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AWS ERTi-5 vs. EN 1.4439 Stainless Steel

AWS ERTi-5 belongs to the titanium alloys classification, while EN 1.4439 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 10
40
Fatigue Strength, MPa 470
270
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
79
Tensile Strength: Ultimate (UTS), MPa 900
680
Tensile Strength: Yield (Proof), MPa 830
310

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 340
980
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
14
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
22
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
4.5
Embodied Energy, MJ/kg 610
61
Embodied Water, L/kg 200
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
220
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 56
24
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 2.9
3.8
Thermal Shock Resistance, points 63
15

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
58.7 to 66.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
12.5 to 14.5
Nitrogen (N), % 0 to 0.030
0.12 to 0.22
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0