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S24000 Stainless Steel vs. S40920 Stainless Steel

Both S24000 stainless steel and S40920 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S24000 stainless steel and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
22
Fatigue Strength, MPa 370
130
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 88
77
Shear Modulus, GPa 77
75
Shear Strength, MPa 530
270
Tensile Strength: Ultimate (UTS), MPa 770
430
Tensile Strength: Yield (Proof), MPa 430
190

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
710
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 23
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
78
Resilience: Unit (Modulus of Resilience), kJ/m3 470
97
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
15
Strength to Weight: Bending, points 24
16
Thermal Shock Resistance, points 16
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
10.5 to 11.7
Iron (Fe), % 61.5 to 69
85.1 to 89.4
Manganese (Mn), % 11.5 to 14.5
0 to 1.0
Nickel (Ni), % 2.3 to 3.7
0 to 0.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0.2 to 0.4
0 to 0.030
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.5