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EN 1.4581 Stainless Steel vs. R58150 Titanium

EN 1.4581 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 (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4581 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, % 28
13
Fatigue Strength, MPa 150
330
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
52
Tensile Strength: Ultimate (UTS), MPa 510
770
Tensile Strength: Yield (Proof), MPa 210
550

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 990
320
Melting Completion (Liquidus), °C 1440
1760
Melting Onset (Solidus), °C 1400
1700
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 16
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 21
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 4.2
31
Embodied Energy, MJ/kg 59
480
Embodied Water, L/kg 160
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
94
Resilience: Unit (Modulus of Resilience), kJ/m3 110
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 12
48

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 18 to 20
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 61.4 to 71
0 to 0.1
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 2.5
14 to 16
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
83.5 to 86