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ACI-ASTM CK3MCuN Steel vs. SAE-AISI H25 Steel

Both ACI-ASTM CK3MCuN steel and SAE-AISI H25 steel are iron alloys. They have 58% of their average alloy composition in common. There are 22 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 CK3MCuN 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 0.28
0.29
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 620
710 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1460
1750
Melting Onset (Solidus), °C 1350
1700
Specific Heat Capacity, J/kg-K 460
420
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 29
38
Density, g/cm3 8.0
9.1
Embodied Carbon, kg CO2/kg material 5.6
6.2
Embodied Energy, MJ/kg 76
93
Embodied Water, L/kg 190
83

Common Calculations

PREN (Pitting Resistance) 45
29
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 21
22 to 50
Strength to Weight: Bending, points 20
20 to 34
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 14
22 to 49

Alloy Composition

Carbon (C), % 0 to 0.025
0.22 to 0.32
Chromium (Cr), % 19.5 to 20.5
3.8 to 4.5
Copper (Cu), % 0.5 to 1.0
0 to 0.25
Iron (Fe), % 49.5 to 56.3
77.2 to 81.3
Manganese (Mn), % 0 to 1.2
0.15 to 0.4
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0 to 0.3
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6