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EN 1.7375 Steel vs. Grade 37 Titanium

EN 1.7375 steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 30 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 1.7375 steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
22
Fatigue Strength, MPa 270
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
40
Shear Strength, MPa 380
240
Tensile Strength: Ultimate (UTS), MPa 620
390
Tensile Strength: Yield (Proof), MPa 400
250

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 460
310
Melting Completion (Liquidus), °C 1470
1650
Melting Onset (Solidus), °C 1430
1600
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 39
21
Thermal Expansion, µm/m-K 13
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.8
31
Embodied Energy, MJ/kg 23
500
Embodied Water, L/kg 59
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
76
Resilience: Unit (Modulus of Resilience), kJ/m3 420
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 11
8.4
Thermal Shock Resistance, points 18
29

Alloy Composition

Aluminum (Al), % 0.010 to 0.040
1.0 to 2.0
Carbon (C), % 0.1 to 0.15
0 to 0.080
Chromium (Cr), % 2.0 to 2.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 94.5 to 96.7
0 to 0.3
Manganese (Mn), % 0.3 to 0.8
0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0 to 0.012
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
96.9 to 99
Residuals, % 0
0 to 0.4