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AISI 301L Stainless Steel vs. Grade 37 Titanium

AISI 301L stainless steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 30 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 AISI 301L stainless steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 22 to 50
22
Fatigue Strength, MPa 240 to 530
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 440 to 660
240
Tensile Strength: Ultimate (UTS), MPa 620 to 1040
390
Tensile Strength: Yield (Proof), MPa 250 to 790
250

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 890
310
Melting Completion (Liquidus), °C 1430
1650
Melting Onset (Solidus), °C 1390
1600
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.7
31
Embodied Energy, MJ/kg 39
500
Embodied Water, L/kg 130
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
76
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1580
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 22 to 37
24
Strength to Weight: Bending, points 21 to 29
26
Thermal Diffusivity, mm2/s 4.1
8.4
Thermal Shock Resistance, points 14 to 24
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 70.7 to 78
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
96.9 to 99
Residuals, % 0
0 to 0.4