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EN 1.4588 Stainless Steel vs. Grade 3 Titanium

EN 1.4588 stainless steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 31 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 EN 1.4588 stainless steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
21
Fatigue Strength, MPa 190
300
Impact Strength: V-Notched Charpy, J 67
62
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
39
Tensile Strength: Ultimate (UTS), MPa 540
510
Tensile Strength: Yield (Proof), MPa 240
440

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1410
1610
Specific Heat Capacity, J/kg-K 460
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 17
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
37
Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 6.2
31
Embodied Energy, MJ/kg 84
510
Embodied Water, L/kg 200
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
910
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 18
32
Strength to Weight: Bending, points 18
32
Thermal Diffusivity, mm2/s 4.0
8.6
Thermal Shock Resistance, points 11
37

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 41.2 to 50.4
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0.1 to 0.25
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4