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EN 1.4378 Stainless Steel vs. Grade 24 Titanium

EN 1.4378 stainless steel belongs to the iron alloys classification, while grade 24 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 14 to 34
11
Fatigue Strength, MPa 340 to 550
550
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 510 to 680
610
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
1010
Tensile Strength: Yield (Proof), MPa 430 to 970
940

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 910
340
Melting Completion (Liquidus), °C 1390
1610
Melting Onset (Solidus), °C 1350
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Expansion, µm/m-K 17
9.6

Otherwise Unclassified Properties

Density, g/cm3 7.6
4.5
Embodied Carbon, kg CO2/kg material 2.7
43
Embodied Energy, MJ/kg 39
710
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
4160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28 to 41
63
Strength to Weight: Bending, points 24 to 31
50
Thermal Shock Resistance, points 16 to 23
72

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 61.2 to 69
0 to 0.4
Manganese (Mn), % 11.5 to 14.5
0
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4