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S35140 Stainless Steel vs. S44800 Stainless Steel

Both S35140 stainless steel and S44800 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 33 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 S35140 stainless steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 250
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
82
Shear Strength, MPa 460
370
Tensile Strength: Ultimate (UTS), MPa 690
590
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 500
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
3.8
Embodied Energy, MJ/kg 78
52
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 28
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 3.7
4.6
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.010
Chromium (Cr), % 20 to 22
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 44.1 to 52.7
62.6 to 66.5
Manganese (Mn), % 1.0 to 3.0
0 to 0.3
Molybdenum (Mo), % 1.0 to 2.0
3.5 to 4.2
Nickel (Ni), % 25 to 27
2.0 to 2.5
Niobium (Nb), % 0.25 to 0.75
0
Nitrogen (N), % 0.080 to 0.2
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020