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ASTM A572 Steel vs. SAE-AISI 5147 Steel

Both ASTM A572 steel and SAE-AISI 5147 steel are iron alloys.

For each property being compared, the top bar is ASTM A572 steel and the bottom bar is SAE-AISI 5147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 25
20
Fatigue Strength, MPa 240 to 340
250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300 to 380
370
Tensile Strength: Ultimate (UTS), MPa 470 to 620
600
Tensile Strength: Yield (Proof), MPa 330 to 510
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 22
19
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
21
Strength to Weight: Bending, points 17 to 21
20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 14 to 18
18