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S17600 Stainless Steel vs. S21904 Stainless Steel

Both S17600 stainless steel and S21904 stainless steel are iron alloys. They have 88% 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 S17600 stainless steel and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 410
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 8.6 to 11
17 to 51
Fatigue Strength, MPa 300 to 680
380 to 550
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 560 to 880
510 to 620
Tensile Strength: Ultimate (UTS), MPa 940 to 1490
700 to 1000
Tensile Strength: Yield (Proof), MPa 580 to 1310
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 550
430
Maximum Temperature: Mechanical, °C 890
980
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.0
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 130
160

Common Calculations

PREN (Pitting Resistance) 17
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 70 to 150
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4390
380 to 2070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 54
25 to 36
Strength to Weight: Bending, points 28 to 37
23 to 29
Thermal Diffusivity, mm2/s 4.1
3.8
Thermal Shock Resistance, points 31 to 50
15 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.4
0
Carbon (C), % 0 to 0.080
0 to 0.040
Chromium (Cr), % 16 to 17.5
19 to 21.5
Iron (Fe), % 71.3 to 77.6
59.5 to 67.4
Manganese (Mn), % 0 to 1.0
8.0 to 10
Nickel (Ni), % 6.0 to 7.5
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.4 to 1.2
0

Comparable Variants