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R58150 Titanium vs. S39274 Stainless Steel

R58150 titanium belongs to the titanium alloys classification, while S39274 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 S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
210
Elongation at Break, % 13
17
Fatigue Strength, MPa 330
380
Poisson's Ratio 0.32
0.27
Reduction in Area, % 68
34
Shear Modulus, GPa 52
81
Shear Strength, MPa 470
560
Tensile Strength: Ultimate (UTS), MPa 770
900
Tensile Strength: Yield (Proof), MPa 550
620

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1760
1480
Melting Onset (Solidus), °C 1700
1430
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 8.4
13

Otherwise Unclassified Properties

Base Metal Price, % relative 48
24
Density, g/cm3 5.4
8.0
Embodied Carbon, kg CO2/kg material 31
4.3
Embodied Energy, MJ/kg 480
60
Embodied Water, L/kg 150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 40
32
Strength to Weight: Bending, points 35
26
Thermal Shock Resistance, points 48
25

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
57 to 65.6
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 14 to 16
2.5 to 3.5
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0 to 0.050
0.24 to 0.32
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 83.5 to 86
0
Tungsten (W), % 0
1.5 to 2.5