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ASTM A372 Grade L Steel vs. ACI-ASTM CA15M Steel

Both ASTM A372 grade L steel and ACI-ASTM CA15M steel are iron alloys. They have 88% of their average alloy composition in common. 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 ASTM A372 grade L steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
20
Fatigue Strength, MPa 670
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 1160
690
Tensile Strength: Yield (Proof), MPa 1040
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
760
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
7.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.1
Embodied Energy, MJ/kg 22
29
Embodied Water, L/kg 54
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
130
Resilience: Unit (Modulus of Resilience), kJ/m3 2890
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 41
25
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 12
7.2
Thermal Shock Resistance, points 34
25

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.15
Chromium (Cr), % 0.7 to 0.9
11.5 to 14
Iron (Fe), % 95.2 to 96.3
82.1 to 88.4
Manganese (Mn), % 0.6 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
0.15 to 1.0
Nickel (Ni), % 1.7 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.65
Sulfur (S), % 0 to 0.010
0 to 0.040