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ASTM A285 Carbon Steel vs. Grade 3 Titanium

ASTM A285 carbon steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A285 carbon steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 30 to 34
21
Fatigue Strength, MPa 150 to 180
300
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
39
Shear Strength, MPa 250 to 290
320
Tensile Strength: Ultimate (UTS), MPa 380 to 450
510
Tensile Strength: Yield (Proof), MPa 190 to 230
440

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 400
320
Melting Completion (Liquidus), °C 1470
1660
Melting Onset (Solidus), °C 1420 to 1430
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 53
21
Thermal Expansion, µm/m-K 12
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 1.4
31
Embodied Energy, MJ/kg 18
510
Embodied Water, L/kg 46
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
910
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 13 to 16
32
Strength to Weight: Bending, points 15 to 17
32
Thermal Diffusivity, mm2/s 14
8.6
Thermal Shock Resistance, points 12 to 14
37