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SAE-AISI 5155 Steel vs. Grade CW2M Nickel

SAE-AISI 5155 steel belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5155 steel and the bottom bar is grade CW2M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
23
Fatigue Strength, MPa 260
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
83
Tensile Strength: Ultimate (UTS), MPa 620
560
Tensile Strength: Yield (Proof), MPa 380
310

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1450
1520
Melting Onset (Solidus), °C 1410
1460
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
70
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.4
12
Embodied Energy, MJ/kg 19
170
Embodied Water, L/kg 49
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 20
16

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.020
Chromium (Cr), % 0.7 to 0.9
15 to 17.5
Iron (Fe), % 97.2 to 97.9
0 to 2.0
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
15 to 17.5
Nickel (Ni), % 0
60.1 to 70
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0 to 1.0