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SAE-AISI H19 Steel vs. ASTM Grade HD Steel

Both SAE-AISI H19 steel and ASTM grade HD steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
590

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1540
1410
Melting Onset (Solidus), °C 1490
1370
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 29
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
17
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 7.5
3.1
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 13
29
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 24 to 68
21
Strength to Weight: Bending, points 22 to 43
20
Thermal Diffusivity, mm2/s 7.9
4.3
Thermal Shock Resistance, points 21 to 59
19

Alloy Composition

Carbon (C), % 0.32 to 0.45
0 to 0.5
Chromium (Cr), % 4.0 to 4.8
26 to 30
Cobalt (Co), % 4.0 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 85.5
58.4 to 70
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.55
0 to 0.5
Nickel (Ni), % 0 to 0.3
4.0 to 7.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 3.8 to 4.5
0
Vanadium (V), % 1.8 to 2.2
0