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ASTM A302 Alloy Steel vs. SAE-AISI 1084 Steel

Both ASTM A302 alloy steel and SAE-AISI 1084 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 A302 alloy steel and the bottom bar is SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
11
Fatigue Strength, MPa 250 to 280
320 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 370 to 390
470 to 550
Tensile Strength: Ultimate (UTS), MPa 590 to 620
780 to 930
Tensile Strength: Yield (Proof), MPa 350 to 390
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 410
400
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 39 to 51
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
1.8
Density, g/cm3 7.8 to 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
1.4
Embodied Energy, MJ/kg 20 to 21
19
Embodied Water, L/kg 48 to 50
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
700 to 960
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 22
28 to 33
Strength to Weight: Bending, points 20 to 21
24 to 27
Thermal Diffusivity, mm2/s 10 to 14
14
Thermal Shock Resistance, points 17 to 18
25 to 30