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S33550 Stainless Steel vs. S45500 Stainless Steel

Both S33550 stainless steel and S45500 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280 to 500
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
3.4 to 11
Fatigue Strength, MPa 270
570 to 890
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Shear Strength, MPa 470
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 680
1370 to 1850
Tensile Strength: Yield (Proof), MPa 310
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 470
620
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
17
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.3
3.8
Embodied Energy, MJ/kg 61
57
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 30
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
45 to 190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
48 to 65
Strength to Weight: Bending, points 22
35 to 42
Thermal Shock Resistance, points 15
48 to 64

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.050
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 48.8 to 58.2
71.5 to 79.2
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 16.5 to 20
7.5 to 9.5
Niobium (Nb), % 0.050 to 0.15
0 to 0.5
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4