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AWS ERTi-12 vs. EN 1.4859 Stainless Steel

AWS ERTi-12 belongs to the titanium alloys classification, while EN 1.4859 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-12 and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 12
23
Fatigue Strength, MPa 200
140
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Tensile Strength: Ultimate (UTS), MPa 480
490
Tensile Strength: Yield (Proof), MPa 340
210

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1050
Melting Completion (Liquidus), °C 1670
1410
Melting Onset (Solidus), °C 1620
1360
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 31
6.2
Embodied Energy, MJ/kg 510
88
Embodied Water, L/kg 110
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
91
Resilience: Unit (Modulus of Resilience), kJ/m3 550
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 30
17
Strength to Weight: Bending, points 30
17
Thermal Diffusivity, mm2/s 8.7
3.4
Thermal Shock Resistance, points 37
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.15
40.3 to 49
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.4
0 to 0.5
Nickel (Ni), % 0.060 to 0.090
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.147 to 99.66
0