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AISI 201LN Stainless Steel vs. AISI 439 Stainless Steel

Both AISI 201LN stainless steel and AISI 439 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 (3, 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 439 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
23
Fatigue Strength, MPa 340 to 540
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 530 to 680
310
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
490
Tensile Strength: Yield (Proof), MPa 350 to 770
250

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
530
Maximum Temperature: Mechanical, °C 880
890
Melting Completion (Liquidus), °C 1410
1510
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.3
Embodied Energy, MJ/kg 38
34
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 20
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
95
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 38
18
Strength to Weight: Bending, points 24 to 30
18
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 16 to 23
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 17.5
17 to 19
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 67.9 to 73.5
77.1 to 82.8
Manganese (Mn), % 6.4 to 7.5
0 to 1.0
Nickel (Ni), % 4.0 to 5.0
0 to 0.5
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 0.030
Titanium (Ti), % 0
0.2 to 1.1