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ACI-ASTM CA6NM Steel vs. Grade M30C Nickel

ACI-ASTM CA6NM steel belongs to the iron alloys classification, while grade M30C 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 CA6NM steel and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 17
29
Fatigue Strength, MPa 380
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
61
Tensile Strength: Ultimate (UTS), MPa 850
510
Tensile Strength: Yield (Proof), MPa 620
250

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Mechanical, °C 770
900
Melting Completion (Liquidus), °C 1450
1290
Melting Onset (Solidus), °C 1400
1240
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 25
22
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.5
9.5
Embodied Energy, MJ/kg 34
140
Embodied Water, L/kg 110
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
200
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 30
16
Strength to Weight: Bending, points 26
16
Thermal Diffusivity, mm2/s 6.7
5.7
Thermal Shock Resistance, points 31
18

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.3
Chromium (Cr), % 11.5 to 14
0
Copper (Cu), % 0
26 to 33
Iron (Fe), % 78.4 to 84.6
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030