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AISI 445 Stainless Steel vs. R58150 Titanium

AISI 445 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 445 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, % 25
13
Fatigue Strength, MPa 160
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
52
Shear Strength, MPa 310
470
Tensile Strength: Ultimate (UTS), MPa 480
770
Tensile Strength: Yield (Proof), MPa 230
550

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 950
320
Melting Completion (Liquidus), °C 1440
1760
Melting Onset (Solidus), °C 1390
1700
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 11
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
48
Density, g/cm3 7.7
5.4
Embodied Carbon, kg CO2/kg material 2.6
31
Embodied Energy, MJ/kg 38
480
Embodied Water, L/kg 130
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
94
Resilience: Unit (Modulus of Resilience), kJ/m3 140
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 18
35
Thermal Shock Resistance, points 16
48

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.3 to 0.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 74.9 to 80.7
0 to 0.1
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 0 to 0.6
0
Niobium (Nb), % 0 to 0.8
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 0.012
0
Titanium (Ti), % 0
83.5 to 86