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SAE-AISI H43 Steel vs. S45503 Stainless Steel

Both SAE-AISI H43 steel and S45503 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H43 steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
1610 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1530
1440
Melting Onset (Solidus), °C 1480
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 14
15
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 8.2
3.4
Embodied Energy, MJ/kg 120
48
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 31
13
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 75
57 to 65
Strength to Weight: Bending, points 22 to 46
39 to 43
Thermal Shock Resistance, points 21 to 62
56 to 64

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.010
Chromium (Cr), % 3.8 to 4.5
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 83.2 to 85.9
72.4 to 78.9
Manganese (Mn), % 0.15 to 0.4
0 to 0.5
Molybdenum (Mo), % 7.8 to 8.5
0 to 0.5
Nickel (Ni), % 0
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.45
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4
Vanadium (V), % 1.8 to 2.2
0