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S21603 Stainless Steel vs. SAE-AISI P6 Steel

Both S21603 stainless steel and SAE-AISI P6 steel are iron alloys. They have 69% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is SAE-AISI P6 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 79
73
Tensile Strength: Ultimate (UTS), MPa 690
630 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
4.6
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.8
Embodied Energy, MJ/kg 50
24
Embodied Water, L/kg 160
59

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
22 to 68
Strength to Weight: Bending, points 22
21 to 44
Thermal Shock Resistance, points 15
21 to 63

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 17.5 to 22
1.3 to 1.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 57.6 to 67.8
92.9 to 95
Manganese (Mn), % 7.5 to 9.0
0.35 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
3.3 to 3.8
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030