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R56401 Titanium vs. ASTM A372 Grade M Steel

R56401 titanium belongs to the titanium alloys classification, while ASTM A372 grade M steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is R56401 titanium and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.1
18 to 21
Fatigue Strength, MPa 480
450 to 520
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Shear Strength, MPa 560
510 to 570
Tensile Strength: Ultimate (UTS), MPa 940
810 to 910
Tensile Strength: Yield (Proof), MPa 850
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
450
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
46
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
5.0
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 38
2.0
Embodied Energy, MJ/kg 610
27
Embodied Water, L/kg 200
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
160
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
1140 to 1580
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 59
29 to 32
Strength to Weight: Bending, points 48
24 to 27
Thermal Diffusivity, mm2/s 2.9
12
Thermal Shock Resistance, points 67
24 to 27

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.23
Chromium (Cr), % 0
1.5 to 2.0
Hydrogen (H), % 0 to 0.012
0
Iron (Fe), % 0 to 0.25
92.5 to 95.1
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0
2.8 to 3.9
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0 to 0.080