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EN 1.6982 Stainless Steel vs. Grade 2 Titanium

EN 1.6982 stainless steel belongs to the iron alloys classification, while grade 2 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 1.6982 stainless steel and the bottom bar is grade 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 17
23
Fatigue Strength, MPa 350
250
Impact Strength: V-Notched Charpy, J 56
160
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
38
Tensile Strength: Ultimate (UTS), MPa 800
420
Tensile Strength: Yield (Proof), MPa 570
360

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 770
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 25
22
Thermal Expansion, µm/m-K 10
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.4
31
Embodied Energy, MJ/kg 33
510
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
92
Resilience: Unit (Modulus of Resilience), kJ/m3 820
600
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 25
28
Thermal Diffusivity, mm2/s 6.6
8.9
Thermal Shock Resistance, points 29
32

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 12 to 13.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 78.7 to 84.5
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.7
0
Nickel (Ni), % 3.5 to 5.0
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4