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AISI 204 Stainless Steel vs. AISI 201LN Stainless Steel

Both AISI 204 stainless steel and AISI 201LN stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 39
25 to 51
Fatigue Strength, MPa 320 to 720
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 500 to 700
530 to 680
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
740 to 1060
Tensile Strength: Yield (Proof), MPa 380 to 1080
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 850
880
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.6
Embodied Energy, MJ/kg 35
38
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
310 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
27 to 38
Strength to Weight: Bending, points 24 to 31
24 to 30
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 16 to 24
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 15 to 17
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 69.6 to 76.4
67.9 to 73.5
Manganese (Mn), % 7.0 to 9.0
6.4 to 7.5
Nickel (Ni), % 1.5 to 3.0
4.0 to 5.0
Nitrogen (N), % 0.15 to 0.3
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants