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SAE-AISI H23 Steel vs. S41045 Stainless Steel

Both SAE-AISI H23 steel and S41045 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 22 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 H23 steel and the bottom bar is S41045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 760 to 1550
430

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1680
1450
Melting Onset (Solidus), °C 1630
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 20
29
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
8.5
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 6.9
2.2
Embodied Energy, MJ/kg 110
31
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 32
13
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24 to 49
16
Strength to Weight: Bending, points 21 to 34
16
Thermal Diffusivity, mm2/s 5.2
7.8
Thermal Shock Resistance, points 23 to 47
16

Alloy Composition

Carbon (C), % 0.25 to 0.35
0 to 0.030
Chromium (Cr), % 11 to 12.8
12 to 13
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.7
83.8 to 88
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0 to 0.6
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11 to 12.8
0
Vanadium (V), % 0.75 to 1.3
0