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ASTM A204 Steel vs. ACI-ASTM CA40 Steel

Both ASTM A204 steel and ACI-ASTM CA40 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 ASTM A204 steel and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
10
Fatigue Strength, MPa 200 to 220
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 520 to 590
910
Tensile Strength: Yield (Proof), MPa 290 to 330
860

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
750
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420 to 1430
1500
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
7.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.0
Embodied Energy, MJ/kg 20
28
Embodied Water, L/kg 47
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
89
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
1910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
33
Strength to Weight: Bending, points 18 to 20
27
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 15 to 17
33