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EN 1.4458 Stainless Steel vs. Grade M30C Nickel

EN 1.4458 stainless steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. They have a modest 32% 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 stainless 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, % 34
29
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
61
Tensile Strength: Ultimate (UTS), MPa 510
510
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1420
1290
Melting Onset (Solidus), °C 1370
1240
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 16
22
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
60
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 5.4
9.5
Embodied Energy, MJ/kg 75
140
Embodied Water, L/kg 200
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 89
200
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
16
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 4.2
5.7
Thermal Shock Resistance, points 12
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0 to 2.0
26 to 33
Iron (Fe), % 40.2 to 53
0 to 3.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.030