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AWS ERTi-1 vs. EN 1.4618 Stainless Steel

AWS ERTi-1 belongs to the titanium alloys classification, while EN 1.4618 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 24
51
Fatigue Strength, MPa 120
240 to 250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 240
680 to 700
Tensile Strength: Yield (Proof), MPa 170
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
900
Melting Completion (Liquidus), °C 1670
1400
Melting Onset (Solidus), °C 1620
1360
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 37
13
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
2.7
Embodied Energy, MJ/kg 510
39
Embodied Water, L/kg 110
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 140
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 15
24 to 25
Strength to Weight: Bending, points 19
22 to 23
Thermal Diffusivity, mm2/s 8.7
4.0
Thermal Shock Resistance, points 19
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
62.7 to 72.5
Manganese (Mn), % 0
5.5 to 9.5
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0 to 0.012
0 to 0.15
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.773 to 99.97
0