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S33425 Stainless Steel vs. S32550 Stainless Steel

Both S33425 stainless steel and S32550 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 83% 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 S33425 stainless steel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
21
Fatigue Strength, MPa 210
400
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 400
540
Tensile Strength: Ultimate (UTS), MPa 580
860
Tensile Strength: Yield (Proof), MPa 230
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 500
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 27
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
3.8
Embodied Energy, MJ/kg 71
53
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 30
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
160
Resilience: Unit (Modulus of Resilience), kJ/m3 140
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
31
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 3.7
4.4
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.040
Chromium (Cr), % 21 to 23
24 to 27
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 47.2 to 56.7
57.2 to 67
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
2.9 to 3.9
Nickel (Ni), % 20 to 23
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0