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S28200 Stainless Steel vs. SAE-AISI P20 Steel

Both S28200 stainless steel and SAE-AISI P20 steel are iron alloys. They have 64% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S28200 stainless steel and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 870
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.8
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 41
21
Embodied Water, L/kg 160
52

Common Calculations

PREN (Pitting Resistance) 29
2.6
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 32
19 to 37
Strength to Weight: Bending, points 27
19 to 29
Thermal Shock Resistance, points 17
18 to 35

Alloy Composition

Carbon (C), % 0 to 0.15
0.28 to 0.4
Chromium (Cr), % 17 to 19
0.4 to 2.0
Copper (Cu), % 0.75 to 1.3
0 to 0.25
Iron (Fe), % 57.7 to 64.1
95.2 to 98.5
Manganese (Mn), % 17 to 19
0.35 to 0.71
Molybdenum (Mo), % 0.75 to 1.3
0.3 to 0.55
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.030