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SAE-AISI H42 Steel vs. Nickel 686

SAE-AISI H42 steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. There are 21 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 SAE-AISI H42 steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
780

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1620
1380
Melting Onset (Solidus), °C 1570
1340
Specific Heat Capacity, J/kg-K 440
420
Thermal Conductivity, W/m-K 24
9.8
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.8
12
Embodied Energy, MJ/kg 130
170
Embodied Water, L/kg 98
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 23 to 65
24
Strength to Weight: Bending, points 21 to 42
21
Thermal Diffusivity, mm2/s 6.5
2.6
Thermal Shock Resistance, points 20 to 57
21

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.010
Chromium (Cr), % 3.8 to 4.5
19 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
0 to 5.0
Manganese (Mn), % 0.15 to 0.4
0 to 0.75
Molybdenum (Mo), % 4.5 to 5.5
15 to 17
Nickel (Ni), % 0 to 0.3
49.5 to 63
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 5.5 to 6.8
3.0 to 4.4
Vanadium (V), % 1.8 to 2.2
0