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ASTM B817 Type I vs. EN 1.5450 Steel

ASTM B817 type I belongs to the titanium alloys classification, while EN 1.5450 steel belongs to the iron alloys. There are 29 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 ASTM B817 type I and the bottom bar is EN 1.5450 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.0 to 13
19
Fatigue Strength, MPa 360 to 520
310
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 770 to 960
620
Tensile Strength: Yield (Proof), MPa 700 to 860
460

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
410
Melting Completion (Liquidus), °C 1600
1470
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
49
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.4
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
1.5
Embodied Energy, MJ/kg 610
20
Embodied Water, L/kg 200
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 48 to 60
22
Strength to Weight: Bending, points 42 to 49
20
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 54 to 68
18

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0 to 0.060
Boron (B), % 0
0.0020 to 0.0060
Carbon (C), % 0 to 0.1
0.060 to 0.1
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
97.6 to 98.8
Manganese (Mn), % 0
0.6 to 0.8
Molybdenum (Mo), % 0
0.4 to 0.5
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0.1 to 0.35
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 87 to 91
0 to 0.060
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0