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ACI-ASTM CT15C Steel vs. SAE-AISI H19 Steel

Both ACI-ASTM CT15C steel and SAE-AISI H19 steel are iron alloys. They have 50% 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 CT15C steel and the bottom bar is SAE-AISI H19 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 500
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1540
Melting Onset (Solidus), °C 1360
1490
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
29
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
22
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 6.1
7.5
Embodied Energy, MJ/kg 88
110
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 20
13
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24 to 68
Strength to Weight: Bending, points 17
22 to 43
Thermal Diffusivity, mm2/s 3.2
7.9
Thermal Shock Resistance, points 12
21 to 59

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.32 to 0.45
Chromium (Cr), % 19 to 21
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 40.3 to 49.2
81.4 to 85.5
Manganese (Mn), % 0.15 to 1.5
0.2 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 31 to 34
0 to 0.3
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 1.5
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2