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SAE-AISI 1040 Steel vs. R58150 Titanium

SAE-AISI 1040 steel belongs to the iron alloys classification, while R58150 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1040 steel and the bottom bar is R58150 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 13 to 20
13
Fatigue Strength, MPa 220 to 340
330
Poisson's Ratio 0.29
0.32
Reduction in Area, % 40 to 45
68
Shear Modulus, GPa 73
52
Shear Strength, MPa 350 to 390
470
Tensile Strength: Ultimate (UTS), MPa 570 to 640
770
Tensile Strength: Yield (Proof), MPa 320 to 530
550

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400
320
Melting Completion (Liquidus), °C 1460
1760
Melting Onset (Solidus), °C 1420
1700
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 1.4
31
Embodied Energy, MJ/kg 18
480
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
94
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
1110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 20 to 23
40
Strength to Weight: Bending, points 19 to 21
35
Thermal Shock Resistance, points 18 to 20
48

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.1
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 98.6 to 99.03
0 to 0.1
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0
14 to 16
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
83.5 to 86