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AISI 201 Stainless Steel vs. AISI 329 Stainless Steel

Both AISI 201 stainless steel and AISI 329 stainless steel are iron alloys. They have a moderately high 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 201 stainless steel and the bottom bar is AISI 329 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 440
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.6 to 51
17
Fatigue Strength, MPa 280 to 600
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 450 to 840
440
Tensile Strength: Ultimate (UTS), MPa 650 to 1450
710
Tensile Strength: Yield (Proof), MPa 300 to 1080
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 2.5
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) 19
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 340
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 2970
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 52
25
Strength to Weight: Bending, points 22 to 37
23
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 14 to 32
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 16 to 18
23 to 28
Iron (Fe), % 67.5 to 75
63.1 to 74
Manganese (Mn), % 5.5 to 7.5
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 3.5 to 5.5
2.0 to 5.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030