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R58150 Titanium vs. EN 1.7231 Steel

R58150 titanium belongs to the titanium alloys classification, while EN 1.7231 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 13
11 to 12
Fatigue Strength, MPa 330
360 to 500
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 52
73
Tensile Strength: Ultimate (UTS), MPa 770
790 to 930
Tensile Strength: Yield (Proof), MPa 550
570 to 800

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 320
420
Melting Completion (Liquidus), °C 1760
1460
Melting Onset (Solidus), °C 1700
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 8.4
13

Otherwise Unclassified Properties

Base Metal Price, % relative 48
2.5
Density, g/cm3 5.4
7.8
Embodied Carbon, kg CO2/kg material 31
1.5
Embodied Energy, MJ/kg 480
20
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
870 to 1700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 40
28 to 33
Strength to Weight: Bending, points 35
24 to 27
Thermal Shock Resistance, points 48
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.1
0.38 to 0.45
Chromium (Cr), % 0
0.8 to 1.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
96.4 to 98.1
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 14 to 16
0.15 to 0.3
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 83.5 to 86
0