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S40975 Stainless Steel vs. R58150 Titanium

S40975 stainless steel belongs to the iron alloys classification, while R58150 titanium belongs to the titanium 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 S40975 stainless steel and the bottom bar is R58150 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 22
13
Fatigue Strength, MPa 210
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
52
Shear Strength, MPa 290
470
Tensile Strength: Ultimate (UTS), MPa 460
770
Tensile Strength: Yield (Proof), MPa 310
550

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 710
320
Melting Completion (Liquidus), °C 1450
1760
Melting Onset (Solidus), °C 1400
1700
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 10
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 2.0
31
Embodied Energy, MJ/kg 28
480
Embodied Water, L/kg 95
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
94
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 17
40
Strength to Weight: Bending, points 17
35
Thermal Shock Resistance, points 17
48

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 10.5 to 11.7
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 84.4 to 89
0 to 0.1
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 0.5 to 1.0
0
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.75
83.5 to 86