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ASTM B817 Type II vs. Grade TDSiCrV Steel

ASTM B817 type II belongs to the titanium alloys classification, while grade TDSiCrV steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.32
0.29
Reduction in Area, % 4.0 to 13
48
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 900 to 960
2100

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 350
420
Melting Completion (Liquidus), °C 1580
1440
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.9
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.3
Density, g/cm3 4.6
7.7
Embodied Carbon, kg CO2/kg material 40
1.9
Embodied Energy, MJ/kg 650
26
Embodied Water, L/kg 220
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 55 to 58
75
Strength to Weight: Bending, points 45 to 47
47
Thermal Shock Resistance, points 62 to 66
63

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0.5 to 0.7
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
0.5 to 1.0
Copper (Cu), % 0.35 to 1.0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
96.1 to 97.8
Manganese (Mn), % 0
0.4 to 0.9
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
1.2 to 1.7
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0.1 to 0.25
Residuals, % 0 to 0.4
0