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EN 1.4821 Stainless Steel vs. Grade 5 Titanium

EN 1.4821 stainless steel belongs to the iron alloys classification, while grade 5 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4821 stainless steel and the bottom bar is grade 5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 18
8.6 to 11
Fatigue Strength, MPa 280
530 to 630
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
40
Shear Strength, MPa 450
600 to 710
Tensile Strength: Ultimate (UTS), MPa 730
1000 to 1190
Tensile Strength: Yield (Proof), MPa 450
910 to 1110

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1650
Specific Heat Capacity, J/kg-K 490
560
Thermal Conductivity, W/m-K 17
6.8
Thermal Expansion, µm/m-K 12
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 15
36
Density, g/cm3 7.6
4.4
Embodied Carbon, kg CO2/kg material 2.9
38
Embodied Energy, MJ/kg 41
610
Embodied Water, L/kg 160
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 500
3980 to 5880
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
35
Strength to Weight: Axial, points 26
62 to 75
Strength to Weight: Bending, points 23
50 to 56
Thermal Diffusivity, mm2/s 4.6
2.7
Thermal Shock Resistance, points 21
76 to 91

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.1 to 0.2
0 to 0.080
Chromium (Cr), % 24.5 to 26.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 64.2 to 71.1
0 to 0.4
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 3.5 to 5.5
0
Nitrogen (N), % 0 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.8 to 1.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
87.4 to 91
Vanadium (V), % 0
3.5 to 4.5
Yttrium (Y), % 0
0 to 0.0050
Residuals, % 0
0 to 0.4