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SAE-AISI H21 Steel vs. N10675 Nickel

SAE-AISI H21 steel belongs to the iron alloys classification, while N10675 nickel belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is N10675 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 76
85
Tensile Strength: Ultimate (UTS), MPa 720 to 1790
860

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Melting Completion (Liquidus), °C 1630
1420
Melting Onset (Solidus), °C 1580
1370
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 27
11
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
80
Density, g/cm3 8.5
9.3
Embodied Carbon, kg CO2/kg material 4.5
16
Embodied Energy, MJ/kg 68
210
Embodied Water, L/kg 72
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 23 to 58
26
Strength to Weight: Bending, points 21 to 38
22
Thermal Diffusivity, mm2/s 7.1
3.1
Thermal Shock Resistance, points 24 to 59
26

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.28 to 0.36
0 to 0.010
Chromium (Cr), % 3.0 to 3.8
1.0 to 3.0
Cobalt (Co), % 0
0 to 3.0
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 87.6 to 93.8
1.0 to 3.0
Manganese (Mn), % 0.15 to 0.4
0 to 3.0
Molybdenum (Mo), % 0
27 to 32
Nickel (Ni), % 0 to 0.3
51.3 to 71
Niobium (Nb), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Tantalum (Ta), % 0
0 to 0.2
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 8.5 to 10
0 to 3.0
Vanadium (V), % 0.3 to 0.6
0 to 0.2
Zinc (Zn), % 0
0 to 0.1