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AISI 334 Stainless Steel vs. Titanium 6-6-2

AISI 334 stainless steel belongs to the iron alloys classification, while titanium 6-6-2 belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is titanium 6-6-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34
6.7 to 9.0
Fatigue Strength, MPa 150
590 to 670
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
44
Shear Strength, MPa 360
670 to 800
Tensile Strength: Ultimate (UTS), MPa 540
1140 to 1370
Tensile Strength: Yield (Proof), MPa 190
1040 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 1000
310
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1560
Specific Heat Capacity, J/kg-K 480
540
Thermal Expansion, µm/m-K 16
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 22
40
Density, g/cm3 7.9
4.8
Embodied Carbon, kg CO2/kg material 4.1
29
Embodied Energy, MJ/kg 59
470
Embodied Water, L/kg 170
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
89 to 99
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 19
66 to 79
Strength to Weight: Bending, points 19
50 to 57
Thermal Shock Resistance, points 12
75 to 90

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
5.0 to 6.0
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
0.35 to 1.0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 55.7 to 62.7
0.35 to 1.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
5.0 to 6.0
Nickel (Ni), % 19 to 21
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0.15 to 0.6
82.8 to 87.8
Residuals, % 0
0 to 0.4