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EN 1.4109 Stainless Steel vs. AWS ERTi-2

EN 1.4109 stainless steel belongs to the iron alloys classification, while AWS ERTi-2 belongs to the titanium 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 EN 1.4109 stainless steel and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 19
20
Fatigue Strength, MPa 270
190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 770
340
Tensile Strength: Yield (Proof), MPa 420
280

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 820
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1400
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 30
21
Thermal Expansion, µm/m-K 10
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.2
31
Embodied Energy, MJ/kg 30
510
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
64
Resilience: Unit (Modulus of Resilience), kJ/m3 460
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
24
Thermal Diffusivity, mm2/s 8.1
8.7
Thermal Shock Resistance, points 28
27

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.030
Chromium (Cr), % 14 to 16
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 80.7 to 85
0 to 0.12
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.4 to 0.8
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
99.667 to 99.92