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AISI 303 Stainless Steel vs. R58150 Titanium

AISI 303 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 AISI 303 stainless steel and the bottom bar is R58150 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 40 to 51
13
Fatigue Strength, MPa 230 to 360
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
52
Shear Strength, MPa 430 to 470
470
Tensile Strength: Ultimate (UTS), MPa 600 to 690
770
Tensile Strength: Yield (Proof), MPa 230 to 420
550

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 930
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 17
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 3.0
31
Embodied Energy, MJ/kg 42
480
Embodied Water, L/kg 140
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
94
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 21 to 25
40
Strength to Weight: Bending, points 20 to 22
35
Thermal Shock Resistance, points 13 to 15
48

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 67.3 to 74.9
0 to 0.1
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 8.0 to 10
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Titanium (Ti), % 0
83.5 to 86