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EN 1.4935 Stainless Steel vs. Grade 18 Titanium

EN 1.4935 stainless steel belongs to the iron alloys classification, while grade 18 titanium belongs to the titanium alloys. There are 29 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 1.4935 stainless steel and the bottom bar is grade 18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 16 to 18
11 to 17
Fatigue Strength, MPa 350 to 400
330 to 480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Shear Strength, MPa 480 to 540
420 to 590
Tensile Strength: Ultimate (UTS), MPa 780 to 880
690 to 980
Tensile Strength: Yield (Proof), MPa 570 to 670
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 740
330
Melting Completion (Liquidus), °C 1460
1640
Melting Onset (Solidus), °C 1420
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 24
8.3
Thermal Expansion, µm/m-K 11
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.9
41
Embodied Energy, MJ/kg 42
670
Embodied Water, L/kg 100
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
1380 to 3110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28 to 31
43 to 61
Strength to Weight: Bending, points 24 to 26
39 to 49
Thermal Diffusivity, mm2/s 6.5
3.4
Thermal Shock Resistance, points 27 to 30
47 to 67

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0.17 to 0.24
0 to 0.080
Chromium (Cr), % 11 to 12.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 83 to 86.7
0 to 0.25
Manganese (Mn), % 0.3 to 0.8
0
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
92.5 to 95.5
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
2.0 to 3.0
Residuals, % 0
0 to 0.4

Comparable Variants