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EN 1.7117 Steel vs. Grade N7M Nickel

EN 1.7117 steel belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.7117 steel and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
85
Tensile Strength: Ultimate (UTS), MPa 660 to 1930
590

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 420
900
Melting Completion (Liquidus), °C 1440
1650
Melting Onset (Solidus), °C 1400
1590
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 13
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
75
Density, g/cm3 7.7
9.3
Embodied Carbon, kg CO2/kg material 1.5
16
Embodied Energy, MJ/kg 21
200
Embodied Water, L/kg 51
270

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 24 to 69
18
Strength to Weight: Bending, points 22 to 44
17
Thermal Shock Resistance, points 20 to 58
19

Alloy Composition

Carbon (C), % 0.49 to 0.56
0 to 0.070
Chromium (Cr), % 0.7 to 1.0
0 to 1.0
Iron (Fe), % 95.2 to 96.4
0 to 3.0
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
30 to 33
Nickel (Ni), % 0.5 to 0.7
60.9 to 70
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 1.2 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030