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AISI 321 Stainless Steel vs. S35140 Stainless Steel

Both AISI 321 stainless steel and S35140 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 321 stainless steel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 50
34
Fatigue Strength, MPa 220 to 270
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 420 to 460
460
Tensile Strength: Ultimate (UTS), MPa 590 to 690
690
Tensile Strength: Yield (Proof), MPa 220 to 350
310

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 480
500
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
5.5
Embodied Energy, MJ/kg 45
78
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 19
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 230
190
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 310
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
24
Strength to Weight: Bending, points 20 to 22
22
Thermal Diffusivity, mm2/s 4.1
3.7
Thermal Shock Resistance, points 13 to 15
16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 17 to 19
20 to 22
Iron (Fe), % 65.3 to 74
44.1 to 52.7
Manganese (Mn), % 0 to 2.0
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 9.0 to 12
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0 to 0.1
0.080 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.7
0