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AWS ERTi-1 vs. EN 1.4109 Stainless Steel

AWS ERTi-1 belongs to the titanium alloys classification, while EN 1.4109 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-1 and the bottom bar is EN 1.4109 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 24
19
Fatigue Strength, MPa 120
270
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Tensile Strength: Ultimate (UTS), MPa 240
770
Tensile Strength: Yield (Proof), MPa 170
420

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 15
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 8.7
8.1
Thermal Shock Resistance, points 19
28

Alloy Composition

Carbon (C), % 0 to 0.030
0.6 to 0.75
Chromium (Cr), % 0
14 to 16
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
80.7 to 85
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.773 to 99.97
0