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AWS ERTi-7 vs. AISI 314 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while AISI 314 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 AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
45
Fatigue Strength, MPa 190
210
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 340
590
Tensile Strength: Yield (Proof), MPa 280
230

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1670
1380
Melting Onset (Solidus), °C 1620
1340
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 47
4.3
Embodied Energy, MJ/kg 800
62
Embodied Water, L/kg 470
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
210
Resilience: Unit (Modulus of Resilience), kJ/m3 360
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 8.8
3.9
Thermal Shock Resistance, points 26
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.25
Chromium (Cr), % 0
23 to 26
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
46.7 to 56.5
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
19 to 22
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 0.045
Silicon (Si), % 0
1.5 to 3.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.417 to 99.8
0