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EN 1.4303 Stainless Steel vs. Grade 32 Titanium

EN 1.4303 stainless steel belongs to the iron alloys classification, while grade 32 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is grade 32 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 13 to 49
11
Fatigue Strength, MPa 220 to 320
390
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 420 to 540
460
Tensile Strength: Ultimate (UTS), MPa 590 to 900
770
Tensile Strength: Yield (Proof), MPa 230 to 560
670

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 940
310
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 15
7.5
Thermal Expansion, µm/m-K 16
8.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
38
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.2
32
Embodied Energy, MJ/kg 46
530
Embodied Water, L/kg 150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
83
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
2100
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21 to 32
47
Strength to Weight: Bending, points 20 to 26
41
Thermal Diffusivity, mm2/s 4.0
3.0
Thermal Shock Resistance, points 13 to 20
63

Alloy Composition

Aluminum (Al), % 0
4.5 to 5.5
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 64.8 to 72
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
0.6 to 1.2
Nickel (Ni), % 11 to 13
0
Nitrogen (N), % 0 to 0.1
0 to 0.030
Oxygen (O), % 0
0 to 0.11
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.060 to 0.14
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0.6 to 1.4
Titanium (Ti), % 0
88.1 to 93
Vanadium (V), % 0
0.6 to 1.4
Zirconium (Zr), % 0
0.6 to 1.4
Residuals, % 0
0 to 0.4