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R58150 Titanium vs. ASTM A387 Grade 5 Steel

R58150 titanium belongs to the titanium alloys classification, while ASTM A387 grade 5 steel belongs to the iron alloys. There are 26 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 R58150 titanium and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 13
20 to 21
Fatigue Strength, MPa 330
160 to 240
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 52
74
Shear Strength, MPa 470
310 to 380
Tensile Strength: Ultimate (UTS), MPa 770
500 to 600
Tensile Strength: Yield (Proof), MPa 550
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 320
510
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
4.3
Density, g/cm3 5.4
7.8
Embodied Carbon, kg CO2/kg material 31
1.7
Embodied Energy, MJ/kg 480
23
Embodied Water, L/kg 150
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
140 to 320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 40
18 to 21
Strength to Weight: Bending, points 35
18 to 20
Thermal Shock Resistance, points 48
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
4.0 to 6.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
92.1 to 95.3
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 14 to 16
0.45 to 0.65
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 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 83.5 to 86
0