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R58150 Titanium vs. S30815 Stainless Steel

R58150 titanium belongs to the titanium alloys classification, while S30815 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 13
45
Fatigue Strength, MPa 330
320
Poisson's Ratio 0.32
0.28
Reduction in Area, % 68
56
Shear Modulus, GPa 52
77
Shear Strength, MPa 470
480
Tensile Strength: Ultimate (UTS), MPa 770
680
Tensile Strength: Yield (Proof), MPa 550
350

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 320
1020
Melting Completion (Liquidus), °C 1760
1400
Melting Onset (Solidus), °C 1700
1360
Specific Heat Capacity, J/kg-K 500
490
Thermal Expansion, µm/m-K 8.4
17

Otherwise Unclassified Properties

Base Metal Price, % relative 48
17
Density, g/cm3 5.4
7.7
Embodied Carbon, kg CO2/kg material 31
3.3
Embodied Energy, MJ/kg 480
47
Embodied Water, L/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
260
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 35
22
Thermal Shock Resistance, points 48
15

Alloy Composition

Carbon (C), % 0 to 0.1
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
20 to 22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
62.8 to 68.4
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 14 to 16
0
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0 to 0.050
0.14 to 0.2
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 83.5 to 86
0