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EN 1.4923 Stainless Steel vs. Grade 31 Titanium

EN 1.4923 stainless steel belongs to the iron alloys classification, while grade 31 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4923 stainless steel and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 12 to 21
20
Fatigue Strength, MPa 300 to 440
300
Poisson's Ratio 0.28
0.32
Reduction in Area, % 40 to 46
34
Shear Modulus, GPa 76
41
Shear Strength, MPa 540 to 590
320
Tensile Strength: Ultimate (UTS), MPa 870 to 980
510
Tensile Strength: Yield (Proof), MPa 470 to 780
450

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 740
320
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1410
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 24
21
Thermal Expansion, µm/m-K 11
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
6.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.9
36
Embodied Energy, MJ/kg 41
600
Embodied Water, L/kg 100
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
99
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 1580
940
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 31 to 35
32
Strength to Weight: Bending, points 26 to 28
32
Thermal Diffusivity, mm2/s 6.5
8.5
Thermal Shock Resistance, points 30 to 34
39

Alloy Composition


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Carbon (C), % 0.18 to 0.24
0 to 0.080
Chromium (Cr), % 11 to 12.5
0
Cobalt (Co), % 0
0.2 to 0.8
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 83.5 to 87.1
0 to 0.3
Manganese (Mn), % 0.4 to 0.9
0
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
97.9 to 99.76
Vanadium (V), % 0.25 to 0.35
0
Residuals, % 0
0 to 0.4