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AISI 201LN Stainless Steel vs. AISI 329 Stainless Steel

Both AISI 201LN stainless steel and AISI 329 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 201LN stainless steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25 to 51
17
Fatigue Strength, MPa 340 to 540
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 530 to 680
440
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
710
Tensile Strength: Yield (Proof), MPa 350 to 770
540

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 38
44
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 20
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 38
25
Strength to Weight: Bending, points 24 to 30
23
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16 to 23
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 17.5
23 to 28
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 67.9 to 73.5
63.1 to 74
Manganese (Mn), % 6.4 to 7.5
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 4.0 to 5.0
2.0 to 5.0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030