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S30815 Stainless Steel vs. Grade 32 Titanium

S30815 stainless steel belongs to the iron alloys classification, while grade 32 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S30815 stainless steel and the bottom bar is grade 32 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 45
11
Fatigue Strength, MPa 320
390
Poisson's Ratio 0.28
0.32
Reduction in Area, % 56
28
Shear Modulus, GPa 77
40
Shear Strength, MPa 480
460
Tensile Strength: Ultimate (UTS), MPa 680
770
Tensile Strength: Yield (Proof), MPa 350
670

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1020
310
Melting Completion (Liquidus), °C 1400
1610
Melting Onset (Solidus), °C 1360
1560
Specific Heat Capacity, J/kg-K 490
550
Thermal Conductivity, W/m-K 15
7.5
Thermal Expansion, µm/m-K 17
8.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
38
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 3.3
32
Embodied Energy, MJ/kg 47
530
Embodied Water, L/kg 160
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
83
Resilience: Unit (Modulus of Resilience), kJ/m3 310
2100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25
47
Strength to Weight: Bending, points 22
41
Thermal Diffusivity, mm2/s 4.0
3.0
Thermal Shock Resistance, points 15
63

Alloy Composition

Aluminum (Al), % 0
4.5 to 5.5
Carbon (C), % 0.050 to 0.1
0 to 0.080
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 20 to 22
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 62.8 to 68.4
0 to 0.25
Manganese (Mn), % 0 to 0.8
0
Molybdenum (Mo), % 0
0.6 to 1.2
Nickel (Ni), % 10 to 12
0
Nitrogen (N), % 0.14 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.11
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.4 to 2.0
0.060 to 0.14
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.6 to 1.4
Titanium (Ti), % 0
88.1 to 93
Vanadium (V), % 0
0.6 to 1.4
Zirconium (Zr), % 0
0.6 to 1.4
Residuals, % 0
0 to 0.4