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AWS ERTi-7 vs. EN 1.4104 Stainless Steel

AWS ERTi-7 belongs to the titanium alloys classification, while EN 1.4104 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is EN 1.4104 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
11 to 23
Fatigue Strength, MPa 190
230 to 310
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 340
630 to 750
Tensile Strength: Yield (Proof), MPa 280
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
860
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
25
Thermal Expansion, µm/m-K 8.7
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 47
2.2
Embodied Energy, MJ/kg 800
30
Embodied Water, L/kg 470
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 360
310 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
23 to 27
Strength to Weight: Bending, points 24
21 to 24
Thermal Diffusivity, mm2/s 8.8
6.7
Thermal Shock Resistance, points 26
22 to 27

Alloy Composition

Carbon (C), % 0 to 0.030
0.1 to 0.17
Chromium (Cr), % 0
15.5 to 17.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
78.8 to 84.1
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0.2 to 0.6
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
0.15 to 0.35
Titanium (Ti), % 99.417 to 99.8
0