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S17400 Stainless Steel vs. AWS ERTi-1

S17400 stainless steel belongs to the iron alloys classification, while AWS ERTi-1 belongs to the titanium alloys. There are 29 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 S17400 stainless steel and the bottom bar is AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 11 to 21
24
Fatigue Strength, MPa 380 to 670
120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 75
41
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
240
Tensile Strength: Yield (Proof), MPa 580 to 1250
170

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 850
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1400
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 11
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 14
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.7
31
Embodied Energy, MJ/kg 39
510
Embodied Water, L/kg 130
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
52
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 32 to 49
15
Strength to Weight: Bending, points 27 to 35
19
Thermal Diffusivity, mm2/s 4.5
8.7
Thermal Shock Resistance, points 30 to 46
19

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 3.0 to 5.0
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 70.4 to 78.9
0 to 0.080
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.773 to 99.97