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AISI 201LN Stainless Steel vs. AISI 445 Stainless Steel

Both AISI 201LN stainless steel and AISI 445 stainless steel are iron alloys. They have 89% 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 445 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25 to 51
25
Fatigue Strength, MPa 340 to 540
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 530 to 680
310
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
480
Tensile Strength: Yield (Proof), MPa 350 to 770
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
480
Maximum Temperature: Mechanical, °C 880
950
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
21
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 38
38
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
98
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 38
17
Strength to Weight: Bending, points 24 to 30
18
Thermal Diffusivity, mm2/s 4.0
5.6
Thermal Shock Resistance, points 16 to 23
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 16 to 17.5
19 to 21
Copper (Cu), % 0 to 1.0
0.3 to 0.6
Iron (Fe), % 67.9 to 73.5
74.9 to 80.7
Manganese (Mn), % 6.4 to 7.5
0 to 1.0
Nickel (Ni), % 4.0 to 5.0
0 to 0.6
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0.1 to 0.25
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.012