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ASTM B817 Type II vs. EN 1.7767 Steel

ASTM B817 type II belongs to the titanium alloys classification, while EN 1.7767 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 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 3.0 to 13
20
Fatigue Strength, MPa 390 to 530
320 to 340
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
74
Tensile Strength: Ultimate (UTS), MPa 900 to 960
670 to 690
Tensile Strength: Yield (Proof), MPa 780 to 900
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 350
480
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
4.5
Density, g/cm3 4.6
7.9
Embodied Carbon, kg CO2/kg material 40
2.4
Embodied Energy, MJ/kg 650
33
Embodied Water, L/kg 220
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
570 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 55 to 58
24
Strength to Weight: Bending, points 45 to 47
22
Thermal Shock Resistance, points 62 to 66
19 to 20

Alloy Composition

Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.1 to 0.15
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0.35 to 1.0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
93.8 to 95.8
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0 to 0.040
0 to 0.012
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.15
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0 to 0.030
Vanadium (V), % 5.0 to 6.0
0.2 to 0.3
Residuals, % 0 to 0.4
0