SAE-AISI S7 Steel vs. Grade CW2M Nickel

SAE-AISI S7 steel belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S7 steel and the bottom bar is grade CW2M nickel.

SAE-AISI S7 (T41907) Shock-Resisting Steel Grade CW2M (J26455) Cast Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		74
Shear Modulus, GPa		83

Tensile Strength: Ultimate (UTS), MPa		670 to 2030
Tensile Strength: Ultimate (UTS), MPa		560

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		330

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1520

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		1460

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		430

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

Otherwise Unclassified Properties

Base Metal Price, % relative		5.0
Base Metal Price, % relative		70

Density, g/cm³		7.8
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		2.3
Embodied Carbon, kg CO₂/kg material		12

Embodied Energy, MJ/kg		31
Embodied Energy, MJ/kg		170

Embodied Water, L/kg		65
Embodied Water, L/kg		290

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		13

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

Strength to Weight: Axial, points		24 to 72
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		22 to 46
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		22 to 66
Thermal Shock Resistance, points		16

Alloy Composition

Carbon (C), %		0.45 to 0.55
Carbon (C), %		0 to 0.020

Chromium (Cr), %		3.0 to 3.5
Chromium (Cr), %		15 to 17.5

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

Iron (Fe), %		91.6 to 94.9
Iron (Fe), %		0 to 2.0

Manganese (Mn), %		0.2 to 0.9
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		1.3 to 1.8
Molybdenum (Mo), %		15 to 17.5

Nickel (Ni), %		0
Nickel (Ni), %		60.1 to 70

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

Silicon (Si), %		0.2 to 1.0
Silicon (Si), %		0 to 0.8

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

Tungsten (W), %		0
Tungsten (W), %		0 to 1.0

Vanadium (V), %		0 to 0.3
Vanadium (V), %		0