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EN 1.1221 Steel vs. R58150 Titanium

EN 1.1221 steel belongs to the iron alloys classification, while R58150 titanium belongs to the titanium 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 EN 1.1221 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, % 10 to 21
13
Fatigue Strength, MPa 240 to 340
330
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
52
Shear Strength, MPa 450 to 520
470
Tensile Strength: Ultimate (UTS), MPa 730 to 870
770
Tensile Strength: Yield (Proof), MPa 390 to 550
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 1410
1700
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
48
Density, g/cm3 7.8
5.4
Embodied Carbon, kg CO2/kg material 1.5
31
Embodied Energy, MJ/kg 19
480
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
94
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 800
1110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 26 to 31
40
Strength to Weight: Bending, points 23 to 26
35
Thermal Shock Resistance, points 23 to 28
48

Alloy Composition

Carbon (C), % 0.57 to 0.65
0 to 0.1
Chromium (Cr), % 0 to 0.4
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 97.1 to 98.8
0 to 0.1
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0 to 0.1
14 to 16
Nickel (Ni), % 0 to 0.4
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
83.5 to 86