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S44800 Stainless Steel vs. S45500 Stainless Steel

Both S44800 stainless steel and S45500 stainless steel are iron alloys. They have 79% 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 S44800 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 210
190
Elongation at Break, % 23
3.4 to 11
Fatigue Strength, MPa 300
570 to 890
Poisson's Ratio 0.27
0.28
Reduction in Area, % 45
34 to 45
Rockwell C Hardness 18
32 to 54
Shear Modulus, GPa 82
75
Shear Strength, MPa 370
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 590
1370 to 1850
Tensile Strength: Yield (Proof), MPa 450
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 460
620
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
17
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.8
Embodied Energy, MJ/kg 52
57
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 42
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
45 to 190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
48 to 65
Strength to Weight: Bending, points 20
35 to 42
Thermal Shock Resistance, points 19
48 to 64

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.050
Chromium (Cr), % 28 to 30
11 to 12.5
Copper (Cu), % 0 to 0.15
1.5 to 2.5
Iron (Fe), % 62.6 to 66.5
71.5 to 79.2
Manganese (Mn), % 0 to 0.3
0 to 0.5
Molybdenum (Mo), % 3.5 to 4.2
0 to 0.5
Nickel (Ni), % 2.0 to 2.5
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4