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EN 1.4123 Stainless Steel vs. Grade 12 Titanium

EN 1.4123 stainless steel belongs to the iron alloys classification, while grade 12 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 1.4123 stainless steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
170
Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
39
Tensile Strength: Ultimate (UTS), MPa 720 to 810
530

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 840
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 23
21
Thermal Expansion, µm/m-K 10
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 4.2
31
Embodied Energy, MJ/kg 62
500
Embodied Water, L/kg 120
110

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 26 to 29
32
Strength to Weight: Bending, points 23 to 25
32
Thermal Diffusivity, mm2/s 6.3
8.5
Thermal Shock Resistance, points 26 to 29
37

Alloy Composition

Carbon (C), % 0.35 to 0.5
0 to 0.080
Chromium (Cr), % 14 to 16.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 76.7 to 84.6
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.0 to 2.5
0.2 to 0.4
Nickel (Ni), % 0 to 0.5
0.6 to 0.9
Nitrogen (N), % 0.1 to 0.3
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
97.6 to 99.2
Vanadium (V), % 0 to 1.5
0
Residuals, % 0
0 to 0.4