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Grade 1 Titanium vs. EN 1.4742 Stainless Steel

Grade 1 titanium belongs to the titanium alloys classification, while EN 1.4742 stainless steel belongs to the iron 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 grade 1 titanium and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
180
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
17
Fatigue Strength, MPa 170
180
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
77
Shear Strength, MPa 200
370
Tensile Strength: Ultimate (UTS), MPa 310
600
Tensile Strength: Yield (Proof), MPa 220
300

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
1000
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 20
19
Thermal Expansion, µm/m-K 8.8
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.0
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 31
2.2
Embodied Energy, MJ/kg 510
32
Embodied Water, L/kg 110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
84
Resilience: Unit (Modulus of Resilience), kJ/m3 230
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 8.2
5.1
Thermal Shock Resistance, points 24
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.080
0 to 0.12
Chromium (Cr), % 0
17 to 19
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
77.2 to 81.6
Manganese (Mn), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.7 to 1.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.095 to 100
0
Residuals, % 0 to 0.4
0