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EN 1.4521 Stainless Steel vs. Grade 13 Titanium

EN 1.4521 stainless steel belongs to the iron alloys classification, while grade 13 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 1.4521 stainless steel and the bottom bar is grade 13 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 23
27
Fatigue Strength, MPa 230
140
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Shear Strength, MPa 330
200
Tensile Strength: Ultimate (UTS), MPa 520
310
Tensile Strength: Yield (Proof), MPa 340
190

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 930
320
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1410
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 23
22
Thermal Expansion, µm/m-K 10
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.8
32
Embodied Energy, MJ/kg 39
520
Embodied Water, L/kg 130
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
73
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 6.2
8.9
Thermal Shock Resistance, points 18
24

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.080
Chromium (Cr), % 17 to 20
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 74.6 to 81.1
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.8
98.5 to 99.56
Residuals, % 0
0 to 0.4