MakeItFrom.com
Menu (ESC)

ACI-ASTM CN7M Steel vs. Grade M30H Nickel

ACI-ASTM CN7M steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M 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, % 44
11
Fatigue Strength, MPa 190
230
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
61
Tensile Strength: Ultimate (UTS), MPa 480
770
Tensile Strength: Yield (Proof), MPa 200
470

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1410
1250
Melting Onset (Solidus), °C 1450
1200
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 21
22
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
50
Density, g/cm3 8.1
8.6
Embodied Carbon, kg CO2/kg material 5.6
7.7
Embodied Energy, MJ/kg 78
110
Embodied Water, L/kg 210
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
75
Resilience: Unit (Modulus of Resilience), kJ/m3 110
700
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 5.6
5.7
Thermal Shock Resistance, points 12
27

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.3
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
27 to 33
Iron (Fe), % 37.4 to 48.5
0 to 3.5
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
57.9 to 70.3
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