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SAE-AISI T15 Steel vs. ACI-ASTM CN3MN Steel

Both SAE-AISI T15 steel and ACI-ASTM CN3MN steel are iron alloys. They have 52% 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 SAE-AISI T15 steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
620

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1690
1460
Melting Onset (Solidus), °C 1640
1410
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 43
33
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 16
6.2
Embodied Energy, MJ/kg 250
84
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 27
46
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 26 to 71
21
Strength to Weight: Bending, points 22 to 43
20
Thermal Diffusivity, mm2/s 5.6
3.4
Thermal Shock Resistance, points 26 to 70
14

Alloy Composition

Carbon (C), % 1.5 to 1.6
0 to 0.030
Chromium (Cr), % 3.8 to 5.0
20 to 22
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 67.5 to 73.5
41.4 to 50.3
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
6.0 to 7.0
Nickel (Ni), % 0 to 0.3
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0