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AISI 201LN Stainless Steel vs. Titanium 6-7

AISI 201LN stainless steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 201LN stainless steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 25 to 51
11
Fatigue Strength, MPa 340 to 540
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
45
Shear Strength, MPa 530 to 680
610
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
1020
Tensile Strength: Yield (Proof), MPa 350 to 770
900

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 880
300
Melting Completion (Liquidus), °C 1410
1700
Melting Onset (Solidus), °C 1370
1650
Specific Heat Capacity, J/kg-K 480
520
Thermal Expansion, µm/m-K 17
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 7.7
5.1
Embodied Carbon, kg CO2/kg material 2.6
34
Embodied Energy, MJ/kg 38
540
Embodied Water, L/kg 140
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 27 to 38
56
Strength to Weight: Bending, points 24 to 30
44
Thermal Shock Resistance, points 16 to 23
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 67.9 to 73.5
0 to 0.25
Manganese (Mn), % 6.4 to 7.5
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0.1 to 0.25
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88