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Grade 33 Titanium vs. EN 1.4525 Stainless Steel

Grade 33 titanium belongs to the titanium alloys classification, while EN 1.4525 stainless steel belongs to the iron alloys. There are 29 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 grade 33 titanium and the bottom bar is EN 1.4525 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
5.6 to 13
Fatigue Strength, MPa 250
480 to 540
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Tensile Strength: Ultimate (UTS), MPa 390
1030 to 1250
Tensile Strength: Yield (Proof), MPa 350
840 to 1120

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
860
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1390
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
18
Thermal Expansion, µm/m-K 8.7
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 55
13
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
2.8
Embodied Energy, MJ/kg 530
39
Embodied Water, L/kg 200
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
68 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 590
1820 to 3230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
36 to 45
Strength to Weight: Bending, points 26
29 to 33
Thermal Diffusivity, mm2/s 8.7
4.7
Thermal Shock Resistance, points 30
34 to 41

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 0.1 to 0.2
15 to 17
Copper (Cu), % 0
2.5 to 4.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
70.4 to 79
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 0.35 to 0.55
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Phosphorus (P), % 0
0 to 0.035
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 98.1 to 99.52
0
Residuals, % 0 to 0.4
0