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SAE-AISI H42 Steel vs. S44735 Stainless Steel

Both SAE-AISI H42 steel and S44735 stainless steel are iron alloys. They have 73% 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 H42 steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
82
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
630

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1620
1460
Melting Onset (Solidus), °C 1570
1420
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
21
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
4.4
Embodied Energy, MJ/kg 130
61
Embodied Water, L/kg 98
180

Common Calculations

PREN (Pitting Resistance) 31
42
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 23 to 65
23
Strength to Weight: Bending, points 21 to 42
21
Thermal Shock Resistance, points 20 to 57
20

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
28 to 30
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
60.7 to 68.4
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
3.6 to 4.2
Nickel (Ni), % 0 to 0.3
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0