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EN 1.4988 Stainless Steel vs. AWS ERTi-12

EN 1.4988 stainless steel belongs to the iron alloys classification, while AWS ERTi-12 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 1.4988 stainless steel and the bottom bar is AWS ERTi-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
12
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Tensile Strength: Ultimate (UTS), MPa 640
480
Tensile Strength: Yield (Proof), MPa 290
340

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 920
320
Melting Completion (Liquidus), °C 1450
1670
Melting Onset (Solidus), °C 1400
1620
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 6.0
31
Embodied Energy, MJ/kg 89
510
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
52
Resilience: Unit (Modulus of Resilience), kJ/m3 210
550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 23
30
Strength to Weight: Bending, points 21
30
Thermal Diffusivity, mm2/s 4.0
8.7
Thermal Shock Resistance, points 14
37

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 62.1 to 69.5
0 to 0.15
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 1.1 to 1.5
0.2 to 0.4
Nickel (Ni), % 12.5 to 14.5
0.060 to 0.090
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
99.147 to 99.66
Vanadium (V), % 0.6 to 0.85
0