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S21800 Stainless Steel vs. S35000 Stainless Steel

Both S21800 stainless steel and S35000 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is S35000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 40
2.3 to 14
Fatigue Strength, MPa 330
380 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 510
740 to 950
Tensile Strength: Ultimate (UTS), MPa 740
1300 to 1570
Tensile Strength: Yield (Proof), MPa 390
660 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 900
900
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
14
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.2
Embodied Energy, MJ/kg 45
44
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 19
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
28 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 390
1070 to 3360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
46 to 56
Strength to Weight: Bending, points 24
34 to 38
Thermal Shock Resistance, points 17
42 to 51

Alloy Composition

Carbon (C), % 0 to 0.1
0.070 to 0.11
Chromium (Cr), % 16 to 18
16 to 17
Iron (Fe), % 59.1 to 65.4
72.7 to 76.9
Manganese (Mn), % 7.0 to 9.0
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 8.0 to 9.0
4.0 to 5.0
Nitrogen (N), % 0.080 to 0.18
0.070 to 0.13
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030