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ASTM A210 Steel vs. SAE-AISI 8720 Steel

Both ASTM A210 steel and SAE-AISI 8720 steel are iron alloys.

For each property being compared, the top bar is ASTM A210 steel and the bottom bar is SAE-AISI 8720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 160
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
25
Fatigue Strength, MPa 230 to 250
240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 360
320
Tensile Strength: Ultimate (UTS), MPa 470 to 540
500
Tensile Strength: Yield (Proof), MPa 290 to 310
330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460 to 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52 to 53
39
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0 to 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 45 to 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 250
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 19
18
Strength to Weight: Bending, points 17 to 19
18
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 15 to 17
17