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EN 1.4971 Stainless Steel vs. Grade 24 Titanium

EN 1.4971 stainless steel belongs to the iron alloys classification, while grade 24 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
11
Fatigue Strength, MPa 270
550
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
40
Shear Strength, MPa 530
610
Tensile Strength: Ultimate (UTS), MPa 800
1010
Tensile Strength: Yield (Proof), MPa 340
940

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 450
560
Thermal Conductivity, W/m-K 13
7.1
Thermal Expansion, µm/m-K 15
9.6

Otherwise Unclassified Properties

Density, g/cm3 8.4
4.5
Embodied Carbon, kg CO2/kg material 7.6
43
Embodied Energy, MJ/kg 110
710
Embodied Water, L/kg 300
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
4160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 26
63
Strength to Weight: Bending, points 23
50
Thermal Diffusivity, mm2/s 3.4
2.9
Thermal Shock Resistance, points 19
72

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.080 to 0.16
0 to 0.080
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 24.3 to 37.1
0 to 0.4
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
87.5 to 91
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4