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AWS ERTi-12 vs. EN 1.4821 Stainless Steel

AWS ERTi-12 belongs to the titanium alloys classification, while EN 1.4821 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-12 and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 12
18
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 41
79
Tensile Strength: Ultimate (UTS), MPa 480
730
Tensile Strength: Yield (Proof), MPa 340
450

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1670
1410
Melting Onset (Solidus), °C 1620
1370
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
15
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 31
2.9
Embodied Energy, MJ/kg 510
41
Embodied Water, L/kg 110
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 550
500
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 30
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 8.7
4.6
Thermal Shock Resistance, points 37
21

Alloy Composition

Carbon (C), % 0 to 0.030
0.1 to 0.2
Chromium (Cr), % 0
24.5 to 26.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
64.2 to 71.1
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.060 to 0.090
3.5 to 5.5
Nitrogen (N), % 0 to 0.015
0 to 0.1
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.8 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99.147 to 99.66
0