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R58150 Titanium vs. SAE-AISI 4620 Steel

R58150 titanium belongs to the titanium alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R58150 titanium and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 13
16 to 27
Fatigue Strength, MPa 330
260 to 360
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 52
73
Shear Strength, MPa 470
320 to 420
Tensile Strength: Ultimate (UTS), MPa 770
490 to 680
Tensile Strength: Yield (Proof), MPa 550
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 320
410
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
3.2
Density, g/cm3 5.4
7.9
Embodied Carbon, kg CO2/kg material 31
1.6
Embodied Energy, MJ/kg 480
22
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
330 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 32
24
Strength to Weight: Axial, points 40
17 to 24
Strength to Weight: Bending, points 35
18 to 22
Thermal Shock Resistance, points 48
15 to 20

Alloy Composition

Carbon (C), % 0 to 0.1
0.17 to 0.22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.1
96.4 to 97.4
Manganese (Mn), % 0
0.45 to 0.65
Molybdenum (Mo), % 14 to 16
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 83.5 to 86
0