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ASTM B817 Type I vs. EN 1.5637 Steel

ASTM B817 type I belongs to the titanium alloys classification, while EN 1.5637 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 1.5637 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.0 to 13
24
Fatigue Strength, MPa 360 to 520
280
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 770 to 960
560
Tensile Strength: Yield (Proof), MPa 700 to 860
390

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
410
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
52
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
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.0
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
1.8
Embodied Energy, MJ/kg 610
24
Embodied Water, L/kg 200
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 48 to 60
20
Strength to Weight: Bending, points 42 to 49
19
Thermal Diffusivity, mm2/s 2.9
14
Thermal Shock Resistance, points 54 to 68
16

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
0 to 0.15
Chlorine (Cl), % 0 to 0.2
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
94.9 to 96.5
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0
3.3 to 3.8
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.35
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0 to 0.050
Residuals, % 0 to 0.4
0