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S31727 Stainless Steel vs. AWS ERTi-1

S31727 stainless steel belongs to the iron alloys classification, while AWS ERTi-1 belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
24
Fatigue Strength, MPa 240
120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 630
240
Tensile Strength: Yield (Proof), MPa 270
170

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 1010
320
Melting Completion (Liquidus), °C 1440
1670
Melting Onset (Solidus), °C 1390
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Expansion, µm/m-K 16
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 24
37
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 4.7
31
Embodied Energy, MJ/kg 64
510
Embodied Water, L/kg 180
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
52
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 20
19
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 53.7 to 61.3
0 to 0.080
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.773 to 99.97