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SAE-AISI H19 Steel vs. SAE-AISI 1140 Steel

Both SAE-AISI H19 steel and SAE-AISI 1140 steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H19 steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
600 to 700

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1490
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 29
51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.4
Embodied Energy, MJ/kg 110
18
Embodied Water, L/kg 110
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 68
21 to 25
Strength to Weight: Bending, points 22 to 43
20 to 22
Thermal Diffusivity, mm2/s 7.9
14
Thermal Shock Resistance, points 21 to 59
18 to 21

Alloy Composition

Carbon (C), % 0.32 to 0.45
0.37 to 0.44
Chromium (Cr), % 4.0 to 4.8
0
Cobalt (Co), % 4.0 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 85.5
98.4 to 98.9
Manganese (Mn), % 0.2 to 0.5
0.7 to 1.0
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tungsten (W), % 3.8 to 4.5
0
Vanadium (V), % 1.8 to 2.2
0