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EN 1.4931 Steel vs. Grade 1 Titanium

EN 1.4931 steel belongs to the iron alloys classification, while grade 1 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4931 steel and the bottom bar is grade 1 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
120
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17
28
Fatigue Strength, MPa 410
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
39
Tensile Strength: Ultimate (UTS), MPa 810
310
Tensile Strength: Yield (Proof), MPa 620
220

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 600
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 24
20
Thermal Expansion, µm/m-K 14
8.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 11
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.9
31
Embodied Energy, MJ/kg 42
510
Embodied Water, L/kg 100
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
79
Resilience: Unit (Modulus of Resilience), kJ/m3 970
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 6.5
8.2
Thermal Shock Resistance, points 22
24

Alloy Composition

Carbon (C), % 0.2 to 0.26
0 to 0.080
Chromium (Cr), % 11.3 to 12.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 83.2 to 86.8
0 to 0.2
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 1.0 to 1.2
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
99.095 to 100
Tungsten (W), % 0 to 0.5
0
Vanadium (V), % 0.25 to 0.35
0
Residuals, % 0
0 to 0.4