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S44725 Stainless Steel vs. Grade M30C Nickel

S44725 stainless steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S44725 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, % 22
29
Fatigue Strength, MPa 210
170
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 81
61
Tensile Strength: Ultimate (UTS), MPa 500
510
Tensile Strength: Yield (Proof), MPa 310
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1450
1290
Melting Onset (Solidus), °C 1410
1240
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
60
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 3.1
9.5
Embodied Energy, MJ/kg 44
140
Embodied Water, L/kg 170
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
200
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 18
16
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 4.6
5.7
Thermal Shock Resistance, points 16
18

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.3
Chromium (Cr), % 25 to 28.5
0
Copper (Cu), % 0
26 to 33
Iron (Fe), % 67.6 to 73.5
0 to 3.5
Manganese (Mn), % 0 to 0.4
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 0 to 0.3
56.6 to 72
Niobium (Nb), % 0 to 0.26
1.0 to 3.0
Nitrogen (N), % 0 to 0.018
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.040
1.0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.26
0