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

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	20.0 °C	8.9 g/cm³ Show Material materials with Dichte of 8.9 g/cm³

Mechanisch

Property	Temperature	Value
Dehnung	20.0 °C	40 % Show Material materials with Dehnung of 40 %
Elastizitätsmodul	20.0 °C	213 GPa Show Material materials with Elastizitätsmodul of 213 GPa
	100.0 °C	209 GPa Show Material materials with Elastizitätsmodul of 209 GPa
	200.0 °C	204 GPa Show Material materials with Elastizitätsmodul of 204 GPa
	300.0 °C	198 GPa Show Material materials with Elastizitätsmodul of 198 GPa
	400.0 °C	193 GPa Show Material materials with Elastizitätsmodul of 193 GPa
	500.0 °C	188 GPa Show Material materials with Elastizitätsmodul of 188 GPa
	600.0 °C	183 GPa Show Material materials with Elastizitätsmodul of 183 GPa

Härte, Brinell	20.0 °C	240 [-] Show Material materials with Härte, Brinell of 240 [-]
Streckgrenze Rp 0,2	20.0 °C	320 MPa Show Material materials with Streckgrenze Rp 0,2 of 320 MPa
Streckgrenze Rp 1,0	20.0 °C	360 MPa Show Material materials with Streckgrenze Rp 1,0 of 360 MPa
Zugfestigkeit	20.0 °C	720 MPa Show Material materials with Zugfestigkeit of 720 MPa

Thermisch

Property	Temperature	Value
Koeffizient der thermischen Ausdehnung	100.0 °C	1.06E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.06E-5 1/K
	200.0 °C	1.11E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.11E-5 1/K
	300.0 °C	1.15E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.15E-5 1/K
	400.0 °C	1.19E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.19E-5 1/K
	500.0 °C	1.21E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.21E-5 1/K
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Max. Betriebstemperatur, lang		-196 - 450 °C Show Material materials with Max. Betriebstemperatur, lang of -196 - 450 °C
Spezifische Wärmekapazität	20.0 °C	394 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 394 J/(kg·K)
	100.0 °C	410 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 410 J/(kg·K)
	200.0 °C	421 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 421 J/(kg·K)
	300.0 °C	429 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 429 J/(kg·K)
	400.0 °C	436 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 436 J/(kg·K)
	500.0 °C	450 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 450 J/(kg·K)
	600.0 °C	464 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 464 J/(kg·K)
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Wärmeleitfähigkeit	20.0 °C	13.1 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 13.1 W/(m·K)
	100.0 °C	14.4 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 14.4 W/(m·K)
	200.0 °C	15.9 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 15.9 W/(m·K)
	300.0 °C	17.5 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 17.5 W/(m·K)
	400.0 °C	19 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 19 W/(m·K)
	500.0 °C	20.5 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 20.5 W/(m·K)
	600.0 °C	22 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 22 W/(m·K)
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Elektrisch

Property	Temperature	Value
spezifischer Widerstand	20.0 °C	1.3E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.3E-6 Ω·m
	100.0 °C	1.31E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.31E-6 Ω·m
	200.0 °C	1.32E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.32E-6 Ω·m
	300.0 °C	1.33E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.33E-6 Ω·m
	400.0 °C	1.34E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.34E-6 Ω·m
	500.0 °C	1.35E-6 Ω·m Show Material materials with spezifischer Widerstand of 1.35E-6 Ω·m
	600.0 °C	1.37E-6 Ω·m Show Material materials with spezifischer Widerstand 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 %
Chrom	6 - 10 % Show Material materials with Chrom of 6 - 10 %
Eisen	5 - 8 % Show Material materials with Eisen of 5 - 8 %
Kobalt	1 % Show Material materials with Kobalt of 1 %
Kohlenstoff	0.01 % Show Material materials with Kohlenstoff of 0.01 %
Kupfer	0.5 % Show Material materials with Kupfer of 0.5 %
Mangan	1 % Show Material materials with Mangan of 1 %
Molybdän	21 - 25 % Show Material materials with Molybdän of 21 - 25 %
Nickel	53.9 % Show Material materials with Nickel of 53.9 %
Phosphor	0.02 % Show Material materials with Phosphor of 0.02 %
Schwefel	0.015 % Show Material materials with Schwefel of 0.015 %
Silizium	0.1 % Show Material materials with Silizium of 0.1 %