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AISI 440C Stainless Steel vs. S44537 Stainless Steel

Both AISI 440C stainless steel and S44537 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.0 to 14
21
Fatigue Strength, MPa 260 to 840
230
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 430 to 1120
320
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
510
Tensile Strength: Yield (Proof), MPa 450 to 1900
360

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
530
Maximum Temperature: Mechanical, °C 870
1000
Melting Completion (Liquidus), °C 1480
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 22
21
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.4
Embodied Energy, MJ/kg 31
50
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 18
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 71
18
Strength to Weight: Bending, points 23 to 46
18
Thermal Diffusivity, mm2/s 6.0
5.6
Thermal Shock Resistance, points 26 to 71
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 1.0 to 1.2
0 to 0.030
Chromium (Cr), % 16 to 18
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78 to 83.1
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0.1 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0