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EN 1.7228 Steel vs. Grade 3 Titanium

EN 1.7228 steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7228 steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12
21
Fatigue Strength, MPa 390
300
Impact Strength: V-Notched Charpy, J 22
62
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
39
Shear Strength, MPa 540
320
Tensile Strength: Ultimate (UTS), MPa 900
510
Tensile Strength: Yield (Proof), MPa 630
440

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 420
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 46
21
Thermal Expansion, µm/m-K 13
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.5
31
Embodied Energy, MJ/kg 20
510
Embodied Water, L/kg 51
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1050
910
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 32
32
Strength to Weight: Bending, points 26
32
Thermal Diffusivity, mm2/s 12
8.6
Thermal Shock Resistance, points 26
37

Alloy Composition

Carbon (C), % 0.46 to 0.54
0 to 0.080
Chromium (Cr), % 0.9 to 1.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 96.7 to 98
0 to 0.3
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0.15 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4