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ASTM A285 Carbon Steel vs. Grade 20 Titanium

ASTM A285 carbon steel belongs to the iron alloys classification, while grade 20 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 20 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 30 to 34
5.7 to 17
Fatigue Strength, MPa 150 to 180
550 to 630
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
47
Shear Strength, MPa 250 to 290
560 to 740
Tensile Strength: Ultimate (UTS), MPa 380 to 450
900 to 1270
Tensile Strength: Yield (Proof), MPa 190 to 230
850 to 1190

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
370
Melting Completion (Liquidus), °C 1470
1660
Melting Onset (Solidus), °C 1420 to 1430
1600
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Density, g/cm3 7.9
5.0
Embodied Carbon, kg CO2/kg material 1.4
52
Embodied Energy, MJ/kg 18
860
Embodied Water, L/kg 46
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
2940 to 5760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
33
Strength to Weight: Axial, points 13 to 16
50 to 70
Strength to Weight: Bending, points 15 to 17
41 to 52
Thermal Shock Resistance, points 12 to 14
55 to 77

Comparable Variants