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ASTM A387 Grade 11 Steel vs. ACI-ASTM CD4MCu Steel

Both ASTM A387 grade 11 steel and ACI-ASTM CD4MCu steel are iron alloys. They have 66% of their average alloy composition in common. 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 A387 grade 11 steel and the bottom bar is ACI-ASTM CD4MCu steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
18
Fatigue Strength, MPa 200 to 250
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 500 to 600
770
Tensile Strength: Yield (Proof), MPa 270 to 350
550

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 430
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.5
Embodied Energy, MJ/kg 21
49
Embodied Water, L/kg 53
180

Common Calculations

PREN (Pitting Resistance) 3.1
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
28
Strength to Weight: Bending, points 18 to 20
24
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 15 to 18
21

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.040
Chromium (Cr), % 1.0 to 1.5
24.5 to 26.5
Copper (Cu), % 0
2.8 to 3.3
Iron (Fe), % 96.2 to 97.6
59.9 to 66.3
Manganese (Mn), % 0.4 to 0.65
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
1.8 to 2.3
Nickel (Ni), % 0
4.8 to 6.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.5 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.040