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SAE-AISI 8620 Steel vs. EN 1.7216 Steel

Both SAE-AISI 8620 steel and EN 1.7216 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 8620 steel and the bottom bar is EN 1.7216 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 210
200 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 31
12 to 23
Fatigue Strength, MPa 270 to 360
290 to 440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340 to 420
410 to 560
Tensile Strength: Ultimate (UTS), MPa 520 to 690
650 to 930
Tensile Strength: Yield (Proof), MPa 360 to 570
400 to 690

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
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 39
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 50
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 150
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 880
430 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 24
23 to 33
Strength to Weight: Bending, points 18 to 22
21 to 27
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 15 to 20
19 to 27

Alloy Composition

Carbon (C), % 0.18 to 0.23
0.27 to 0.34
Chromium (Cr), % 0.4 to 0.6
0.8 to 1.2
Iron (Fe), % 96.9 to 98
97.2 to 98.4
Manganese (Mn), % 0.7 to 0.9
0.35 to 0.6
Molybdenum (Mo), % 0.15 to 0.25
0.15 to 0.3
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.035

Comparable Variants