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ACI-ASTM CA15 Steel vs. Grade CW6MC Nickel

ACI-ASTM CA15 steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15 steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
28
Fatigue Strength, MPa 370
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 700
540
Tensile Strength: Yield (Proof), MPa 570
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 750
980
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 25
11
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
80
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.0
14
Embodied Energy, MJ/kg 28
200
Embodied Water, L/kg 100
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 820
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 6.7
2.8
Thermal Shock Resistance, points 26
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.060
Chromium (Cr), % 11.5 to 14
20 to 23
Iron (Fe), % 81.8 to 88.5
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
8.0 to 10
Nickel (Ni), % 0 to 1.0
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030