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S31727 Stainless Steel vs. Grade M30C Nickel

S31727 stainless steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 S31727 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, % 40
29
Fatigue Strength, MPa 240
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
61
Tensile Strength: Ultimate (UTS), MPa 630
510
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 1010
900
Melting Completion (Liquidus), °C 1440
1290
Melting Onset (Solidus), °C 1390
1240
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
60
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 4.7
9.5
Embodied Energy, MJ/kg 64
140
Embodied Water, L/kg 180
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
200
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 20
16
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
26 to 33
Iron (Fe), % 53.7 to 61.3
0 to 3.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030