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S21900 Stainless Steel vs. S13800 Stainless Steel

Both S21900 stainless steel and S13800 stainless steel are iron alloys. They have 83% 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 S21900 stainless steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 50
11 to 18
Fatigue Strength, MPa 380
410 to 870
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
39 to 62
Shear Modulus, GPa 78
77
Shear Strength, MPa 510
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 710
980 to 1730
Tensile Strength: Yield (Proof), MPa 390
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 980
810
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
15
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
3.4
Embodied Energy, MJ/kg 43
46
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 25
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
35 to 61
Strength to Weight: Bending, points 23
28 to 41
Thermal Diffusivity, mm2/s 3.8
4.3
Thermal Shock Resistance, points 15
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 19 to 21.5
12.3 to 13.2
Iron (Fe), % 59.4 to 67.4
73.6 to 77.3
Manganese (Mn), % 8.0 to 10
0 to 0.2
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 5.5 to 7.5
7.5 to 8.5
Nitrogen (N), % 0.15 to 0.4
0 to 0.010
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0080