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EN 1.8879 Steel vs. Grade 12 Titanium

EN 1.8879 steel belongs to the iron alloys classification, while grade 12 titanium belongs to the titanium alloys. There are 31 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 EN 1.8879 steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 16
21
Fatigue Strength, MPa 460
280
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
39
Shear Strength, MPa 510
330
Tensile Strength: Ultimate (UTS), MPa 830
530
Tensile Strength: Yield (Proof), MPa 710
410

Thermal Properties

Latent Heat of Fusion, J/g 260
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 40
21
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.9
31
Embodied Energy, MJ/kg 26
500
Embodied Water, L/kg 54
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1320
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 29
32
Strength to Weight: Bending, points 25
32
Thermal Diffusivity, mm2/s 11
8.5
Thermal Shock Resistance, points 24
37

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 0 to 1.5
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 91.9 to 100
0 to 0.3
Manganese (Mn), % 0 to 1.7
0
Molybdenum (Mo), % 0 to 0.7
0.2 to 0.4
Nickel (Ni), % 0 to 2.5
0.6 to 0.9
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.050
97.6 to 99.2
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.4