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SAE-AISI H19 Steel vs. ASTM A302 Alloy Steel

Both SAE-AISI H19 steel and ASTM A302 alloy steel are iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H19 steel and the bottom bar is ASTM A302 alloy 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
73
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
590 to 620

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
39 to 51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.4 to 3.0
Density, g/cm3 8.2
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.5
1.5 to 1.6
Embodied Energy, MJ/kg 110
20 to 21
Embodied Water, L/kg 110
48 to 50

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 22
Strength to Weight: Bending, points 22 to 43
20 to 21
Thermal Diffusivity, mm2/s 7.9
10 to 14
Thermal Shock Resistance, points 21 to 59
17 to 18