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AISI 329 Stainless Steel vs. S44735 Stainless Steel

Both AISI 329 stainless steel and S44735 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% 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 AISI 329 stainless steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
21
Fatigue Strength, MPa 330
300
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 24
22
Shear Modulus, GPa 80
82
Shear Strength, MPa 440
390
Tensile Strength: Ultimate (UTS), MPa 710
630
Tensile Strength: Yield (Proof), MPa 540
460

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
650
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 16
21
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
4.4
Embodied Energy, MJ/kg 44
61
Embodied Water, L/kg 170
180

Common Calculations

PREN (Pitting Resistance) 30
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 730
520
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 23
21
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 23 to 28
28 to 30
Iron (Fe), % 63.1 to 74
60.7 to 68.4
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.0
3.6 to 4.2
Nickel (Ni), % 2.0 to 5.0
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
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
0.2 to 1.0