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SAE-AISI H42 Steel vs. S44626 Stainless Steel

Both SAE-AISI H42 steel and S44626 stainless steel are iron alloys. They have 77% 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 H42 steel and the bottom bar is S44626 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 700 to 1980
540

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1620
1440
Melting Onset (Solidus), °C 1570
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 24
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
14
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.9
Embodied Energy, MJ/kg 130
42
Embodied Water, L/kg 98
160

Common Calculations

PREN (Pitting Resistance) 31
30
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 23 to 65
19
Strength to Weight: Bending, points 21 to 42
19
Thermal Diffusivity, mm2/s 6.5
4.6
Thermal Shock Resistance, points 20 to 57
18

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
25 to 27
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 79.3 to 83.8
68.1 to 74.1
Manganese (Mn), % 0.15 to 0.4
0 to 0.75
Molybdenum (Mo), % 4.5 to 5.5
0.75 to 1.5
Nickel (Ni), % 0 to 0.3
0 to 0.5
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0