Nickel Alloy 718 (N07718, NA51)

Nickel Alloys

Material conditionsolution annealed (AT)

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density8.3g/cm³

Elastic Modulus190GPa

Tensile Strength1200MPa

Yield Strength750MPa

Brinell HardnessUnknown

Maximum Service Temperature980°C

Weight Calculator

Chemical Composition

C

0 to 0.080%

CR

17 to 21%

NI

50 to 55%

MO

2.8 to 3.3%

MN

0 to 0.35%

SI

0 to 0.35%

P

0 to 0.015%

S

0 to 0.015%

CU

0 to 0.3%

NB

4.8 to 5.5%

TI

0.65 to 1.2%

AL

0.2 to 0.8%

CO

0 to 1.0%

B

0 to 0.0060%

FE

11.1 to 24.6%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

34 %

Fatigue Strength

540 MPa

Fracture Toughness

220 MPa-m 1/2

Poisson's Ratio

0.29

Shear Modulus

75 GPa

Shear Strength

800 MPa

Tensile Strength: Ultimate (UTS)

1200 MPa

Tensile Strength: Yield (Proof)

750 MPa

Hardness

Rockwell C Hardness

40

Physical

Density

8.3 g/cm 3

Thermal

Curie Temperature

-110 °C

Latent Heat of Fusion

310 J/g

Maximum Temperature: Mechanical

980 °C

Melting Completion (Liquidus)

1340 °C

Melting Onset (Solidus)

1260 °C

Specific Heat Capacity

450 J/kg-K

Thermal Conductivity

11 W/m-K

Thermal Diffusivity

3.0 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

35 points

Electrical

Electrical Conductivity: Equal Volume

1.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

1.5 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

350 MJ/m 3

Resilience: Unit (Modulus of Resilience)

1440 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

23 points

Strength to Weight: Axial

40 points

Strength to Weight: Bending

30 points

Environmental

Base Metal Price

75 % relative

Embodied Carbon

13 kg CO 2 /kg material

Embodied Energy

190 MJ/kg

Embodied Energy

190 MJ/kg 80 x 10 3 BTU/lb

Embodied Water

250 L/kg

Embodied Water

250 L/kg 30 gal/lb