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AISI 440C Stainless Steel vs. S42300 Stainless Steel

Both AISI 440C stainless steel and S42300 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.0 to 14
9.1
Fatigue Strength, MPa 260 to 840
440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 430 to 1120
650
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
1100
Tensile Strength: Yield (Proof), MPa 450 to 1900
850

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 870
750
Melting Completion (Liquidus), °C 1480
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 22
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
3.2
Embodied Energy, MJ/kg 31
44
Embodied Water, L/kg 120
110

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 71
39
Strength to Weight: Bending, points 23 to 46
30
Thermal Diffusivity, mm2/s 6.0
6.8
Thermal Shock Resistance, points 26 to 71
40

Alloy Composition

Carbon (C), % 1.0 to 1.2
0.27 to 0.32
Chromium (Cr), % 16 to 18
11 to 12
Iron (Fe), % 78 to 83.1
82 to 85.1
Manganese (Mn), % 0 to 1.0
1.0 to 1.4
Molybdenum (Mo), % 0 to 0.75
2.5 to 3.0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3