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S24000 Stainless Steel vs. AISI 439 Stainless Steel

Both S24000 stainless steel and AISI 439 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% of their average alloy composition in common. There are 31 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 AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
23
Fatigue Strength, MPa 370
170
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
51
Rockwell B Hardness 88
78
Shear Modulus, GPa 77
77
Shear Strength, MPa 530
310
Tensile Strength: Ultimate (UTS), MPa 770
490
Tensile Strength: Yield (Proof), MPa 430
250

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
530
Maximum Temperature: Mechanical, °C 910
890
Melting Completion (Liquidus), °C 1390
1510
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.3
Embodied Energy, MJ/kg 39
34
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
95
Resilience: Unit (Modulus of Resilience), kJ/m3 470
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 16
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
17 to 19
Iron (Fe), % 61.5 to 69
77.1 to 82.8
Manganese (Mn), % 11.5 to 14.5
0 to 1.0
Nickel (Ni), % 2.3 to 3.7
0 to 0.5
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 0.030
Titanium (Ti), % 0
0.2 to 1.1