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AWS ERTi-2 vs. EN 1.4470 Stainless Steel

AWS ERTi-2 belongs to the titanium alloys classification, while EN 1.4470 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-2 and the bottom bar is EN 1.4470 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
23
Fatigue Strength, MPa 190
320
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 340
680
Tensile Strength: Yield (Proof), MPa 280
480

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1060
Melting Completion (Liquidus), °C 1670
1450
Melting Onset (Solidus), °C 1620
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
18
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
17
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
3.6
Embodied Energy, MJ/kg 510
49
Embodied Water, L/kg 110
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 8.7
4.8
Thermal Shock Resistance, points 27
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
21 to 23
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
63.7 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0 to 0.015
0.12 to 0.2
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 99.667 to 99.92
0