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ACI-ASTM CD4MCu Steel vs. AWS E312

Both ACI-ASTM CD4MCu steel and AWS E312 are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is AWS E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
25
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 770
740

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 18
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.6
Embodied Energy, MJ/kg 49
52
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 32
31
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.15
Chromium (Cr), % 24.5 to 26.5
28 to 32
Copper (Cu), % 2.8 to 3.3
0 to 0.75
Iron (Fe), % 59.9 to 66.3
52.3 to 63.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.75
Nickel (Ni), % 4.8 to 6.0
8.0 to 10.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030