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S44800 Stainless Steel vs. Grade M30H Nickel

S44800 stainless steel belongs to the iron alloys classification, while grade M30H nickel belongs to the nickel alloys. There are 29 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 S44800 stainless steel and the bottom bar is grade M30H nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
160
Elongation at Break, % 23
11
Fatigue Strength, MPa 300
230
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 82
61
Tensile Strength: Ultimate (UTS), MPa 590
770
Tensile Strength: Yield (Proof), MPa 450
470

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1460
1250
Melting Onset (Solidus), °C 1410
1200
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
50
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 3.8
7.7
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 190
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
75
Resilience: Unit (Modulus of Resilience), kJ/m3 480
700
Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.6
5.7
Thermal Shock Resistance, points 19
27

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.3
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.15
27 to 33
Iron (Fe), % 62.6 to 66.5
0 to 3.5
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 3.5 to 4.2
0
Nickel (Ni), % 2.0 to 2.5
57.9 to 70.3
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.2
2.7 to 3.7
Sulfur (S), % 0 to 0.020
0 to 0.030