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S35500 Stainless Steel vs. Grade 30 Titanium

S35500 stainless steel belongs to the iron alloys classification, while grade 30 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S35500 stainless steel and the bottom bar is grade 30 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 14
23
Fatigue Strength, MPa 690 to 730
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Shear Strength, MPa 810 to 910
240
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
390
Tensile Strength: Yield (Proof), MPa 1200 to 1280
350

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 870
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 11
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.5
36
Embodied Energy, MJ/kg 47
600
Embodied Water, L/kg 130
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
86
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 47 to 53
24
Strength to Weight: Bending, points 34 to 37
26
Thermal Diffusivity, mm2/s 4.4
8.6
Thermal Shock Resistance, points 44 to 49
30

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.080
Chromium (Cr), % 15 to 16
0
Cobalt (Co), % 0
0.2 to 0.8
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 73.2 to 77.7
0 to 0.3
Manganese (Mn), % 0.5 to 1.3
0
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98 to 99.76
Residuals, % 0
0 to 0.4