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AWS ERTi-1 vs. N08801 Stainless Steel

AWS ERTi-1 belongs to the titanium alloys classification, while N08801 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 24
34
Fatigue Strength, MPa 120
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 240
860
Tensile Strength: Yield (Proof), MPa 170
190

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1090
Melting Completion (Liquidus), °C 1670
1390
Melting Onset (Solidus), °C 1620
1360
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
30
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 31
5.5
Embodied Energy, MJ/kg 510
79
Embodied Water, L/kg 110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
220
Resilience: Unit (Modulus of Resilience), kJ/m3 140
92
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 15
30
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 8.7
3.3
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0
0 to 0.5
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
39.5 to 50.3
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
30 to 34
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.773 to 99.97
0.75 to 1.5