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ASTM B817 Type I vs. EN 1.6554 Steel

ASTM B817 type I belongs to the titanium alloys classification, while EN 1.6554 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1.6554 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.0 to 13
17 to 21
Fatigue Strength, MPa 360 to 520
380 to 520
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 770 to 960
780 to 930
Tensile Strength: Yield (Proof), MPa 700 to 860
550 to 790

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
420
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
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.4
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
1.7
Embodied Energy, MJ/kg 610
22
Embodied Water, L/kg 200
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
810 to 1650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 48 to 60
27 to 33
Strength to Weight: Bending, points 42 to 49
24 to 27
Thermal Diffusivity, mm2/s 2.9
11
Thermal Shock Resistance, points 54 to 68
23 to 27

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
0.23 to 0.28
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
94.6 to 97.3
Manganese (Mn), % 0
0.6 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
1.0 to 2.0
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.6
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 0.030
Residuals, % 0 to 0.4
0

Comparable Variants