EN 10095 NiCr15Fe Soft Annealed (+A) – High-Temperature, Corrosion-Resistant Alloy

NiCr15Fe, contained in VdTÜV-material specification 305 : 1984-03 and supplement 305 : 1990-06 is an unhardenable alloy for application in wetchemical sector and at high temperatures. Material`s versatility causes a wide application range from low temperature range up to approx. 1150°C (highest application temperatures in air). Usable on oxidizing conditions due to the Cr-content, resistance to reducing conditions due to the high Ni-content. The alloy shows excellent properties also at high temperatures, in ammoniacal gases as well as in nitriding or carburizing athmosphere. It represents the standard material in furnace construction due to its high-temperature strength and corrosion resistance at increased temperatures as well as its favorable processability. NiCr15Fe shows favorable resistance to stress corrosion in the presence of chloride ions. The material is reliable in chemical engineering, application in caustic soda, formic acid, acetic acid and fatty acids. NiCr15Fe is suitable at temperatures of up to 550°C in dry gases, such as hydrogen chloride or chloric gas. Use in nuclear power engineering due to favorable resistance in high-purity water. Application for ammonia cracking facilities, gas carburization plants, nitration furnaces, production facilities for chlorinated and fluorinated hydrocarbon, ethylene dichloride cracking tubes, production lines for alkaline products, reactors and heat-exchanger in vinyl chloride production lines, facility components for production of sodium sulfide, steam generator tubes in nuclear power engineering. Processing properties: formability: good weldability: good machinability: good

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Properties

General

Property	Temperature	Value
Density	20.0 °C	8.4 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	214 GPa
	100.0 °C	209 GPa
	200.0 °C	205 GPa
	300.0 °C	200 GPa
	400.0 °C	194 GPa
	500.0 °C	187 GPa
	600.0 °C	180 GPa
	700.0 °C	172 GPa
	800.0 °C	163 GPa
	900.0 °C	153 GPa
	1000.0 °C	143 GPa
Elongation	20.0 °C	30 %
Elongation A80	20.0 °C	30 %
Hardness, Brinell	20.0 °C	200 [-]
Tensile strength	20.0 °C	500 - 850 MPa
Yield strength Rp0.2	20.0 °C	240 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.37E-5 1/K
	200.0 °C	1.39E-5 - 1.41E-5 1/K
	300.0 °C	1.44E-5 1/K
	400.0 °C	1.45E-5 - 1.48E-5 1/K
	500.0 °C	1.51E-5 1/K
	600.0 °C	1.53E-5 - 1.54E-5 1/K
	700.0 °C	1.58E-5 1/K
	800.0 °C	1.61E-5 - 1.62E-5 1/K
	900.0 °C	1.64E-5 1/K
	1000.0 °C	1.68E-5 - 1.69E-5 1/K
Max service temperature, long		0 - 1150 °C
Melting point		1200 - 1480 °C	Typical for Nickel Chromium Iron Alloy
Specific heat capacity	20.0 °C	455 - 460 J/(kg·K)
	100.0 °C	475 J/(kg·K)
	200.0 °C	495 J/(kg·K)
	300.0 °C	508 J/(kg·K)
	400.0 °C	525 J/(kg·K)
	500.0 °C	550 J/(kg·K)
	600.0 °C	572 J/(kg·K)
	700.0 °C	602 J/(kg·K)
	800.0 °C	620 J/(kg·K)
	900.0 °C	630 J/(kg·K)
	1000.0 °C	635 J/(kg·K)
Thermal conductivity	20.0 °C	14.8 - 15 W/(m·K)
	100.0 °C	15.8 W/(m·K)
	200.0 °C	17 W/(m·K)
	300.0 °C	18.4 W/(m·K)
	400.0 °C	20 W/(m·K)
	500.0 °C	22 W/(m·K)
	600.0 °C	24 W/(m·K)
	700.0 °C	25.7 W/(m·K)
	800.0 °C	27.5 W/(m·K)
	900.0 °C	29.4 W/(m·K)
	1000.0 °C	31.2 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	1.03E-6 Ω·m
	100.0 °C	1.04E-6 Ω·m
	200.0 °C	1.06E-6 Ω·m
	300.0 °C	1.07E-6 Ω·m
	400.0 °C	1.08E-6 Ω·m
	500.0 °C	1.11E-6 Ω·m
	600.0 °C	1.12E-6 Ω·m
	700.0 °C	1.12E-6 Ω·m
	800.0 °C	1.12E-6 Ω·m
	900.0 °C	1.13E-6 Ω·m
	1000.0 °C	1.14E-6 Ω·m

Chemical properties

Property	Value
Aluminium	0.3 %
Carbon	0.05 - 0.1 %
Chromium	14 - 17 %
Copper	0.5 %
Iron	6 - 10 %
Manganese	1 %
Nickel	72 %
Phosphorus	0.02 %
Silicon	0.5 %
Sulfur	0.015 %
Titanium	0.3 %