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AISI 201LN Stainless Steel vs. AISI 301LN Stainless Steel

Both AISI 201LN stainless steel and AISI 301LN stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is AISI 201LN stainless steel and the bottom bar is AISI 301LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25 to 51
23 to 51
Fatigue Strength, MPa 340 to 540
270 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 530 to 680
450 to 670
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
630 to 1060
Tensile Strength: Yield (Proof), MPa 350 to 770
270 to 770

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 880
890
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 38
39
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
220 to 290
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
180 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 38
22 to 38
Strength to Weight: Bending, points 24 to 30
21 to 30
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 16 to 23
14 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 17.5
16 to 18
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 67.9 to 73.5
70.7 to 77.9
Manganese (Mn), % 6.4 to 7.5
0 to 2.0
Nickel (Ni), % 4.0 to 5.0
6.0 to 8.0
Nitrogen (N), % 0.1 to 0.25
0.070 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030

Comparable Variants