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AWS ERTi-7 vs. S41050 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 190
160
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340
470
Tensile Strength: Yield (Proof), MPa 280
230

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
720
Melting Completion (Liquidus), °C 1670
1440
Melting Onset (Solidus), °C 1620
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 8.7
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
3.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 47
1.9
Embodied Energy, MJ/kg 800
27
Embodied Water, L/kg 470
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
98
Resilience: Unit (Modulus of Resilience), kJ/m3 360
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 8.8
7.2
Thermal Shock Resistance, points 26
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
84.2 to 88.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0.6 to 1.1
Nitrogen (N), % 0 to 0.015
0 to 0.1
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0