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EN 1.3542 Stainless Steel vs. Grade 21 Titanium

EN 1.3542 stainless steel belongs to the iron alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.3542 stainless steel and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
51
Tensile Strength: Ultimate (UTS), MPa 720
890 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 770
310
Melting Completion (Liquidus), °C 1440
1740
Melting Onset (Solidus), °C 1390
1690
Specific Heat Capacity, J/kg-K 480
500
Thermal Conductivity, W/m-K 29
7.5
Thermal Expansion, µm/m-K 10
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
60
Density, g/cm3 7.7
5.4
Embodied Carbon, kg CO2/kg material 2.0
32
Embodied Energy, MJ/kg 29
490
Embodied Water, L/kg 100
180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 26
46 to 69
Strength to Weight: Bending, points 23
38 to 50
Thermal Diffusivity, mm2/s 7.9
2.8
Thermal Shock Resistance, points 26
66 to 100

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0.6 to 0.7
0 to 0.050
Chromium (Cr), % 12.5 to 14.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 82.7 to 87.5
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
14 to 16
Niobium (Nb), % 0
2.2 to 3.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.17
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.15 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
76 to 81.2
Residuals, % 0
0 to 0.4