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Grade M30H Nickel vs. SAE-AISI 4042 Steel

Grade M30H nickel belongs to the nickel alloys classification, while SAE-AISI 4042 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade M30H nickel and the bottom bar is SAE-AISI 4042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 11
13
Fatigue Strength, MPa 230
360
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
73
Tensile Strength: Ultimate (UTS), MPa 770
680
Tensile Strength: Yield (Proof), MPa 470
570

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1250
1460
Melting Onset (Solidus), °C 1200
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.1
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 250
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
81
Resilience: Unit (Modulus of Resilience), kJ/m3 700
860
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 5.7
13
Thermal Shock Resistance, points 27
22

Alloy Composition

Carbon (C), % 0 to 0.3
0.4 to 0.45
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 3.5
97.9 to 98.6
Manganese (Mn), % 0 to 1.5
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 57.9 to 70.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 2.7 to 3.7
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040