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AISI 334 Stainless Steel vs. Grade 15 Titanium

AISI 334 stainless steel belongs to the iron alloys classification, while grade 15 titanium belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is grade 15 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
20
Fatigue Strength, MPa 150
290
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 360
340
Tensile Strength: Ultimate (UTS), MPa 540
540
Tensile Strength: Yield (Proof), MPa 190
430

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 1000
320
Melting Completion (Liquidus), °C 1410
1660
Melting Onset (Solidus), °C 1370
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Expansion, µm/m-K 16
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 4.1
32
Embodied Energy, MJ/kg 59
520
Embodied Water, L/kg 170
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
100
Resilience: Unit (Modulus of Resilience), kJ/m3 96
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 19
33
Strength to Weight: Bending, points 19
33
Thermal Shock Resistance, points 12
41

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 18 to 20
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 55.7 to 62.7
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 19 to 21
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
98.2 to 99.56
Residuals, % 0
0 to 0.4