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SAE-AISI T15 Steel vs. S30615 Stainless Steel

Both SAE-AISI T15 steel and S30615 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 22 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 T15 steel and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 830 to 2240
690

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Melting Completion (Liquidus), °C 1690
1370
Melting Onset (Solidus), °C 1640
1320
Specific Heat Capacity, J/kg-K 430
500
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 43
19
Density, g/cm3 8.7
7.6
Embodied Carbon, kg CO2/kg material 16
3.7
Embodied Energy, MJ/kg 250
53
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 27
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 26 to 71
25
Strength to Weight: Bending, points 22 to 43
23
Thermal Diffusivity, mm2/s 5.6
3.7
Thermal Shock Resistance, points 26 to 70
16

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 1.5 to 1.6
0.16 to 0.24
Chromium (Cr), % 3.8 to 5.0
17 to 19.5
Cobalt (Co), % 4.8 to 5.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 67.5 to 73.5
56.7 to 65.3
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.3
13.5 to 16
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
3.2 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 11.8 to 13
0
Vanadium (V), % 4.5 to 5.3
0