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ASTM A387 Grade 5 Steel vs. AWS ERTi-5

ASTM A387 grade 5 steel belongs to the iron alloys classification, while AWS ERTi-5 belongs to the titanium 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 A387 grade 5 steel and the bottom bar is AWS ERTi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20 to 21
10
Fatigue Strength, MPa 160 to 240
470
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 74
40
Tensile Strength: Ultimate (UTS), MPa 500 to 600
900
Tensile Strength: Yield (Proof), MPa 230 to 350
830

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 510
340
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1420
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 40
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
36
Density, g/cm3 7.8
4.4
Embodied Carbon, kg CO2/kg material 1.7
38
Embodied Energy, MJ/kg 23
610
Embodied Water, L/kg 69
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
87
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
3250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 18 to 21
56
Strength to Weight: Bending, points 18 to 20
46
Thermal Diffusivity, mm2/s 11
2.9
Thermal Shock Resistance, points 14 to 17
63

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 4.0 to 6.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 92.1 to 95.3
0 to 0.22
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.45 to 0.65
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
88.2 to 90.9
Vanadium (V), % 0
3.5 to 4.5