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EN 1.4971 Stainless Steel vs. Titanium 6-2-4-2

EN 1.4971 stainless steel belongs to the iron alloys classification, while titanium 6-2-4-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 titanium 6-2-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
8.6
Fatigue Strength, MPa 270
490
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
40
Shear Strength, MPa 530
560
Tensile Strength: Ultimate (UTS), MPa 800
950
Tensile Strength: Yield (Proof), MPa 340
880

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
300
Melting Completion (Liquidus), °C 1460
1590
Melting Onset (Solidus), °C 1410
1540
Specific Heat Capacity, J/kg-K 450
540
Thermal Conductivity, W/m-K 13
6.9
Thermal Expansion, µm/m-K 15
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
42
Density, g/cm3 8.4
4.6
Embodied Carbon, kg CO2/kg material 7.6
32
Embodied Energy, MJ/kg 110
520
Embodied Water, L/kg 300
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
79
Resilience: Unit (Modulus of Resilience), kJ/m3 280
3640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
34
Strength to Weight: Axial, points 26
57
Strength to Weight: Bending, points 23
46
Thermal Diffusivity, mm2/s 3.4
2.8
Thermal Shock Resistance, points 19
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.080 to 0.16
0 to 0.050
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 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
1.8 to 2.2
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 0.15
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.060 to 0.12
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.8 to 2.2
Titanium (Ti), % 0
83.7 to 87.2
Tungsten (W), % 2.0 to 3.0
0
Zirconium (Zr), % 0
3.6 to 4.4
Residuals, % 0
0 to 0.4