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SAE-AISI A10 Steel vs. S31655 Stainless Steel

Both SAE-AISI A10 steel and S31655 stainless steel are iron alloys. They have 72% 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 A10 steel and the bottom bar is S31655 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 810 to 2040
710

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
3.3
Embodied Energy, MJ/kg 27
46
Embodied Water, L/kg 56
160

Common Calculations

PREN (Pitting Resistance) 5.1
27
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29 to 73
25
Strength to Weight: Bending, points 25 to 46
23
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 27 to 68
16

Alloy Composition

Carbon (C), % 1.3 to 1.5
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 90.8 to 93.4
63.2 to 71.9
Manganese (Mn), % 1.6 to 2.1
0 to 2.0
Molybdenum (Mo), % 1.3 to 1.8
0.5 to 1.5
Nickel (Ni), % 1.6 to 2.1
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015