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SAE-AISI H25 Steel vs. S32050 Stainless Steel

Both SAE-AISI H25 steel and S32050 stainless steel are iron alloys. They have 52% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H25 steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
770

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1750
1460
Melting Onset (Solidus), °C 1700
1410
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 38
31
Density, g/cm3 9.1
8.0
Embodied Carbon, kg CO2/kg material 6.2
6.0
Embodied Energy, MJ/kg 93
81
Embodied Water, L/kg 83
210

Common Calculations

PREN (Pitting Resistance) 29
48
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 50
27
Strength to Weight: Bending, points 20 to 34
23
Thermal Diffusivity, mm2/s 6.7
3.3
Thermal Shock Resistance, points 22 to 49
17

Alloy Composition

Carbon (C), % 0.22 to 0.32
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
22 to 24
Copper (Cu), % 0 to 0.25
0 to 0.4
Iron (Fe), % 77.2 to 81.3
43.1 to 51.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 0
6.0 to 6.6
Nickel (Ni), % 0 to 0.3
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0