Nickel 684 vs. SAE-AISI S6 Steel

Nickel 684 belongs to the nickel alloys classification, while SAE-AISI S6 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is SAE-AISI S6 steel.

Nickel Alloy 684 (2.4983, N07500)SAE-AISI S6 (T41906) Shock-Resisting Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		76
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		1190
Tensile Strength: Ultimate (UTS), MPa		670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1370
Melting Completion (Liquidus), °C		1430

Melting Onset (Solidus), °C		1320
Melting Onset (Solidus), °C		1390

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		75
Base Metal Price, % relative		3.2

Density, g/cm³		8.3
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		10
Embodied Carbon, kg CO₂/kg material		2.3

Embodied Energy, MJ/kg		140
Embodied Energy, MJ/kg		33

Embodied Water, L/kg		360
Embodied Water, L/kg		56

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		40
Strength to Weight: Axial, points		24 to 70

Strength to Weight: Bending, points		30
Strength to Weight: Bending, points		22 to 45

Thermal Shock Resistance, points		34
Thermal Shock Resistance, points		22 to 64

Alloy Composition

Aluminum (Al), %		2.5 to 3.3
Aluminum (Al), %		0

Boron (B), %		0.0030 to 0.010
Boron (B), %		0

Carbon (C), %		0 to 0.15
Carbon (C), %		0.4 to 0.5

Chromium (Cr), %		15 to 20
Chromium (Cr), %		1.2 to 1.5

Cobalt (Co), %		13 to 20
Cobalt (Co), %		0

Copper (Cu), %		0 to 0.15
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0 to 4.0
Iron (Fe), %		92.8 to 94.7

Manganese (Mn), %		0 to 0.75
Manganese (Mn), %		1.2 to 1.5

Molybdenum (Mo), %		3.0 to 5.0
Molybdenum (Mo), %		0.3 to 0.5

Nickel (Ni), %		42.7 to 64
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.015
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.75
Silicon (Si), %		2.0 to 2.5

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0 to 0.030

Titanium (Ti), %		2.5 to 3.3
Titanium (Ti), %		0

Vanadium (V), %		0
Vanadium (V), %		0.2 to 0.4