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SAE-AISI 1021 Steel vs. N07750 Nickel

SAE-AISI 1021 steel belongs to the iron alloys classification, while N07750 nickel belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1021 steel and the bottom bar is N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 27
25
Fatigue Strength, MPa 190 to 300
520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 320
770
Tensile Strength: Ultimate (UTS), MPa 480 to 530
1200
Tensile Strength: Yield (Proof), MPa 260 to 450
820

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 52
13
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
60
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.4
10
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
1770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17 to 19
40
Strength to Weight: Bending, points 17 to 18
30
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 15 to 17
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0.18 to 0.23
0 to 0.080
Chromium (Cr), % 0
14 to 17
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 98.8 to 99.22
5.0 to 9.0
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Nickel (Ni), % 0
70 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8