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Grade 34 Titanium vs. AISI 317LMN Stainless Steel

Grade 34 titanium belongs to the titanium alloys classification, while AISI 317LMN stainless steel belongs to the iron alloys. There are 31 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 grade 34 titanium and the bottom bar is AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
45
Fatigue Strength, MPa 310
250
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
56
Shear Modulus, GPa 41
79
Shear Strength, MPa 320
430
Tensile Strength: Ultimate (UTS), MPa 510
620
Tensile Strength: Yield (Proof), MPa 450
270

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
1020
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 55
24
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 33
4.8
Embodied Energy, MJ/kg 530
65
Embodied Water, L/kg 200
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
230
Resilience: Unit (Modulus of Resilience), kJ/m3 960
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 31
22
Strength to Weight: Bending, points 31
20
Thermal Diffusivity, mm2/s 8.4
3.8
Thermal Shock Resistance, points 39
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0.1 to 0.2
17 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
54.4 to 65.4
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0.35 to 0.55
13.5 to 17.5
Nitrogen (N), % 0 to 0.050
0.1 to 0.2
Oxygen (O), % 0 to 0.35
0
Palladium (Pd), % 0.010 to 0.020
0
Phosphorus (P), % 0
0 to 0.045
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98 to 99.52
0
Residuals, % 0 to 0.4
0