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S32654 Stainless Steel vs. S39277 Stainless Steel

Both S32654 stainless steel and S39277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is S32654 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
250
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
28
Fatigue Strength, MPa 450
480
Poisson's Ratio 0.28
0.27
Reduction in Area, % 46
57
Shear Modulus, GPa 82
80
Shear Strength, MPa 590
600
Tensile Strength: Ultimate (UTS), MPa 850
930
Tensile Strength: Yield (Proof), MPa 490
660

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 11
16
Thermal Expansion, µm/m-K 15
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 34
23
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.4
4.2
Embodied Energy, MJ/kg 87
59
Embodied Water, L/kg 220
180

Common Calculations

PREN (Pitting Resistance) 57
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
240
Resilience: Unit (Modulus of Resilience), kJ/m3 570
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
33
Strength to Weight: Bending, points 25
27
Thermal Diffusivity, mm2/s 2.9
4.2
Thermal Shock Resistance, points 19
26

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.025
Chromium (Cr), % 24 to 25
24 to 26
Copper (Cu), % 0.3 to 0.6
1.2 to 2.0
Iron (Fe), % 38.3 to 45.3
56.8 to 64.3
Manganese (Mn), % 2.0 to 4.0
0 to 0.8
Molybdenum (Mo), % 7.0 to 8.0
3.0 to 4.0
Nickel (Ni), % 21 to 23
6.5 to 8.0
Nitrogen (N), % 0.45 to 0.55
0.23 to 0.33
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.0050
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2