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AWS ERTi-2 vs. S30615 Stainless Steel

AWS ERTi-2 belongs to the titanium alloys classification, while S30615 stainless steel belongs to the iron alloys. There are 27 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-2 and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
39
Fatigue Strength, MPa 190
270
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 340
690
Tensile Strength: Yield (Proof), MPa 280
310

Thermal Properties

Latent Heat of Fusion, J/g 420
340
Maximum Temperature: Mechanical, °C 320
960
Melting Completion (Liquidus), °C 1670
1370
Melting Onset (Solidus), °C 1620
1320
Specific Heat Capacity, J/kg-K 540
500
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 8.7
16

Otherwise Unclassified Properties

Base Metal Price, % relative 37
19
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 31
3.7
Embodied Energy, MJ/kg 510
53
Embodied Water, L/kg 110
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
220
Resilience: Unit (Modulus of Resilience), kJ/m3 360
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 8.7
3.7
Thermal Shock Resistance, points 27
16

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 0 to 0.030
0.16 to 0.24
Chromium (Cr), % 0
17 to 19.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
56.7 to 65.3
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
13.5 to 16
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
3.2 to 4.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.667 to 99.92
0