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EN 1.4911 Stainless Steel vs. Grade 29 Titanium

EN 1.4911 stainless steel belongs to the iron alloys classification, while grade 29 titanium belongs to the titanium alloys. There are 30 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 1.4911 stainless steel and the bottom bar is grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 11
6.8 to 11
Fatigue Strength, MPa 530
460 to 510
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Shear Strength, MPa 640
550 to 560
Tensile Strength: Ultimate (UTS), MPa 1070
930 to 940
Tensile Strength: Yield (Proof), MPa 970
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 700
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 20
7.3
Thermal Expansion, µm/m-K 11
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.4
39
Embodied Energy, MJ/kg 49
640
Embodied Water, L/kg 130
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
3420 to 3540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 38
58 to 59
Strength to Weight: Bending, points 30
47 to 48
Thermal Diffusivity, mm2/s 5.4
2.9
Thermal Shock Resistance, points 37
68 to 69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0 to 0.080
Chromium (Cr), % 9.8 to 11.2
0
Cobalt (Co), % 5.0 to 7.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 75.7 to 83.8
0 to 0.25
Manganese (Mn), % 0.3 to 1.3
0
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 0.2 to 1.2
0
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.025
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0.1 to 0.8
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
88 to 90.9
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
3.5 to 4.5
Residuals, % 0
0 to 0.4