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AISI 201LN Stainless Steel vs. S33425 Stainless Steel

Both AISI 201LN stainless steel and S33425 stainless steel are iron alloys. They have 74% 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 S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25 to 51
45
Fatigue Strength, MPa 340 to 540
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 530 to 680
400
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
580
Tensile Strength: Yield (Proof), MPa 350 to 770
230

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
500
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
27
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
5.1
Embodied Energy, MJ/kg 38
71
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 20
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
210
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
20
Strength to Weight: Bending, points 24 to 30
19
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 16 to 23
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 17.5
21 to 23
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 67.9 to 73.5
47.2 to 56.7
Manganese (Mn), % 6.4 to 7.5
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 4.0 to 5.0
20 to 23
Nitrogen (N), % 0.1 to 0.25
0
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 0.020
Titanium (Ti), % 0
0.15 to 0.6