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S24000 Stainless Steel vs. SAE-AISI S7 Steel

Both S24000 stainless steel and SAE-AISI S7 steel are iron alloys. They have 69% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S24000 stainless steel and the bottom bar is SAE-AISI S7 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
74
Tensile Strength: Ultimate (UTS), MPa 770
670 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
5.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.3
Embodied Energy, MJ/kg 39
31
Embodied Water, L/kg 150
65

Common Calculations

PREN (Pitting Resistance) 23
8.4
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
24 to 72
Strength to Weight: Bending, points 24
22 to 46
Thermal Shock Resistance, points 16
22 to 66

Alloy Composition

Carbon (C), % 0 to 0.080
0.45 to 0.55
Chromium (Cr), % 17 to 19
3.0 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 61.5 to 69
91.6 to 94.9
Manganese (Mn), % 11.5 to 14.5
0.2 to 0.9
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 0.3