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AWS ERTi-5 vs. EN 1.4981 Stainless Steel

AWS ERTi-5 belongs to the titanium alloys classification, while EN 1.4981 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-5 and the bottom bar is EN 1.4981 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 10
39
Fatigue Strength, MPa 470
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 900
610
Tensile Strength: Yield (Proof), MPa 830
240

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 340
940
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
16
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
4.8
Embodied Energy, MJ/kg 610
67
Embodied Water, L/kg 200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
190
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 56
21
Strength to Weight: Bending, points 46
20
Thermal Diffusivity, mm2/s 2.9
4.3
Thermal Shock Resistance, points 63
14

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
59.6 to 66.7
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
1.6 to 2.0
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0