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SAE-AISI H25 Steel vs. S35500 Stainless Steel

Both SAE-AISI H25 steel and S35500 stainless steel are iron alloys. They have 80% 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 S35500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
1330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1750
1460
Melting Onset (Solidus), °C 1700
1420
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
16
Density, g/cm3 9.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
3.5
Embodied Energy, MJ/kg 93
47
Embodied Water, L/kg 83
130

Common Calculations

PREN (Pitting Resistance) 29
27
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 22 to 50
47 to 53
Strength to Weight: Bending, points 20 to 34
34 to 37
Thermal Diffusivity, mm2/s 6.7
4.4
Thermal Shock Resistance, points 22 to 49
44 to 49

Alloy Composition

Carbon (C), % 0.22 to 0.32
0.1 to 0.15
Chromium (Cr), % 3.8 to 4.5
15 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.2 to 81.3
73.2 to 77.7
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0 to 0.3
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0