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S30815 Stainless Steel vs. SAE-AISI A2 Steel

Both S30815 stainless steel and SAE-AISI A2 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 (11, in this case) are not shown.

For each property being compared, the top bar is S30815 stainless steel and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 680
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
38
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
5.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 47
38
Embodied Water, L/kg 160
73

Common Calculations

PREN (Pitting Resistance) 24
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25 to 73
Strength to Weight: Bending, points 22
23 to 46
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 15
25 to 71

Alloy Composition

Carbon (C), % 0.050 to 0.1
1.0 to 1.1
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.8 to 68.4
89.4 to 93.3
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 10 to 12
0 to 0.3
Nitrogen (N), % 0.14 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.4 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.15 to 0.5