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ASTM A283 Carbon Steel vs. SAE-AISI 8620 Steel

Both ASTM A283 carbon steel and SAE-AISI 8620 steel are iron alloys.

For each property being compared, the top bar is ASTM A283 carbon steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 26 to 34
13 to 31
Fatigue Strength, MPa 150 to 190
270 to 360
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240 to 310
340 to 420
Tensile Strength: Ultimate (UTS), MPa 360 to 480
520 to 690
Tensile Strength: Yield (Proof), MPa 180 to 260
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 51 to 53
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 91 to 180
340 to 880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 17
18 to 24
Strength to Weight: Bending, points 14 to 17
18 to 22
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 11 to 15
15 to 20