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EN 1.4618 Stainless Steel vs. AISI 201LN Stainless Steel

Both EN 1.4618 stainless steel and AISI 201LN stainless steel are iron alloys. They have a very high 97% 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 EN 1.4618 stainless steel and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
25 to 51
Fatigue Strength, MPa 240 to 250
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 480 to 500
530 to 680
Tensile Strength: Ultimate (UTS), MPa 680 to 700
740 to 1060
Tensile Strength: Yield (Proof), MPa 250 to 260
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 900
880
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 39
38
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
310 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
27 to 38
Strength to Weight: Bending, points 22 to 23
24 to 30
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15 to 16
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
16 to 17.5
Copper (Cu), % 1.0 to 2.5
0 to 1.0
Iron (Fe), % 62.7 to 72.5
67.9 to 73.5
Manganese (Mn), % 5.5 to 9.5
6.4 to 7.5
Nickel (Ni), % 4.5 to 5.5
4.0 to 5.0
Nitrogen (N), % 0 to 0.15
0.1 to 0.25
Phosphorus (P), % 0 to 0.070
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.015