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S32760 Stainless Steel vs. S39274 Stainless Steel

Both S32760 stainless steel and S39274 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is S32760 stainless steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
17
Fatigue Strength, MPa 450
380
Poisson's Ratio 0.27
0.27
Reduction in Area, % 51
34
Rockwell C Hardness 24
28
Shear Modulus, GPa 80
81
Shear Strength, MPa 550
560
Tensile Strength: Ultimate (UTS), MPa 850
900
Tensile Strength: Yield (Proof), MPa 620
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 22
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.1
4.3
Embodied Energy, MJ/kg 57
60
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 42
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
140
Resilience: Unit (Modulus of Resilience), kJ/m3 930
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
32
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 23
25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24 to 26
24 to 26
Copper (Cu), % 0.5 to 1.0
0.2 to 0.8
Iron (Fe), % 57.6 to 65.8
57 to 65.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
2.5 to 3.5
Nickel (Ni), % 6.0 to 8.0
6.0 to 8.0
Nitrogen (N), % 0.2 to 0.3
0.24 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.020
Tungsten (W), % 0.5 to 1.0
1.5 to 2.5