MakeItFrom.com
Menu (ESC)

AISI 304LN Stainless Steel vs. S21800 Stainless Steel

Both AISI 304LN stainless steel and S21800 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 304LN stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 350
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 7.8 to 46
40
Fatigue Strength, MPa 200 to 440
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 400 to 680
510
Tensile Strength: Ultimate (UTS), MPa 580 to 1160
740
Tensile Strength: Yield (Proof), MPa 230 to 870
390

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 960
900
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 16
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 270
250
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1900
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21 to 41
27
Strength to Weight: Bending, points 20 to 31
24
Thermal Shock Resistance, points 13 to 26
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 18 to 20
16 to 18
Iron (Fe), % 65 to 73.9
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Nickel (Ni), % 8.0 to 12
8.0 to 9.0
Nitrogen (N), % 0.1 to 0.16
0.080 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.060
Silicon (Si), % 0 to 0.75
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030