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S32050 Stainless Steel vs. S44800 Stainless Steel

Both S32050 stainless steel and S44800 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 77% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S32050 stainless steel and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
190
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 46
23
Fatigue Strength, MPa 340
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
82
Shear Strength, MPa 540
370
Tensile Strength: Ultimate (UTS), MPa 770
590
Tensile Strength: Yield (Proof), MPa 370
450

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.0
3.8
Embodied Energy, MJ/kg 81
52
Embodied Water, L/kg 210
190

Common Calculations

PREN (Pitting Resistance) 48
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
120
Resilience: Unit (Modulus of Resilience), kJ/m3 330
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.3
4.6
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 22 to 24
28 to 30
Copper (Cu), % 0 to 0.4
0 to 0.15
Iron (Fe), % 43.1 to 51.8
62.6 to 66.5
Manganese (Mn), % 0 to 1.5
0 to 0.3
Molybdenum (Mo), % 6.0 to 6.6
3.5 to 4.2
Nickel (Ni), % 20 to 23
2.0 to 2.5
Nitrogen (N), % 0.21 to 0.32
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.020
0 to 0.020