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ASTM A588 Steel vs. SAE-AISI 1018 Steel

Both ASTM A588 steel and SAE-AISI 1018 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A588 steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
17 to 27
Fatigue Strength, MPa 270
180 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
280 to 300
Tensile Strength: Ultimate (UTS), MPa 550
430 to 480
Tensile Strength: Yield (Proof), MPa 390
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410 to 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43 to 44
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
1.4
Embodied Energy, MJ/kg 20 to 22
18
Embodied Water, L/kg 50 to 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 400
150 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
15 to 17
Strength to Weight: Bending, points 19
16 to 17
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 16
14 to 15