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AISI 314 Stainless Steel vs. S32654 Stainless Steel

Both AISI 314 stainless steel and S32654 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is AISI 314 stainless steel and the bottom bar is S32654 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45
45
Fatigue Strength, MPa 210
450
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
46
Shear Modulus, GPa 78
82
Shear Strength, MPa 410
590
Tensile Strength: Ultimate (UTS), MPa 590
850
Tensile Strength: Yield (Proof), MPa 230
490

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 4.3
6.4
Embodied Energy, MJ/kg 62
87
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 25
57
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
330
Resilience: Unit (Modulus of Resilience), kJ/m3 130
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 3.9
2.9
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.020
Chromium (Cr), % 23 to 26
24 to 25
Copper (Cu), % 0
0.3 to 0.6
Iron (Fe), % 46.7 to 56.5
38.3 to 45.3
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 19 to 22
21 to 23
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 1.5 to 3.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050