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ACI-ASTM CA15M Steel vs. ASTM A203 Steel

Both ACI-ASTM CA15M steel and ASTM A203 steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15M steel and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
22 to 26
Fatigue Strength, MPa 330
210 to 280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 690
520 to 590
Tensile Strength: Yield (Proof), MPa 510
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
3.2 to 4.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
1.6 to 1.7
Embodied Energy, MJ/kg 29
21 to 23
Embodied Water, L/kg 100
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 670
230 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 25
15 to 17