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AWS ERTi-12 vs. EN 1.4618 Stainless Steel

AWS ERTi-12 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-12 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, % 12
51
Fatigue Strength, MPa 200
240 to 250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 480
680 to 700
Tensile Strength: Yield (Proof), MPa 340
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 550
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 30
24 to 25
Strength to Weight: Bending, points 30
22 to 23
Thermal Diffusivity, mm2/s 8.7
4.0
Thermal Shock Resistance, points 37
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 0.0080
0
Iron (Fe), % 0 to 0.15
62.7 to 72.5
Manganese (Mn), % 0
5.5 to 9.5
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.060 to 0.090
4.5 to 5.5
Nitrogen (N), % 0 to 0.015
0 to 0.15
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.147 to 99.66
0