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EN 1.3975 Stainless Steel vs. Titanium 15-3-3-3

EN 1.3975 stainless steel belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 24 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 1.3975 stainless steel and the bottom bar is titanium 15-3-3-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 27
5.7 to 8.0
Fatigue Strength, MPa 230
610 to 710
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
39
Tensile Strength: Ultimate (UTS), MPa 660
1120 to 1390
Tensile Strength: Yield (Proof), MPa 320
1100 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 340
390
Maximum Temperature: Mechanical, °C 910
430
Melting Completion (Liquidus), °C 1360
1620
Melting Onset (Solidus), °C 1320
1560
Specific Heat Capacity, J/kg-K 500
520
Thermal Expansion, µm/m-K 16
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
40
Density, g/cm3 7.5
4.8
Embodied Carbon, kg CO2/kg material 3.3
59
Embodied Energy, MJ/kg 47
950
Embodied Water, L/kg 150
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
78 to 89
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 26
32
Strength to Weight: Axial, points 24
64 to 80
Strength to Weight: Bending, points 22
50 to 57
Thermal Shock Resistance, points 15
79 to 98

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 16 to 18
2.5 to 3.5
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 58.2 to 65.4
0 to 0.25
Manganese (Mn), % 7.0 to 9.0
0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 3.5 to 4.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
2.5 to 3.5
Titanium (Ti), % 0
72.6 to 78.5
Vanadium (V), % 0
14 to 16
Residuals, % 0
0 to 0.4