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S39277 Stainless Steel vs. S40910 Stainless Steel

Both S39277 stainless steel and S40910 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S39277 stainless steel and the bottom bar is S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
23
Fatigue Strength, MPa 480
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Shear Strength, MPa 600
270
Tensile Strength: Ultimate (UTS), MPa 930
430
Tensile Strength: Yield (Proof), MPa 660
190

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
2.0
Embodied Energy, MJ/kg 59
28
Embodied Water, L/kg 180
94

Common Calculations

PREN (Pitting Resistance) 43
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
80
Resilience: Unit (Modulus of Resilience), kJ/m3 1070
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
16
Strength to Weight: Bending, points 27
16
Thermal Diffusivity, mm2/s 4.2
6.9
Thermal Shock Resistance, points 26
16

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 24 to 26
10.5 to 11.7
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 56.8 to 64.3
85 to 89.5
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0.23 to 0.33
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0020
0 to 0.020
Titanium (Ti), % 0
0 to 0.5
Tungsten (W), % 0.8 to 1.2
0