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S44635 Stainless Steel vs. S32101 Stainless Steel

Both S44635 stainless steel and S32101 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is S44635 stainless steel and the bottom bar is S32101 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
260
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 390
400
Poisson's Ratio 0.27
0.28
Rockwell C Hardness 24
27
Shear Modulus, GPa 81
78
Shear Strength, MPa 450
490
Tensile Strength: Ultimate (UTS), MPa 710
740
Tensile Strength: Yield (Proof), MPa 580
500

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 610
430
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.6
Embodied Energy, MJ/kg 62
38
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 39
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
230
Resilience: Unit (Modulus of Resilience), kJ/m3 810
640
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.4
4.0
Thermal Shock Resistance, points 23
20

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.040
Chromium (Cr), % 24.5 to 26
21 to 22
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 61.5 to 68.5
67.3 to 73.3
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 3.5 to 4.5
0.1 to 0.8
Nickel (Ni), % 3.5 to 4.5
1.4 to 1.7
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0.2 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 0.8
0