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EN 1.4669 Stainless Steel vs. Grade 4 Titanium

EN 1.4669 stainless steel belongs to the iron alloys classification, while grade 4 titanium belongs to the titanium alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4669 stainless steel and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
200
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 28
17
Fatigue Strength, MPa 330
340
Impact Strength: V-Notched Charpy, J 110
23
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 78
41
Shear Strength, MPa 500
390
Tensile Strength: Ultimate (UTS), MPa 780
640
Tensile Strength: Yield (Proof), MPa 450
530

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 1030
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1370
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.6
31
Embodied Energy, MJ/kg 38
500
Embodied Water, L/kg 160
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100
Resilience: Unit (Modulus of Resilience), kJ/m3 510
1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
40
Strength to Weight: Bending, points 24
37
Thermal Diffusivity, mm2/s 4.0
7.6
Thermal Shock Resistance, points 21
46

Alloy Composition

Carbon (C), % 0 to 0.045
0 to 0.080
Chromium (Cr), % 21.5 to 24
0
Copper (Cu), % 1.6 to 3.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 65.2 to 74.8
0 to 0.5
Manganese (Mn), % 1.0 to 3.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
0
Nitrogen (N), % 0.12 to 0.2
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.6 to 100
Residuals, % 0
0 to 0.4