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AISI 301 Stainless Steel vs. AISI 446 Stainless Steel

Both AISI 301 stainless steel and AISI 446 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 301 stainless steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 440
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 7.4 to 46
23
Fatigue Strength, MPa 210 to 600
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 410 to 860
360
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
570
Tensile Strength: Yield (Proof), MPa 230 to 1080
300

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 840
1180
Melting Completion (Liquidus), °C 1420
1510
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Calomel Potential, mV -70
-230
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.4
Embodied Energy, MJ/kg 39
35
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
230
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21 to 52
21
Strength to Weight: Bending, points 20 to 37
20
Thermal Diffusivity, mm2/s 4.2
4.6
Thermal Shock Resistance, points 12 to 31
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.2
Chromium (Cr), % 16 to 18
23 to 27
Iron (Fe), % 70.7 to 78
69.2 to 77
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 6.0 to 8.0
0 to 0.75
Nitrogen (N), % 0 to 0.1
0 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030