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EN 1.4749 Stainless Steel vs. Grade 1 Titanium

EN 1.4749 stainless steel belongs to the iron alloys classification, while grade 1 titanium belongs to the titanium alloys. There are 31 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 1.4749 stainless steel and the bottom bar is grade 1 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
120
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 16
28
Fatigue Strength, MPa 190
170
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
39
Shear Strength, MPa 370
200
Tensile Strength: Ultimate (UTS), MPa 600
310
Tensile Strength: Yield (Proof), MPa 320
220

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 490
540
Thermal Conductivity, W/m-K 17
20
Thermal Expansion, µm/m-K 9.6
8.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.6
4.5
Embodied Carbon, kg CO2/kg material 2.5
31
Embodied Energy, MJ/kg 36
510
Embodied Water, L/kg 160
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
79
Resilience: Unit (Modulus of Resilience), kJ/m3 250
230
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
35
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 4.6
8.2
Thermal Shock Resistance, points 22
24

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.080
Chromium (Cr), % 26 to 29
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 68.5 to 73.7
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Nitrogen (N), % 0.15 to 0.25
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
99.095 to 100
Residuals, % 0
0 to 0.4