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EN 1.4938 Stainless Steel vs. Grade C-6 Titanium

EN 1.4938 stainless steel belongs to the iron alloys classification, while grade C-6 titanium belongs to the titanium alloys. There are 29 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 1.4938 stainless steel and the bottom bar is grade C-6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 16 to 17
9.0
Fatigue Strength, MPa 390 to 520
460
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
39
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
890
Tensile Strength: Yield (Proof), MPa 640 to 870
830

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 750
310
Melting Completion (Liquidus), °C 1460
1580
Melting Onset (Solidus), °C 1420
1530
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 30
7.8
Thermal Expansion, µm/m-K 11
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.3
30
Embodied Energy, MJ/kg 47
480
Embodied Water, L/kg 110
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
78
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
3300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 31 to 37
55
Strength to Weight: Bending, points 26 to 29
46
Thermal Diffusivity, mm2/s 8.1
3.2
Thermal Shock Resistance, points 30 to 35
63

Alloy Composition

Aluminum (Al), % 0
4.0 to 6.0
Carbon (C), % 0.080 to 0.15
0 to 0.1
Chromium (Cr), % 11 to 12.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 80.5 to 84.8
0 to 0.5
Manganese (Mn), % 0.4 to 0.9
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0 to 0.050
Nitrogen (N), % 0.020 to 0.040
0
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0
89.7 to 94
Vanadium (V), % 0.25 to 0.4
0
Residuals, % 0
0 to 0.4