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SAE-AISI S5 Steel vs. AISI 309HCb Stainless Steel

Both SAE-AISI S5 steel and AISI 309HCb stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S5 steel and the bottom bar is AISI 309HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 680 to 1940
590

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 42
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
23
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.1
Embodied Energy, MJ/kg 29
59
Embodied Water, L/kg 51
170

Common Calculations

PREN (Pitting Resistance) 2.9
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 70
21
Strength to Weight: Bending, points 22 to 45
20
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 23 to 65
13

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.040 to 0.1
Chromium (Cr), % 0 to 0.5
22 to 24
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.6 to 97
56 to 66
Manganese (Mn), % 0.6 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.2 to 1.4
0
Nickel (Ni), % 0
12 to 16
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.8 to 2.3
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.35
0