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R58150 Titanium vs. EN 1.4518 Stainless Steel

R58150 titanium belongs to the titanium alloys classification, while EN 1.4518 stainless steel belongs to the iron alloys. There are 25 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 EN 1.4518 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 13
34
Fatigue Strength, MPa 330
160
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 52
79
Tensile Strength: Ultimate (UTS), MPa 770
490
Tensile Strength: Yield (Proof), MPa 550
210

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 320
1000
Melting Completion (Liquidus), °C 1760
1450
Melting Onset (Solidus), °C 1700
1400
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 8.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 48
20
Density, g/cm3 5.4
7.9
Embodied Carbon, kg CO2/kg material 31
4.0
Embodied Energy, MJ/kg 480
55
Embodied Water, L/kg 150
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 35
18
Thermal Shock Resistance, points 48
14

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
18 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
61.4 to 70
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 14 to 16
3.0 to 3.5
Nickel (Ni), % 0
9.0 to 12
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 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 83.5 to 86
0