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AWS ERTi-7 vs. S45000 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while S45000 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 S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
6.8 to 14
Fatigue Strength, MPa 190
330 to 650
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 340
980 to 1410
Tensile Strength: Yield (Proof), MPa 280
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
840
Melting Completion (Liquidus), °C 1670
1440
Melting Onset (Solidus), °C 1620
1390
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 8.7
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.5

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 47
2.8
Embodied Energy, MJ/kg 800
39
Embodied Water, L/kg 470
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 360
850 to 4400
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
35 to 50
Strength to Weight: Bending, points 24
28 to 36
Thermal Diffusivity, mm2/s 8.8
4.5
Thermal Shock Resistance, points 26
33 to 47

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 0
14 to 16
Copper (Cu), % 0
1.3 to 1.8
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
72.1 to 79.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0
5.0 to 7.0
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 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0