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SAE-AISI H43 Steel vs. AISI 347LN Stainless Steel

Both SAE-AISI H43 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 H43 steel and the bottom bar is AISI 347LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
590

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1530
1430
Melting Onset (Solidus), °C 1480
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.5
Embodied Energy, MJ/kg 120
49
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 31
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 75
21
Strength to Weight: Bending, points 22 to 46
20
Thermal Diffusivity, mm2/s 8.3
4.1
Thermal Shock Resistance, points 21 to 62
13

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.0050 to 0.020
Chromium (Cr), % 3.8 to 4.5
17 to 19
Iron (Fe), % 83.2 to 85.9
64.3 to 73.7
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 8.5
0
Nickel (Ni), % 0
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 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 1.8 to 2.2
0