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AISI 334 Stainless Steel vs. Grade 29 Titanium

AISI 334 stainless steel belongs to the iron alloys classification, while grade 29 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 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 34
6.8 to 11
Fatigue Strength, MPa 150
460 to 510
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 360
550 to 560
Tensile Strength: Ultimate (UTS), MPa 540
930 to 940
Tensile Strength: Yield (Proof), MPa 190
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 1000
340
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Expansion, µm/m-K 16
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 22
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 4.1
39
Embodied Energy, MJ/kg 59
640
Embodied Water, L/kg 170
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 96
3420 to 3540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 19
58 to 59
Strength to Weight: Bending, points 19
47 to 48
Thermal Shock Resistance, points 12
68 to 69

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
5.5 to 6.5
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 0.25
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 19 to 21
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4