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ACI-ASTM CD4MCu Steel vs. SAE-AISI H25 Steel

Both ACI-ASTM CD4MCu steel and SAE-AISI H25 steel are iron alloys. They have 68% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is SAE-AISI H25 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 770
710 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1430
1750
Melting Onset (Solidus), °C 1380
1700
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 17
26
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
38
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 3.5
6.2
Embodied Energy, MJ/kg 49
93
Embodied Water, L/kg 180
83

Common Calculations

PREN (Pitting Resistance) 32
29
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 28
22 to 50
Strength to Weight: Bending, points 24
20 to 34
Thermal Diffusivity, mm2/s 4.5
6.7
Thermal Shock Resistance, points 21
22 to 49

Alloy Composition

Carbon (C), % 0 to 0.040
0.22 to 0.32
Chromium (Cr), % 24.5 to 26.5
3.8 to 4.5
Copper (Cu), % 2.8 to 3.3
0 to 0.25
Iron (Fe), % 59.9 to 66.3
77.2 to 81.3
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 1.8 to 2.3
0
Nickel (Ni), % 4.8 to 6.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6