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AWS ERTi-1 vs. SAE-AISI 5140 Steel

AWS ERTi-1 belongs to the titanium alloys classification, while SAE-AISI 5140 steel belongs to the iron alloys. There are 29 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 AWS ERTi-1 and the bottom bar is SAE-AISI 5140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 24
12 to 29
Fatigue Strength, MPa 120
220 to 570
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
73
Tensile Strength: Ultimate (UTS), MPa 240
560 to 970
Tensile Strength: Yield (Proof), MPa 170
290 to 840

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
420
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
45
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.1
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.4
Embodied Energy, MJ/kg 510
19
Embodied Water, L/kg 110
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
76 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
220 to 1880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 15
20 to 34
Strength to Weight: Bending, points 19
19 to 28
Thermal Diffusivity, mm2/s 8.7
12
Thermal Shock Resistance, points 19
16 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 0.9
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
97.3 to 98.1
Manganese (Mn), % 0
0.7 to 0.9
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 99.773 to 99.97
0