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SAE-AISI H19 Steel vs. S17400 Stainless Steel

Both SAE-AISI H19 steel and S17400 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H19 steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1540
1440
Melting Onset (Solidus), °C 1490
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 29
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
14
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.5
2.7
Embodied Energy, MJ/kg 110
39
Embodied Water, L/kg 110
130

Common Calculations

PREN (Pitting Resistance) 13
16
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 68
32 to 49
Strength to Weight: Bending, points 22 to 43
27 to 35
Thermal Diffusivity, mm2/s 7.9
4.5
Thermal Shock Resistance, points 21 to 59
30 to 46

Alloy Composition

Carbon (C), % 0.32 to 0.45
0 to 0.070
Chromium (Cr), % 4.0 to 4.8
15 to 17
Cobalt (Co), % 4.0 to 4.5
0
Copper (Cu), % 0 to 0.25
3.0 to 5.0
Iron (Fe), % 81.4 to 85.5
70.4 to 78.9
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0 to 0.3
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 4.5
0
Vanadium (V), % 1.8 to 2.2
0