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R58150 Titanium vs. S17700 Stainless Steel

R58150 titanium belongs to the titanium alloys classification, while S17700 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 13
1.0 to 23
Fatigue Strength, MPa 330
290 to 560
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 52
76
Shear Strength, MPa 470
740 to 940
Tensile Strength: Ultimate (UTS), MPa 770
1180 to 1650
Tensile Strength: Yield (Proof), MPa 550
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 320
890
Melting Completion (Liquidus), °C 1760
1440
Melting Onset (Solidus), °C 1700
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 8.4
11

Otherwise Unclassified Properties

Base Metal Price, % relative 48
13
Density, g/cm3 5.4
7.7
Embodied Carbon, kg CO2/kg material 31
2.8
Embodied Energy, MJ/kg 480
40
Embodied Water, L/kg 150
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
460 to 3750
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 40
42 to 59
Strength to Weight: Bending, points 35
32 to 40
Thermal Shock Resistance, points 48
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.090
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
70.5 to 76.8
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 14 to 16
0
Nickel (Ni), % 0
6.5 to 7.8
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 83.5 to 86
0