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ACI-ASTM CA40F Steel vs. ASTM A302 Alloy Steel

Both ACI-ASTM CA40F steel and ASTM A302 alloy steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40F steel and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
20 to 23
Fatigue Strength, MPa 320
250 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
590 to 620
Tensile Strength: Yield (Proof), MPa 550
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
39 to 51
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.4 to 3.0
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.0
1.5 to 1.6
Embodied Energy, MJ/kg 28
20 to 21
Embodied Water, L/kg 100
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
330 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
21 to 22
Strength to Weight: Bending, points 24
20 to 21
Thermal Diffusivity, mm2/s 7.2
10 to 14
Thermal Shock Resistance, points 28
17 to 18