SAE-AISI A4 Steel vs. Nickel 693

SAE-AISI A4 steel belongs to the iron alloys classification, while nickel 693 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is nickel 693.

SAE-AISI A4 (T30104) Air-Hardening Steel Nickel Alloy 693 (N06693)

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.28

Shear Modulus, GPa		73
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		710 to 2050
Tensile Strength: Ultimate (UTS), MPa		660

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		330

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1350

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1310

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

Thermal Conductivity, W/m-K		40
Thermal Conductivity, W/m-K		9.1

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

Otherwise Unclassified Properties

Base Metal Price, % relative		3.9
Base Metal Price, % relative		60

Density, g/cm³		7.8
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		1.8
Embodied Carbon, kg CO₂/kg material		9.9

Embodied Energy, MJ/kg		24
Embodied Energy, MJ/kg		140

Embodied Water, L/kg		59
Embodied Water, L/kg		320

Common Calculations

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

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		25 to 73
Strength to Weight: Axial, points		23

Strength to Weight: Bending, points		23 to 46
Strength to Weight: Bending, points		21

Thermal Diffusivity, mm²/s		11
Thermal Diffusivity, mm²/s		2.3

Thermal Shock Resistance, points		23 to 67
Thermal Shock Resistance, points		19

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		2.5 to 4.0

Carbon (C), %		1.0 to 1.1
Carbon (C), %		0 to 0.15

Chromium (Cr), %		0.9 to 2.2
Chromium (Cr), %		27 to 31

Copper (Cu), %		0 to 0.25
Copper (Cu), %		0 to 0.5

Iron (Fe), %		92 to 95.5
Iron (Fe), %		2.5 to 6.0

Manganese (Mn), %		1.8 to 2.2
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0.9 to 1.4
Molybdenum (Mo), %		0

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		53.3 to 67.5

Niobium (Nb), %		0
Niobium (Nb), %		0.5 to 2.5

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

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0 to 0.5

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.010

Titanium (Ti), %		0
Titanium (Ti), %		0 to 1.0