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S44735 Stainless Steel vs. S82122 Stainless Steel

Both S44735 stainless steel and S82122 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S44735 stainless steel and the bottom bar is S82122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
260
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 21
34
Fatigue Strength, MPa 300
360
Poisson's Ratio 0.27
0.28
Rockwell C Hardness 22
28
Shear Modulus, GPa 82
78
Shear Strength, MPa 390
460
Tensile Strength: Ultimate (UTS), MPa 630
680
Tensile Strength: Yield (Proof), MPa 460
450

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 650
430
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 21
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.6
Embodied Energy, MJ/kg 61
37
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 42
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 520
510
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 28 to 30
20.5 to 21.5
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 60.7 to 68.4
68.9 to 75.4
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 3.6 to 4.2
0 to 0.6
Nickel (Ni), % 0 to 1.0
1.5 to 2.5
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.045
0.15 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0.2 to 1.0
0