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SAE-AISI 1021 Steel vs. EN 1.6773 Steel

Both SAE-AISI 1021 steel and EN 1.6773 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 EN 1.6773 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 150
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 27
11
Fatigue Strength, MPa 190 to 300
560
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 320
670
Tensile Strength: Ultimate (UTS), MPa 480 to 530
1120
Tensile Strength: Yield (Proof), MPa 260 to 450
910

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
450
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 18
26
Embodied Water, L/kg 46
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
2210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 19
40
Strength to Weight: Bending, points 17 to 18
30
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15 to 17
33

Alloy Composition

Carbon (C), % 0.18 to 0.23
0.32 to 0.39
Chromium (Cr), % 0
1.6 to 2.0
Iron (Fe), % 98.8 to 99.22
92 to 93.9
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0
3.6 to 4.1
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.025