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AWS ERTi-7 vs. S41041 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while S41041 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
17
Fatigue Strength, MPa 190
350
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340
910
Tensile Strength: Yield (Proof), MPa 280
580

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
740
Melting Completion (Liquidus), °C 1670
1450
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
29
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
2.2
Embodied Energy, MJ/kg 800
31
Embodied Water, L/kg 470
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360
860
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 24
27
Thermal Diffusivity, mm2/s 8.8
7.8
Thermal Shock Resistance, points 26
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0.13 to 0.18
Chromium (Cr), % 0
11.5 to 13
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
84.5 to 87.8
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0