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ASTM B817 Type II vs. EN 1.7380 Steel

ASTM B817 type II belongs to the titanium alloys classification, while EN 1.7380 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is EN 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 3.0 to 13
19 to 20
Fatigue Strength, MPa 390 to 530
200 to 230
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 900 to 960
540 to 550
Tensile Strength: Yield (Proof), MPa 780 to 900
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 350
460
Melting Completion (Liquidus), °C 1580
1470
Melting Onset (Solidus), °C 1530
1430
Specific Heat Capacity, J/kg-K 550
470
Thermal Expansion, µm/m-K 9.9
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.8
Density, g/cm3 4.6
7.9
Embodied Carbon, kg CO2/kg material 40
1.8
Embodied Energy, MJ/kg 650
23
Embodied Water, L/kg 220
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
230 to 280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
19 to 20
Strength to Weight: Bending, points 45 to 47
19
Thermal Shock Resistance, points 62 to 66
15 to 16

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.080 to 0.14
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0.35 to 1.0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
94.6 to 96.6
Manganese (Mn), % 0
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0 to 0.040
0 to 0.012
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0