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S33550 Stainless Steel vs. AWS ERTi-7

S33550 stainless steel belongs to the iron alloys classification, while AWS ERTi-7 belongs to the titanium 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 S33550 stainless steel and the bottom bar is AWS ERTi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
20
Fatigue Strength, MPa 270
190
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 680
340
Tensile Strength: Yield (Proof), MPa 310
280

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1400
1670
Melting Onset (Solidus), °C 1360
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 4.3
47
Embodied Energy, MJ/kg 61
800
Embodied Water, L/kg 190
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
64
Resilience: Unit (Modulus of Resilience), kJ/m3 250
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.9
8.8
Thermal Shock Resistance, points 15
26

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 48.8 to 58.2
0 to 0.12
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 16.5 to 20
0
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.417 to 99.8