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SAE-AISI A3 Steel vs. S30615 Stainless Steel

Both SAE-AISI A3 steel and S30615 stainless steel are iron alloys. They have 67% 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 A3 steel and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 700 to 2150
690

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1450
1370
Melting Onset (Solidus), °C 1410
1320
Specific Heat Capacity, J/kg-K 470
500
Thermal Conductivity, W/m-K 37
14
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 4.4
3.7
Embodied Energy, MJ/kg 67
53
Embodied Water, L/kg 78
170

Common Calculations

PREN (Pitting Resistance) 8.9
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 77
25
Strength to Weight: Bending, points 23 to 48
23
Thermal Diffusivity, mm2/s 10
3.7
Thermal Shock Resistance, points 23 to 70
16

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 1.2 to 1.3
0.16 to 0.24
Chromium (Cr), % 4.8 to 5.5
17 to 19.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 88.7 to 92
56.7 to 65.3
Manganese (Mn), % 0.4 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
13.5 to 16
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
3.2 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.8 to 1.4
0