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SAE-AISI H42 Steel vs. Grade M30C Nickel

SAE-AISI H42 steel belongs to the iron alloys classification, while grade M30C nickel belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
61
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
510

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1620
1290
Melting Onset (Solidus), °C 1570
1240
Specific Heat Capacity, J/kg-K 440
430
Thermal Conductivity, W/m-K 24
22
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
60
Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 8.8
9.5
Embodied Energy, MJ/kg 130
140
Embodied Water, L/kg 98
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 23 to 65
16
Strength to Weight: Bending, points 21 to 42
16
Thermal Diffusivity, mm2/s 6.5
5.7
Thermal Shock Resistance, points 20 to 57
18

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.3
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
26 to 33
Iron (Fe), % 79.3 to 83.8
0 to 3.5
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0