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S41050 Stainless Steel vs. S44626 Stainless Steel

Both S41050 stainless steel and S44626 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is S41050 stainless steel and the bottom bar is S44626 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
23
Fatigue Strength, MPa 160
230
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 77
83
Shear Modulus, GPa 76
80
Shear Strength, MPa 300
340
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 230
350

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
560
Maximum Temperature: Mechanical, °C 720
1100
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
17
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.9
Embodied Energy, MJ/kg 27
42
Embodied Water, L/kg 97
160

Common Calculations

PREN (Pitting Resistance) 12
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
300
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 7.2
4.6
Thermal Shock Resistance, points 17
18

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.060
Chromium (Cr), % 10.5 to 12.5
25 to 27
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 84.2 to 88.9
68.1 to 74.1
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0.6 to 1.1
0 to 0.5
Nitrogen (N), % 0 to 0.1
0 to 0.040
Phosphorus (P), % 0 to 0.045
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
0.2 to 1.0