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EN 1.4458 Stainless Steel vs. AWS ERTi-1

EN 1.4458 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 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, % 34
24
Fatigue Strength, MPa 150
120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
41
Tensile Strength: Ultimate (UTS), MPa 510
240
Tensile Strength: Yield (Proof), MPa 190
170

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1420
1670
Melting Onset (Solidus), °C 1370
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 15
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
37
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.4
31
Embodied Energy, MJ/kg 75
510
Embodied Water, L/kg 200
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
52
Resilience: Unit (Modulus of Resilience), kJ/m3 89
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17
15
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 4.2
8.7
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0 to 2.0
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 40.2 to 53
0 to 0.080
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
0
Nitrogen (N), % 0 to 0.2
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
99.773 to 99.97