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ASTM B817 Type I vs. EN 1.7365 Steel

ASTM B817 type I belongs to the titanium alloys classification, while EN 1.7365 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 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.0 to 13
18
Fatigue Strength, MPa 360 to 520
320
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 770 to 960
700
Tensile Strength: Yield (Proof), MPa 700 to 860
470

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 340
510
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
40
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.4
Density, g/cm3 4.4
7.8
Embodied Carbon, kg CO2/kg material 38
1.8
Embodied Energy, MJ/kg 610
24
Embodied Water, L/kg 200
70

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
580
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 48 to 60
25
Strength to Weight: Bending, points 42 to 49
22
Thermal Diffusivity, mm2/s 2.9
11
Thermal Shock Resistance, points 54 to 68
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
0.12 to 0.19
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
91.2 to 94.9
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
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 to 0.8
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0 to 0.050
Residuals, % 0 to 0.4
0