MakeItFrom.com
Menu (ESC)

AISI 317L Stainless Steel vs. S21900 Stainless Steel

Both AISI 317L stainless steel and S21900 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 90% of their average alloy composition in common. There are 34 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 AISI 317L stainless steel and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
50
Fatigue Strength, MPa 220
380
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
57
Shear Modulus, GPa 82
78
Shear Strength, MPa 380
510
Tensile Strength: Ultimate (UTS), MPa 550
710
Tensile Strength: Yield (Proof), MPa 250
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1010
980
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.3
3.0
Embodied Energy, MJ/kg 59
43
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 31
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
300
Resilience: Unit (Modulus of Resilience), kJ/m3 150
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
26
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.8
3.8
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 18 to 20
19 to 21.5
Iron (Fe), % 58 to 68
59.4 to 67.4
Manganese (Mn), % 0 to 2.0
8.0 to 10
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
5.5 to 7.5
Nitrogen (N), % 0 to 0.1
0.15 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030