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ACI-ASTM CD3MCuN Steel vs. ASTM A372 Grade H Steel

Both ACI-ASTM CD3MCuN steel and ASTM A372 grade H steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 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 CD3MCuN steel and the bottom bar is ASTM A372 grade H steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
20 to 22
Fatigue Strength, MPa 370
310 to 380
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 790
650 to 910
Tensile Strength: Yield (Proof), MPa 500
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 54
20
Embodied Water, L/kg 180
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 620
500 to 810
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
23 to 32
Strength to Weight: Bending, points 24
21 to 27
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 22
19 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0.3 to 0.4
Chromium (Cr), % 24 to 26.7
0.4 to 0.65
Copper (Cu), % 1.4 to 1.9
0
Iron (Fe), % 58.2 to 65.9
97.3 to 98.3
Manganese (Mn), % 0 to 1.2
0.75 to 1.1
Molybdenum (Mo), % 2.9 to 3.8
0.15 to 0.25
Nickel (Ni), % 5.6 to 6.7
0
Nitrogen (N), % 0.22 to 0.33
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 1.1
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010