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SAE-AISI H19 Steel vs. AISI 347LN Stainless Steel

Both SAE-AISI H19 steel and AISI 347LN stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H19 steel and the bottom bar is AISI 347LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
590

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1490
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 29
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
18
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.5
Embodied Energy, MJ/kg 110
49
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 13
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 68
21
Strength to Weight: Bending, points 22 to 43
20
Thermal Diffusivity, mm2/s 7.9
4.1
Thermal Shock Resistance, points 21 to 59
13

Alloy Composition

Carbon (C), % 0.32 to 0.45
0.0050 to 0.020
Chromium (Cr), % 4.0 to 4.8
17 to 19
Cobalt (Co), % 4.0 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 85.5
64.3 to 73.7
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0 to 0.3
9.0 to 13
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0
0.060 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
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