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ACI-ASTM CE8MN Steel vs. Grade M30H Nickel

ACI-ASTM CE8MN steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE8MN steel and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 29
11
Fatigue Strength, MPa 370
230
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
61
Tensile Strength: Ultimate (UTS), MPa 750
770
Tensile Strength: Yield (Proof), MPa 500
470

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1440
1250
Melting Onset (Solidus), °C 1400
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 16
22
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 21
50
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 4.2
7.7
Embodied Energy, MJ/kg 58
110
Embodied Water, L/kg 180
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
75
Resilience: Unit (Modulus of Resilience), kJ/m3 620
700
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.2
5.7
Thermal Shock Resistance, points 21
27

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.3
Chromium (Cr), % 22.5 to 25.5
0
Copper (Cu), % 0
27 to 33
Iron (Fe), % 56 to 66.4
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
57.9 to 70.3
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
2.7 to 3.7
Sulfur (S), % 0 to 0.040
0 to 0.030