MakeItFrom.com
Menu (ESC)

S21904 Stainless Steel vs. S20161 Stainless Steel

Both S21904 stainless steel and S20161 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17 to 51
46
Fatigue Strength, MPa 380 to 550
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 510 to 620
690
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
980
Tensile Strength: Yield (Proof), MPa 390 to 910
390

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 980
870
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 43
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 25
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
360
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25 to 36
36
Strength to Weight: Bending, points 23 to 29
29
Thermal Diffusivity, mm2/s 3.8
4.0
Thermal Shock Resistance, points 15 to 21
22

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.15
Chromium (Cr), % 19 to 21.5
15 to 18
Iron (Fe), % 59.5 to 67.4
65.6 to 73.9
Manganese (Mn), % 8.0 to 10
4.0 to 6.0
Nickel (Ni), % 5.5 to 7.5
4.0 to 6.0
Nitrogen (N), % 0.15 to 0.4
0.080 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
3.0 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.040