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EN 1.4855 Stainless Steel vs. R58150 Titanium

EN 1.4855 stainless steel belongs to the iron alloys classification, while R58150 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4855 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, % 4.6
13
Fatigue Strength, MPa 120
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
52
Tensile Strength: Ultimate (UTS), MPa 500
770
Tensile Strength: Yield (Proof), MPa 250
550

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1050
320
Melting Completion (Liquidus), °C 1400
1760
Melting Onset (Solidus), °C 1350
1700
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 34
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 5.9
31
Embodied Energy, MJ/kg 85
480
Embodied Water, L/kg 200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
94
Resilience: Unit (Modulus of Resilience), kJ/m3 160
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 18
40
Strength to Weight: Bending, points 18
35
Thermal Shock Resistance, points 11
48

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.1
Chromium (Cr), % 23 to 25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 42.6 to 51.9
0 to 0.1
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
14 to 16
Nickel (Ni), % 23 to 25
0
Niobium (Nb), % 0.8 to 1.8
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
83.5 to 86