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SAE-AISI 1118 Steel vs. Grade CW6M Nickel

SAE-AISI 1118 steel belongs to the iron alloys classification, while grade CW6M 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 1118 steel and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 13
29
Fatigue Strength, MPa 260
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
84
Tensile Strength: Ultimate (UTS), MPa 490
560
Tensile Strength: Yield (Proof), MPa 410
310

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
970
Melting Completion (Liquidus), °C 1460
1530
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
65
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.4
13
Embodied Energy, MJ/kg 19
170
Embodied Water, L/kg 47
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
140
Resilience: Unit (Modulus of Resilience), kJ/m3 450
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 18
17
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0.14 to 0.2
0 to 0.070
Chromium (Cr), % 0
17 to 20
Iron (Fe), % 98 to 98.5
0 to 3.0
Manganese (Mn), % 1.3 to 1.6
0 to 1.0
Molybdenum (Mo), % 0
17 to 20
Nickel (Ni), % 0
54.9 to 66
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030