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SAE-AISI A10 Steel vs. S31730 Stainless Steel

Both SAE-AISI A10 steel and S31730 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A10 steel and the bottom bar is S31730 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
77
Tensile Strength: Ultimate (UTS), MPa 810 to 2040
540

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.1
4.6
Embodied Energy, MJ/kg 27
63
Embodied Water, L/kg 56
180

Common Calculations

PREN (Pitting Resistance) 5.1
30
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 73
19
Strength to Weight: Bending, points 25 to 46
18
Thermal Shock Resistance, points 27 to 68
12

Alloy Composition

Carbon (C), % 1.3 to 1.5
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.25
4.0 to 5.0
Iron (Fe), % 90.8 to 93.4
52.4 to 61
Manganese (Mn), % 1.6 to 2.1
0 to 2.0
Molybdenum (Mo), % 1.3 to 1.8
3.0 to 4.0
Nickel (Ni), % 1.6 to 2.1
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010