resistivity of 1.34E-6 Ω·m
	500.0 °C	1.35E-6 Ω·m Show Material materials with Electrical resistivity of 1.35E-6 Ω·m
	600.0 °C	1.37E-6 Ω·m Show Material materials with Electrical resistivity of 1.37E-6 Ω·m
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Chemical properties

Property	Value
Aluminium	0.5 % Show Material materials with Aluminium of 0.5 %
Carbon	0.01 % Show Material materials with Carbon of 0.01 %
Chromium	6 - 10 % Show Material materials with Chromium of 6 - 10 %
Cobalt	1 % Show Material materials with Cobalt of 1 %
Copper	0.5 % Show Material materials with Copper of 0.5 %
Iron	5 - 8 % Show Material materials with Iron of 5 - 8 %
Manganese	1 % Show Material materials with Manganese of 1 %
Molybdenum	21 - 25 % Show Material materials with Molybdenum of 21 - 25 %
Nickel	53.9 % Show Material materials with Nickel of 53.9 %
Phosphorus	0.02 % Show Material materials with Phosphorus of 0.02 %
Silicon	0.1 % Show Material materials with Silicon of 0.1 %
Sulfur	0.015 % Show Material materials with Sulfur of 0.015 %