MakeItFrom.com
Menu (ESC)

S20431 Stainless Steel vs. AWS ERTi-2

S20431 stainless steel belongs to the iron alloys classification, while AWS ERTi-2 belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S20431 stainless steel and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 46
20
Fatigue Strength, MPa 320
190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Tensile Strength: Ultimate (UTS), MPa 710
340
Tensile Strength: Yield (Proof), MPa 350
280

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 890
320
Melting Completion (Liquidus), °C 1400
1670
Melting Onset (Solidus), °C 1360
1620
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 17
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.5
31
Embodied Energy, MJ/kg 36
510
Embodied Water, L/kg 140
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
64
Resilience: Unit (Modulus of Resilience), kJ/m3 310
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.0
8.7
Thermal Shock Resistance, points 15
27

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.030
Chromium (Cr), % 17 to 18
0
Copper (Cu), % 1.5 to 3.5
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 66.1 to 74.4
0 to 0.12
Manganese (Mn), % 5.0 to 7.0
0
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.1 to 0.25
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
99.667 to 99.92