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AWS ERTi-1 vs. EN 1.4521 Stainless Steel

AWS ERTi-1 belongs to the titanium alloys classification, while EN 1.4521 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 EN 1.4521 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 24
23
Fatigue Strength, MPa 120
230
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
78
Tensile Strength: Ultimate (UTS), MPa 240
520
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
930
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
23
Thermal Expansion, µm/m-K 8.7
10

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
12
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
2.8
Embodied Energy, MJ/kg 510
39
Embodied Water, L/kg 110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 8.7
6.2
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 0
17 to 20
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
74.6 to 81.1
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nitrogen (N), % 0 to 0.012
0 to 0.030
Oxygen (O), % 0.030 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.773 to 99.97
0.15 to 0.8