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AWS ERTi-2 vs. S20161 Stainless Steel

AWS ERTi-2 belongs to the titanium alloys classification, while S20161 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-2 and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
46
Fatigue Strength, MPa 190
360
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340
980
Tensile Strength: Yield (Proof), MPa 280
390

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
870
Melting Completion (Liquidus), °C 1670
1380
Melting Onset (Solidus), °C 1620
1330
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
7.5
Embodied Carbon, kg CO2/kg material 31
2.7
Embodied Energy, MJ/kg 510
39
Embodied Water, L/kg 110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
360
Resilience: Unit (Modulus of Resilience), kJ/m3 360
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 24
29
Thermal Diffusivity, mm2/s 8.7
4.0
Thermal Shock Resistance, points 27
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 0
15 to 18
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
65.6 to 73.9
Manganese (Mn), % 0
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0 to 0.015
0.080 to 0.2
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 99.667 to 99.92
0