MakeItFrom.com
Menu (ESC)

AWS ERTi-2 vs. S31277 Stainless Steel

AWS ERTi-2 belongs to the titanium alloys classification, while S31277 stainless steel belongs to the iron alloys. There are 25 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 S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 20
45
Fatigue Strength, MPa 190
380
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 340
860
Tensile Strength: Yield (Proof), MPa 280
410

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1670
1460
Melting Onset (Solidus), °C 1620
1410
Specific Heat Capacity, J/kg-K 540
460
Thermal Expansion, µm/m-K 8.7
16

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 4.5
8.1
Embodied Carbon, kg CO2/kg material 31
6.7
Embodied Energy, MJ/kg 510
90
Embodied Water, L/kg 110
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
320
Resilience: Unit (Modulus of Resilience), kJ/m3 360
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 24
25
Thermal Shock Resistance, points 27
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 0
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
35.5 to 46.2
Manganese (Mn), % 0
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0 to 0.015
0.3 to 0.4
Oxygen (O), % 0.080 to 0.16
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 99.667 to 99.92
0