Nickel-chromium alloy, INCONEL 713, cast, as cast

INCONEL 713, cast, as cast, Designation

Special Metals Corp.: “INCONEL 713C”
Condition	As cast
UNS number	N07713
US name	ASTM Grade 7V, AMS 5391, AMS 5391
EN number	2.4671

INCONEL 713, cast, as cast, Tradenames

INCONEL 713	Special Metals Corp. (USA)
LA169	Turbomeca (FRANCE)
CPW 80	Pratt and Whitney Canada (CANADA)
DMD421.22	SNECMA (FRANCE)

INCONEL 713, cast, as cast, Typical uses

High temperature applications where creep resistance is important, aircraft engines, industrial turbines, diesel turbocharger parts, press forging dies, extrusion dies, die casting dies, integral rotor castings

INCONEL 713, cast, as cast, Composition detail

Al (aluminum)	5.5	–	6.5	%
B (boron)	0.005	–	0.015	%
C (carbon)	0.08	–	0.2	%
Cr (chromium)	12	–	14	%
Fe (iron)	0	–	2.5	%
Mn (manganese)	0	–	0.25	%
Mo (molybdenum)	3.8	–	5.2	%
Nb (niobium)	1.8	–	2.8	%
Ni (nickel)	66.4	–	76.3	%
Si (silicon)	0	–	0.5	%
Ti (titanium)	0.5	–	1	%
Zr (zirconium)	0.05	–	0.15	%
Other	0	–	0.5	%

INCONEL 713, cast, as cast, Physical properties

Density

7.8

–

g/cm³

INCONEL 713, cast, as cast, Mechanical properties

Young’s modulus	200	–	210	GPa
Specific stiffness	25.2	–	26.7	MN.m/kg
Yield strength (elastic limit)	685	–	900	MPa
Tensile strength	755	–	990	MPa
Specific strength	86.7	–	114	kN.m/kg
Elongation	3	–	8	% strain
Compressive strength	685	–	900	MPa
Flexural modulus	200	–	210	GPa
Flexural strength (modulus of rupture)	685	–	900	MPa
Shear modulus	75	–	85	GPa
Bulk modulus	155	–	185	GPa
Poisson’s ratio	0.29	–	0.31
Shape factor	20
Hardness – Vickers	300	–	420	HV
Elastic stored energy (springs)	1160	–	1950	kJ/m³
Fatigue strength at 10^7 cycles	200	–	360	MPa
Fatigue strength model (stress range) _{Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles}	185	–	389	MPa

INCONEL 713, cast, as cast, Impact & fracture properties

Fracture toughness	34.2	–	38	MPa.m^0.5
Toughness (G)	5.7	–	7.04	kJ/m²

INCONEL 713, cast, as cast, Thermal properties

Melting point	1260	–	1290	°C
Maximum service temperature	852	–	982	°C
Minimum service temperature	-273			°C
Thermal conductivity	10	–	12	W/m.°C
Specific heat capacity	400	–	440	J/kg.°C
Thermal expansion coefficient	9.5	–	12	µstrain/°C
Thermal shock resistance	301	–	428	°C
Thermal distortion resistance	0.887	–	1.19	MW/m
Latent heat of fusion	290	–	305	kJ/kg

INCONEL 713, cast, as cast, Electrical properties

Electrical resistivity	140	–	148	µohm.cm
Electrical conductivity	1.16	–	1.23	%IACS
Galvanic potential	-0.15	–	-0.07	V

INCONEL 713, cast, as cast, Magnetic properties

Magnetic type

Non-magnetic

INCONEL 713, cast, as cast, Optical, aesthetic and acoustic properties

Transparency	Opaque
Acoustic velocity	5020	–	5160	m/s
Mechanical loss coefficient (tan delta)	2e-4	–	4e-4

INCONEL 713, cast, as cast, Processing properties

Metal casting	Acceptable
Metal cold forming	Unsuitable
Metal hot forming	Unsuitable
Metal press forming	Unsuitable
Metal deep drawing	Unsuitable
Machining speed	3.66 m/min
Weldability _{Notes: Preheating may be required, post weld heat treatment is required}	Poor

INCONEL 713, cast, as cast, Durability

Water (fresh)	Excellent
Water (salt)	Excellent
Weak acids	Excellent
Strong acids	Acceptable
Weak alkalis	Excellent
Strong alkalis	Excellent
Organic solvents	Excellent
Oxidation at 500C	Excellent
UV radiation (sunlight)	Excellent
Galling resistance (adhesive wear) _{Notes: Cemented carbide tools are required for machining; the alumina surface oxide protects against galling at high temperatures. Bronze or zinc alloy dies should be used to minimize galling.}	Limited use
Flammability	Non-flammable

INCONEL 713, cast, as cast, Corrosion resistance of metals

Stress corrosion cracking
_{Note: Rated in chloride; Other susceptible environments: Hydroxide}

Not susceptible

INCONEL 713, cast, as cast, Notes

Warning

All nickel compounds should be regarded as toxic. Some can cause cancer and/or fetal abnormalities.

Other notes

INCONEL 713C maintains its properties very well at high temperatures. A low carbon version of this alloy is available, known as “INCONEL 713LC”, which has increased castability.

As of September 1999 , INCONEL, INCOLOY, MONEL, NIMONIC, INCO-WELD, NILO, BRIGHTRAY, CORRONEL and UDIMET have become registered trademarks of Special Metals Corporation

INCONEL 713, cast, as cast, Standards with similar compositions

Tradenames: HAYNES ALLOY NO. 713C

VIRGO 87B