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EN 1.7321 Steel vs. Grade M30C Nickel

EN 1.7321 steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 24 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 EN 1.7321 steel and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
61
Tensile Strength: Ultimate (UTS), MPa 490 to 1460
510

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
900
Melting Completion (Liquidus), °C 1460
1290
Melting Onset (Solidus), °C 1420
1240
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 45
22
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
60
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.5
9.5
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 50
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17 to 52
16
Strength to Weight: Bending, points 18 to 36
16
Thermal Diffusivity, mm2/s 12
5.7
Thermal Shock Resistance, points 14 to 43
18

Alloy Composition

Carbon (C), % 0.17 to 0.23
0 to 0.3
Chromium (Cr), % 0.3 to 0.6
0
Copper (Cu), % 0 to 0.25
26 to 33
Iron (Fe), % 97.1 to 98.4
0 to 3.5
Manganese (Mn), % 0.7 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.5
0
Nickel (Ni), % 0
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
1.0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.030