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SAE-AISI H26 Steel vs. S46800 Stainless Steel

Both SAE-AISI H26 steel and S46800 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 (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H26 steel and the bottom bar is S46800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 720 to 2100
470

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Melting Completion (Liquidus), °C 1810
1440
Melting Onset (Solidus), °C 1760
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 22
23
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 45
12
Density, g/cm3 9.3
7.7
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 120
37
Embodied Water, L/kg 90
130

Common Calculations

PREN (Pitting Resistance) 34
19
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 22 to 63
17
Strength to Weight: Bending, points 19 to 39
18
Thermal Diffusivity, mm2/s 5.6
6.1
Thermal Shock Resistance, points 22 to 63
16

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
18 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.3 to 77.5
76.5 to 81.8
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0.1 to 0.6
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.070 to 0.3
Tungsten (W), % 17.3 to 19
0
Vanadium (V), % 0.75 to 1.3
0