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S32550 Stainless Steel vs. S44735 Stainless Steel

Both S32550 stainless steel and S44735 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S32550 stainless steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
21
Fatigue Strength, MPa 400
300
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 28
22
Shear Modulus, GPa 80
82
Shear Strength, MPa 540
390
Tensile Strength: Ultimate (UTS), MPa 860
630
Tensile Strength: Yield (Proof), MPa 620
460

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
650
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 20
21
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.8
4.4
Embodied Energy, MJ/kg 53
61
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 40
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 940
520
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 31
23
Strength to Weight: Bending, points 26
21
Thermal Shock Resistance, points 23
20

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 24 to 27
28 to 30
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 57.2 to 67
60.7 to 68.4
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.9 to 3.9
3.6 to 4.2
Nickel (Ni), % 4.5 to 6.5
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.1 to 0.25
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0