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SAE-AISI H43 Steel vs. S44625 Stainless Steel

Both SAE-AISI H43 steel and S44625 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H43 steel and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
590

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1530
1440
Melting Onset (Solidus), °C 1480
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 30
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 14
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 8.2
2.8
Embodied Energy, MJ/kg 120
39
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 31
30
Stiffness to Weight: Axial, points 14
15
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
4.6
Thermal Shock Resistance, points 21 to 62
19

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.010
Chromium (Cr), % 3.8 to 4.5
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 83.2 to 85.9
69.4 to 74.3
Manganese (Mn), % 0.15 to 0.4
0 to 0.4
Molybdenum (Mo), % 7.8 to 8.5
0.75 to 1.5
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 1.8 to 2.2
0